buku ajar bi.docx
TRANSCRIPT
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1. READ ALL ARTICLES!2. LEARN HOW TO PRONOUNCE IT WELL!3. FIND EACH MEANING OF THE WORDS!4. GET THE MAIN UNDERSTANDING OF OVERALL!5. DISCUSS THE ARTICLES IN ENGLISH CLASS!
UNIT 1 BIG BANG
I. BIG BANG THEORYThe universe contains everything that exists: earth, the sun, the stars, galaxies, and
everything else in space. People have wondered how the universe got started for
thousands of years. Most scientists now think they have the answer. They think they
have the answer. They think the universe began about 14 billion years ago with a kind
of big explosion. They call the explosion the big bang.
In the early 1900s, physicist Albert Einstein came up with equations that
predicted an expanding universe. Other scientists used these equations to develop the
theory of the big bang.
No one knows what caused the big bang, but scientists think they know what
happened all the way back to the first seconds after the big bang.
The brand new universe was very hot and very small. It blew outwards very fast.
In the first three minutes, matter started to form. Hundreds of years later, the universe
looked like a big ball of fire. You can picture the universe as something like a black
balloon with white dots painted on it. The black represents space and the white dots
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are galaxies. Blowing air into the balloon makes it bigger. The spaces between each
dot get farther apart as the balloon expands.
As it got bigger, the universe got cooler. Hydrogen gas formed. The gas broke
into clumps. The clumps came together to make galaxies and stars. Other kinds of
matter formed in the stars. Finally, planets like earth formed around some stars.
II. PROOF OF A BIG BANGThe expansion of the universe is evidence for the big bang. American scientist Edwin
Hubble studied light coming from galaxies far out in the universe. In 1929, he found
that the galaxies were speeding away from earth and from each other in all directions.
Scientists tracked the paths of the galaxies must have started from the same place.
Packing all that matter into a small area would make a very dense, searing hot ball-the
big bang.
Black holes have such strong gravity that not even light can escape. They can also
twist space as they rotate, as the blue lines in the illustration show.
Scientists use math to describe how the universe behaves. In the early 1900s,
German American scientist came up with equations that predict an expanding
universe. These equations have correctly predicted the motions of stars, planets, and
light.
More proof came in the 1990s from a spacecraft called the Cosmic Background
Explorer (COBE). COBE saw rays coming from far off in the universe. They could
only have been created in a much smaller and hotter universe long ago.
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UNIT II SOLAR ENERGY
1. THE USE OF SOLAR ENERGYImagine a source of energy more powerful than a million electric power plants.
And imagine that this energy source will never run out. At least not for a few
billion years. This energy source is not imaginary. Its the sun. solar energy shines
down on us every day.
These solar energy panels convert energy from sunlight directly into
electricity. Solar power is a renewable source of energy. It will never run out.
Solar energy is produced inside the sun. it is the source of nearly all energy on
earth. This energy is stored in the ground, the oceans, and the wind. Even fossil
fuels, such as oil and natural gas, come from ancient plant life that once soaked up
sunlight. Today we use solar energy to heat buildings and produce electricity.
You may have seen solar collecting plates on top of buildings. They are
thin, flat boxes. The solar collectors capture the suns energy. Sunlight heats air or
water flowing through tubes in the boxes. The tubes carry the heat into the
building.
Most of the suns energy does not reach earths surface. It is scattered and
absorbed by the atmosphere, nespecially by clouds. Thats why usually you
usually find solar-heated houses in areas that get lots of sunlight. Even in sunny
places, it takes a lot of collecting plates to heat a house. Sometimes, not enough
solar energy can be stored for use at night or on cloudy days. So the house needs
an ordinary water heater and furnace, too.
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There are different kinds of solar collectors. Concentrating collectors are
much more powerful than flat-plate collectors. Concentrating collectors use
curved mirrors to focus the suns energy. They follow the sun as it moves through
the sky. They can produce temperatures high enough to boil water. They can be
used to produce electricity.
2. PRODUCT FROM SOLAR ENERGYWe use small amounts of electricity from solar energy today. A
photovoltaic cell is a kind of battery. It produces an electric current from solar
energy. Tiny photovoltaic cells power watches and calculators. They provide
electricity to satellites in space. Many photovoltaic cells linked together can
produce enough electricity for entire house.
Generating large amounts of solar power is more difficult. Power plants
that burn oil or coal can produce electricity more cheaply than a solar power plant
can. There are very few solar energy power plants operating today.
It will become cheaper to produce electricity from solar energy as
technology advances. Fossil fuels will become more expensive as they begin to
run out. Solar energy plants could become more common, once they can produce
energy more cheaply than other types of power plants.
Photovoltaic cells can be used to power cars. So far, such cars are only
experimental. But in 2003, a car was driven nearly 2,500 miles across Australia
using only solar power.
UNIT III
GLACIERS
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1. NOTION OF GLACIERSImagine a river of ice so powerful it could grind down mountains, carve out
valleys and lakebeds, and spit giant icebergs into the sea. The world is actually
full of them. They are called glaciers, and theyre found on every continent on
earth except Australia.
Glaciers may look like big, motionless blocks of ice and snow, but theyre
always on the move. Glaciers are responsible for making the world look the way
it does today.
Glacier is a large sheet of ice that moves slowly over the land. The worlds
largest glaciers form where it is very cold year round, such as the areas around the
north pole and south pole. But they can form anywhere it is cold enough for snow
and ice to remain all year without melting, such as tall mountains. Glaciers can
even be found in high mountain ranges near the equator, such as the northern
Andes of south America.
Glaciers form when new snow falls faster than the old snow can melt awy.
As more and more snow piles up, the newly fallen snow squashes the snow
beneath it. Under the weight of hundreds, sometimes thousands of feet of snow,
the lower layers of the glacier are amashed tightly together.
The crushing weight of all these layers of snow and ice turns the bottom
most layers of the glacier into dense ice. The ice eventually becomes so heavy
that the glacier moves downhill, like a gigantic slow moving river of ice.
2. MOVEMENT AND TYPES OF GLACIERS
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Most glaciers move very slowly, just few inches a day. But some glsciers can move as
much as 30 meters a day, about the distance from home plate to first base on a baseball
field. That may not seem very fast. Even a snail can move faster than a glacier. But the
movement of glaciers seems incredible when you consider that they can be the size of
mountains.
There are several types of glaciers. Mountain glaciers form in high mountains.
They fill mountain valleys and move slowly downhill. Icecap glaciers are larger. They
can cover entire islands or large inland areas in arctic areas. But the largets glaciers of all
are called ice sheets. They cover huge areas of land in the coldest arctic areas. In fact,
they can span entire continents and stretch into the sea, where pieces break off and
become icebergs. The ice sheet over the continent of Antarctica covers 13 million square
kilometers. Thats big enough to bury the entire United States or all ofEurope. Another
ice sheet covers almost all of the island of Greenland. The Greenland ice sheet is 1.8
million square kilometers wide and almost 2,700 meters thick.
3. GLACIERS CHANGEMost glaciers change in size over time. As you might expect, glaciers usually grow
bigger in the winter when theres a lot of snow. They get smaller in summer when
warmer weather melts some of the snow and ice away.
Glaciers also grow or shrink over very long periods of time. As earths climate
cools, glaciers expand. They shrink when the climate warms.
Ten thousand years ago, during a cold period in earths history called an ice age,
an enormous ice sheet blanketed more than half of north America. The movement of this
great ice sheet formed a lot of the landscape we see today.
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When glaciers move, they change the shape of the land under them. Glaciers
scour the surface and grind larger rocks down into small pieces. In the mountains,
glaciers can carve out large u-shape valleys.
Glsciers scoop up millions of tons of rock and drop it somewhere else. As a
glacier in the mountains move, it pushes huge piles of rock and dirt in front of itself and
off to the sides. Thismaterial foms uneven hills called moraines. Glaciers also have an
impact when they melt away.When a glacier melts, the ice turns into water that can form
new rivers and lakes. When a glacier retreats near the sea, it can leave a deep inlet called
a fjord.
UNIT IV
MICROSCOPIC LIFE
1. MICROSCOPIC LIFEThere is a world all around you that you cannot see. Billions of tiny creatures slither
and slide over tables and floors. They float and wiggle in drops of water. They stick
to your skin. Sometimes they get in your eyes, nose, and throat.
You can see most these tiny things only if you put them under a microscope.
These tiny life forms are called microscopic life or microorganisms. They are also
called microbes. Most microbes are made of just one cell. Your body by contrast has
billions of cells.
2. KINDS OF MICROBESThere are thousands of different kinds of microbes. Microbe scalled bacteria are the
smallest living things. Bacteria live almost everywhere: on land, in water, and even
inside you.
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Harmless bacteria in your body compete withy harmful germs. Harmless bacteria
compete for food and keep the harmful germs under control. Some bacteria in your
body help you digest your food.
UNIT V
ENDANGERED AND EXTINCT ANIMALS
1. EXTINCT ANIMALSYou have never watched a dodo bird scurry along the ground. You have never
been frightened by a saber toothed cat crouched in a tree. You have never seen the
huge tusks of a mastodon. These animals once lived on earth, but they all died
out. They went extinct.
One way to help save endangered animal is to set up protected areas for them to
live. National parks and game preserves, like this one in Africa, do not allow
hunting or other practices that threaten animals. You can see still blue whales,
giant pandas, and tigers. But these animals are in danger of becoming extinct.
There arentmany of them left. Blue whales, giant pandas, and tigers are some of
the endangered animals on earth. There are thousands of others.
Different kinds of animals have appeared and disappeared throughout earths
story. Some animals go extinct because the climate where they live changes. The
climate may become wetter or drier. It may become warmer or cooler. If the
animals can not change, or adapt to the new climate, they die.
Some animals go extinct because they can not compete with other animals for
food. Some animals go extinct because they are killed by enemies. New kinds of
animals are always evolving. Evolving means that the animals are changing
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slowly from generation to generation. Small differences between parents,
children, and grandchildren slowly add up over many, many generations.
Eventually, a different kind of animal evolves.
Sometimes many of the animals on earth go extinct at the same time. Scientist call
this a mass extinction. Scientists think there have been at least five mass
extinctions in earth history. The last mass extinction happened about 65 million
years ago. This mass extinction killed off the dinosaurs.
Scientists are not sure what caused the extinction of the dinosaurs. Many think an
asteroid or comet may have crashed into earth. The crash would have made a
huge dust cloud. The cloud could have blocked out the suns light for years.
Without light, plants, dinosaurs and other animals would die.
2. OUR KNOWLEDGE ABOUT EXTINCT ANIMALSScientist study fossils to learn about extinct animals. Fossils are the remains of
animals that have died. Fossils can be imprints of the animals left in rock. They
can be bones that have turned to stone. Scientists study fossils to learn what the
animals looked like. They study other rocks around the fossils to learn when the
animals lived. Some fossils are millions of years old.
Many animals are currently in danger of going extinct. Human beings are causing
thousands of kinds of animals to die off. Chemicals that pollute the environment
can endanger animals. Hunters kill some animals. Hunters kill rhinoceros for their
horns. They kill tigers for their skins. They kill elephants for their ivory tusks.
Most endangered animals today are in trouble because people are destroying their
habitats. A habitat is a place where an animal normally lives. Forests, deserts, and
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wetlands are kinds of habitats. Many endangered animals live in tropical rain
forests. People cut down rain forests to build farms, roads, and towns. They drain
water from wetlands. Gorillas and koala bears are endangered because of
destruction of the forests in which they live.
3. PREHISTORIC ANIMALSThe world is full of all sorts of animals. Dogs, birds, snakes, frogs, whales, and
ants are just a few kinds of animals alive today. But the animals we have today
did not always exist. They developed from other animals that lived long ago.
Those early animals included dinosaurs, tiny ancestors of horses, and gigantic
flightless birds.
Those animals and many others became extinct, or died out. They are called
prehistoric animals because they lived in prehistoric times. Prehistoric times are
all of time until about 5,500 years ago. That is when people began to invent
writing and record history. But most extinct animals lived much longer ago than
that.
Not all animals that lived in prehistoric times are extinct. Cockroaches, for
example, have existed almost unchanged for 320 million years. Crocodiles and
sharks are also much the same as their ancestors. Such animals are often called
living fossil.
After the dinosaurs disappeared, a group of animals called mammals spread all
over the planet. Mammals feed their young with mothers milk. Cats, dogs, cows,
horses, people, and many other animals alive today are mammals.
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The first mammals were small animals just a few centimeters long. As long as the
dinosaurs were stomping around, mammals stayed small and came out mainly at
night. When the dinosaurs were finally gone, mammals started evolving into
bigger animals. Some mammals returned to the sea. Those animals evolved into
dolphins and whales.
UNIT VI
ANCIENT GREECE
1. GREEK CIVILIZATIONWithout the Greeks, who would have given us science, technology,
democracy, politics, drama, and history? All of these words, as well as the
ideas they represent, originated in Ancient Greece.
Athens was one of the most powerful city states of Ancient Greece. The
greatest symbol of its power was the Parthenon, a temple dedicated to the
Greek goddess Athena. The temple was built in the 400s BC.
Greece is a mountainous peninsula that juts into the Mediterranian sea. It
includes hundreds of rocky islands off the coast. But the people of ancient
Greece settled over a much wider area, from southern France to Asia Minor.
Everywhere they went, they brought their language and traditions with them.
The first Greek Civilization developed on the Mediterranean island of Crete
around 2200 BC. This civilization was called Minoan after a legendary ruler
of Crete named
Minos. The Minoans lived by farming, fishing, and seafaring. Their rulers
built huge, brightly painted palaces. A magnificent palace at Knossos may
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have belonged to king minos. The Minoans invented a way of writing, but no
one today can read it.
Soon after 1500 BC, Minoan civilization collapsed. Mycenae, a city on
mainland Greece, rose to power. The myceneans built palaces fortified with
massive walls, and they rode in chariots. They must have been rich because
beautiful objects of gold were found in their graves. The myceneans were
warriors. They fought each other, and they went to war in distant places, such
as troy in asia minor.
2.
HOW GREECE REBUILT
Slowly Greece recovered. The Greek people organized themselves into self-
governing communities called city-states. Each city had homes, workshops,
temples devoted to the greek gods, markets, schools, sport arenas, and
meeting places.
A city state also controlled the surrounding countryside. In villages and on
farms, greek families grew olives, grapes, and grain for food. They raised
sheep and goats for hides and wool.
Along the coast, people lived by fishing or by trading with other
Mediterranean lands. They sold olive oil, wine, timber, and craft products.
The Greeks were especially known for their excellent metalwork and painted
pottery.
The Greeks liked debating, questioning, and exploring new ideas. They
admired logical arguments and scientific proof. They believed in justice and
human dignity. But they were not all equal. Some Greeks were born free.
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Others were slaves with no rights. Greek men had freedom to work, study and
travel. Women spent their lives at home. They wove cloth, bore children, and
cared for their families.
The Greeks also believed in gods who controlled human lives. They honored
the gods and made offerings to them. In return, they hoped for blessings. To
please the gods, city states held religious festivals with competitions in music,
dance, drama, poetry, and sports. The Olympic games began as a religious
festival of this kind, probably 776 BC.
3.
THE END OF GREEK POWER
In 338 BC, Greece was conquered by Macedonia, a kingdom to the north. City
states lost their political power, but greek civilization continued and spread to
many distant lands. Under Macedonian rule, greek philosophers,
mathematicians, and scientists made discoveries that are still useful today.
In 146 BC, roman armies invaded Greece. Roman leaders admired greek
achievements, and so greek ideas and artistic styles spread still further,
through the lands of the roman empire. In AD 395, Greece became part of the
Byzantine Empire. It was ruled from the city of Constantinople. Greek
language, knowledge, and technology remained important until the Byzantine
Empire fell to Ottoman Turks in 1453.
Today, greek civilization still shapes the way people think, speak, study,
govern, design buildings, and spend their leisure time. Many words in the
English language come from Greek roots. Questions raised by greek
philosophers are still debated. Greek plays are read and performed. The
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Olympic games are held every four years, just as in Ancient Greece. Many of
our buildings, especially those with tall round columns are modeled after
Greek buildings. The influence of ancient Greece is felt throughout Europe
and in all the lands that European nations once ruled.
UNIT VII
GOLD RUSH
1. THE CALIFORNIA GOLD RUSHIn 1849, one word sent thousands of people scrambling on a dangerous
journey to California. GOLD. A worker at John Sutters sawmill in
Californias Sacramento Valley discovered gold there in January 1848.
The word spread across the country like wildfire. The news flew to
faraway China and Europe. The gold rush was on.
Thousands of prospectors headed to California when gold was discovered
there in the late 1840s. one of the main ways to find gold back then was to
pan for it in rivers and streams.
The journey west to California wasnt easy in those days. Many forty
niners, as the gold seekers were called, travelled by boat. Some sailed
around the tip of South America and up to California. A large number of
ships sank on this dangerous voyage. Others sailed to Panama, travelled
on land to Panama City, and then hopped on another boat to San
Francisco.
But most people walked or rode on horseback several thousands miles to
the California gold fields. Gold seekers followed such routes as the
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Oregon trail and the mormon trail across the great plains. People faced
harsh conditions: burning heat, rain and snow, lack of water and steep
mountains to cross. Cholera and other diseases killed thousands of forty-
niners before they ever reached California.
People braved these hazards because they dreamed of striking it rich. The
promise of gold lured over 200,000 people to California in just few years.
2. THE WAY FORTY-NINERS FOUND GOLDMost forty niners were men. They crowded into muddy mining camps,
sleeping in flimsy shacks or tents.
Miners spent their days for digging gold. In the early days of the gold
rush, a man could pocket $300 0r $400 in gold before supper, a fortune at
the time. Miners also panned for gold in streams and rivers, gathering dirt
and rock in metal pans. Water washed away the dirt and left the heavier
gold in the pan.
Not everyone found gold. In fact, most peoples dreams of quick riches
never came true. In 1851, mining began shifting into a business run by
companies.
Gold fever brought a huge wave of people into the west. New western
settlements sprang up almost overnight. Some became abandoned ghost
towns after the gold rush, but others survived. These early settlers helped
California grow in its first years of statehood.
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The gold rush also pumped billions of dollars into the United states
economy. This money helped build railroads and factories, establishing
America as a nation industry.
3. THE KLONDIKE GOLD RUSHIn 1896, George Carmack and his Indian friends, Skookum Jim and
Tagish Charlie, found a gold nugget in Bonanza Creek. The creek flows
into the Klondike river. When word of the discovery got out thousands of
people flocked to the area in search of gold, the Klondike gold rush was
on.
Few klondikers were prepared for the regions rugged conditions. Many
died trying to get there, so a rule was made. Anyone coming to the area
had to bring along supplies for a whole year. The supplies included
hundreds of pounds of food, heavy woolen blankets, and sturdy boots.
Most gold seekers travelled the chilkoot trail from Alaska through British
Columbia. Those who could afford it hired dogsled teams, horseback
riders, rafts and paddle-wheel riverboats brought them over the rapids to
Dawson city.
UNIT VIII
ARCHITECTURE
1. THE MAKING OF ARCHITECTUREWe ask for a lot from our buildings. They have to keep out the rain,
wind, rats, and bugs, not to mention our enemies. They need to store
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our stuff, keep us warm when its cold, and keep us cool when its too
hot. We also like our buildings to be well constructed and beautiful.
Architecture is the important art and science of making buildings.
Architects are the bosses who design buildings and supervise their
construction.
Kings and nobles built castles to defend themselves against enemies.
They often had high walls and water filled moats surrounding them.
One such castle is bodiam castle, which was built in the 1300s in
England.
Buildings once were made of whatever materials were available.
Where forests grew, for example, people used wood. Where there were
no trees, people used the earth itself. They dried mud in the sun to
make bricks. In the far north, they used blocks of snow or ice.
These materials arent long lasting, however. Mud bricks wear away
wooden building catch fire and burn down.
Stone wont catch fire, and it can be expected to endure. Many kinds
of stone, including marble and limestone, are good materials to build
with. Steel is strong and lightweight. It lets architects build tall
buildings like skyscraper.
But deciding on what materials to use isnt usually the first thing an
architect thinks about. The architect needs to know the reason for the
building. How will the building be used.
2. REASONS FOR BUILDINGS
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Shelter is the most basic reason for building. Buildings shelter us at
home, at work, and at play. All buildings must shelter us from rain,
wind, sun, and cold.
Buildings also provide security. Some of the worlds most permanent
structures were built to defend against enemies. Castles had moats and
drawbridges to keep enemies out, and high walls from which to pour
down boiling oil on them.
Some of the most impressive buildings provide places for worship.
Temples, churches, and mosques must meet spiritual needs. The
soaring heights of a gothic cathedral, for example inspire amazement
and admiration.
Some buildings are just for showing off. Kings and emperors insisted
on grand palaces and castles. People with money have always
demanded that architecture display their wealth. Today, large
corporations, governments, and universities demonstrate their
importance by putting up impressive buildings.
Architects today design all kinds of buildings. Our way of life calls for
office buildings, large apartment complexes, shopping centre, schools,
hospitals, airports, and hotels.
3. CASTLESA castle was the fortress and home of a monarch or noblemen. It
offered excellent protection to the person who owned it. A castle
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helped its owner defend the land on which it stood. It also served as a
residence for the owners family and many servants.
Castles played an important role in a system called feudalism. That
system arose in Europe after the fall of the Roman Empire. In
feudalism, a king granted land to nobles. In return, the nobles pledged
to serve the king and provide him with soldiers.
Nobles built castles on the lands given to them by the king. But some
nobles simply claimed land as their own and built a castle on it. That
was asking for trouble. There were many power struggles between
nobles and kings, and among the nobles themselves. Warfare was
frequent.
UNIT IX
FOOD AND NUTRITION
1. OUR NEED FOR FOODWhat is your favourite food? Some people love pizza. Some
people love ice cream. Not many would say broccoli is their
favorite food. But you can not eat only pizza and ice cream all the
time. You also need fruits, vegetables, and other kinds of food.
Water is also very important for your body.
A diet that includes a large amount of fatty food, such as
hamburger and fries can contribute to many types of illnesses,
including heart disease and cancer.
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You need food for many reasons. You need food in order to live.
You need food to satisfy your hunger. Your stomach feels hungry
when you need to eat more food. Your body needs to make energy.
Every part of your body uses energy from food. Your brain uses
energy to think. Your heart uses energy to beat. Your muscles use
energy to move. Growing requires food. Your body also needs
energy from food to stay warm. Eating the right kinds of food can
help keep you healthy. Eating certain food can help prevent some
diseases.
The human body is 65 percent water. Water makes up most of your
blood and helps carry oxygen and food to the cells in your body.
Water helps your body get rid of wastes through urine and sweat.
Water does many other things inside your body. You could live
only eight to ten days without water. You could live for weeks
without food. You need eight to ten cups of water each day to
replace the water that your body uses up. But dont worry, drink
such as milk or juice contain mostly water. Many food, especially
juicy fruits, contain water as well.
2. THE BEST FOOD TO EATYou need all kinds of food to keep your body strong and healthy.
Nutritionists say you should eat grains, such as bread, pasta, and
cereal. You should eat eggs, milk, cheese, and other dairy
products. You should eat meat, fish, beans or tofu. They also say
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you need to eat plenty of fruits and vegetables every day. But you
should not eat too many food with a lot of fats and sugars.
You need to eat some of each of these different kinds of food to get
chemicals called nutrients. Carbohydrates, proteins, fats, vitamins,
minerals, and water are nutrients.
Carbohydrates are your bodys main source of energy.
Carbohydrates come from starches and sugars. Starchy food are
bread, cereals, pasta, corn, beans, peas, and potatoes. Sugars are in
fruits, honey, maple sigar, and the sugar in your sugar bowl. Many
vegetables and milk products also have some sugars. Your body
breaks down the carbohydrates in sugars and starches to make a
very simple kind of sugar called glucose. Glucose goes into your
bloodstream. Your blood carries glucose to your brain and your
muscles for energy. Extra glucose Gets changed so it can be stored
in your liver and fat cells. You can use this stored energy later.
Proteins build and repair body tissues, from hair and fingernails to
muscles. Proteins also fight infection and carry oxygen from your
lungs to the rest of your body.
You get proteins from food that comes from minerals, such as
eggs, milk, meat, fish and poultry. You can also get proteins from
plants, such as vegetables, grains, beans, and rice. Some people
called vegetarians do not eat food from animals. Vegetarians can
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get all their proteins by eating grains, dried peas and beans, rice,
nuts, and tofu.
3. FATSfats pack more energy than any other kind of food. Fats play an
important role in protecting your cells. Fats help your body take up
certain vitamins. There are different kinds of fats. Animal fats
come from eggs, dairy products, and meats. These foods are high
in saturated fats and cholesterol. Nutritionists believe that eating
too much saturated fat and cholesterol is bad for your health.
Vegetable fats come from such foods as avocados, olives, nuts, and
vegetable oils. These foods contain different kinds of fat that are
healthier.
UNIT X
BASEBALL
1. NOTION OF BASEBALLBaseball is the game that most Americans know best. The
sound of baseball games is the sound of summer across the
United States. Baseball player Sammy Sosa is known for his
long, dramatic home runs. Sosa slugged more than 60 home
runs in 1998, 1999, and 2001. Most Americans have played
some form of baseball. The game has been called Americas
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national past time. Its also the most popular team sport in
Japan, Cuba, and other countries.
Baseball is a game between two teams. The team that scores
the most runs wins. Batters try to move around the bases and
score runs. Batters can get on base in a number of ways, most
often by a hit or a walk. Fielders try to put players on the
opposing team out. Fielders put players out by catching balls
hit in the air or by throwing the ball to a base before the runner
gets there. Pitchers try to put batters out by throwing pitches
the batters cannot hit.
A manager or coach directs a teams play. Umpires make sure
the game is played according to the rules. They decide if base
runners are safe or out. An umpire at home plate decides
whether a pitch is a strike or a ball.
2. THE MAJOR BASEBALL LEAGUESMost baseball players start playing in organized baseball
leagues at a young age. They dream of competing one day in
the major leagues. Major league baseball is the highest level of
baseball competition in the united states and Canada.
There are two professional baseball leagues in the major
leagues: the national leagues and the American league. The
teams in these leagues are in big cities in the united states and
Canada. Major league teams play from april to October.
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If you live in a small city or town, you have a chance to see
future major league star by going to minor league games
nearby. Players prepare for the major leagues by playing in the
minor leagues. Baseballs great players are honored at the
national baseball hall of fame and museum. Its in
cooperstown, new York.
The major league baseball season ends with the world series.
Thats when the two best teams in the majors play for the
championship. A series of playoffs between the best teams in
each league decides who goes to the world series. The new
York Yankees have won more world series titles than any other
team in baseball.
3. BASEBALL RECORDSRecords are an important part of baseball. Baseball fans watch
excitedly as past records are broken and new records are set.
Players compete to set records for hitting, pitching, and
fielding. There are also records that nobody wants, such as
number of errors by a fielder or strikeouts by a batter.
Excitement ran high in 1998 as two players dueled to set the
record for home runs in one season. Mark McGwire of the St.
Louis Cardinals ended the 1998 season with 70 home runs.
Sammy Sosa of the Chicago Cubs came in slightly behind with
66. Barry Bonds of the San Francisco Giants then set a new
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record of 73 home runs in 2001. The most famous holder of the
home run record was Babe Ruth. The Babe set a record of 60
home runs for the Yankees in 1927. His record held until 1961,
when Roger Maris of the Yankees hit 61.
For many years, Babe Ruth also held the record for all time
home runs-714. Hank Aaron of the Atlanta Braves broke the
record in 1974. Aaron went on to hit 755 home runs in all. No
player has come close to breaking a record set by Joe
Dimaggio of the Yankees in 1941. That year, Dimaggio got at
least one hit in 56 consecutive games.
Every pitches dreams of throwing a perfect game. A game in
which no batter gets on base. Very few pitchers succeed. Don
Larsen of the Yankees stunned the world when he pitched a
perfect game in the 1956 World Series.
Each year, the best pitcher in each leadue receives theCy
Young Award. The award is named after the pitcher who holds
the record for major league wins, with 511. Roger Clemens has
won six Cy Young Awards, more than any other pitcher.
UNIT XI
MYTHICAL CREATURES
1. KINDS OF MYTHICAL CREATURESPeople have always told stories about mythical creatures,
such as dragons, unicorns, and mermaids. Before the days
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of airplanes and cameras, nobody could be sure what wild
beasts might live in lands far away. Even now we are not
exactly sure what lives at the bottom of the sea or on top of
the highest mountains.
The legendary English hero St. George supposedly killed a
dragon to save a town. Travelers used to come home with
tales of extraordinary creatures. Some tales were true and
some were false. People laughed at the idea of a giraffe
before they had seen one. On the other hand, there was a
time when almost everyone thought that dragons were real.
2. MAN-EATING SPIDERS AND GIANT BIRDSJapan has several mythical spiders, including Tsuchi-
Gumo, a monster that could only be destroyed by fire.
Another story tells of spider woman, who lives in a lonely
castle and traps travelers in her sticky webs.
Not all legendary spiders are evil. Native American and
West African mythologies include spider gods. However,
many of us are still frightened of spiders, and horrifying
ones appear in several recent stories, including the lord of
the rings and the harry potter books.
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A spider would have to be huge to eat human being, but
would still not as big as the roc, a bird that supposedly
could carry off an elephant. In the Arabian night tales,
Sinbad the sailor travels through the sky clinging to the
rocs leg.
3. LEGENDS OF SEA AND LAKEMany real creatures that live underwater have inspired
legends. Whales and giant squid are remarkable animals.
People used to exaggerate their size and powers. There are
legends of whales swallowing men alive. Krakens, huge sea
creatures that look like giant squids, were said to pull
whole ships under the waves.
Tales are also told about mermaids, beautiful women with
fish tails instead of legs. Mermaids represented danger to
sailors. Sailors who heard them singing could become
entranced and steer their ships onto the rocks.
Hardly anyone believes in mermaids now. But plenty of
people think that a huge number monster lives in Loch
Ness, a lake in Scotland. There have been tales about a long
necked, hump backed animal in the lake since 6th century
AD. Nobody has proved that this sea serpent exists.
The abominable snowman is another legendary creature
that fascinates people. Explorers of the Himalaya
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mountains in Asia tell stories of this wild man of the
mountains. People have even take photographs and made
plaster casts of what they think are its enormous footprints.
A similar hairy creature known as bigfoot supposedly lives
in north America. Bigfoot is said to roam the mountains
and forests of the pacific northwest.
UNIT XII
WRITING AND ALPHABET
1.
NOTION OF WRITING
Where would be without writing? There would no books, magazines, or newspapers.
There would be no instructions for putting together a bike or a VCR. There would be no
birthday or anniversary cards. There would be no signs on the road to tell us where to go.
A thousand years ago, only a few people knew how to write, mostly monks and
other religious officials. These people carefully copied books by hand, as this painting
shows.
Writing is a method of communication. It uses marks that we see and understand.
The marks we use to write English are the letters of the alphabet. They stand for sounds.
At a very young age, we memorize the letters of our alphabet and their sounds.
Once we have done that, we can combine the marks into words and sentences. Other
people can understand them. We can understand what other people have written. We also
can write down our thoughts just for ourselves.
2. BIRTH OF THE ALPHABET
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After signs got linked to sounds, the next big step in writing was the development of an
alphabet. With an alphabet, people no longer had to guess what a picture meant. Without
an alphabet, how could they tell if a picture of a bee, for example, meant the insect bee,
the verb to be, or the first syllable in another word like believe?
The alphabet developed in the middle east. The first alphabet we know about was
developed by the Phoenicians who lived in what is now Lebanon. Their alphabet had 22
letters.
The Phoenician alphabet did not have letters for vowels. The Greeks added those letters.
Our word alphabet comes from the first two letters of the Greek alphabet, alpha and beta.
An alphabet is a clever set of letters or other symbols. Each letter represents a different
sound of language. These letters can be combined to write all the words of a language.
There are about 50 different alphabets used in the world today. They are different in the
way they look and in the sounds their letters stand for. Most alphabets have between 20
and 30 letters. The English language uses the Roman alphabet. It has 26 letters.
Languages with fewer sounds require fewer letters. The sounds of the Hawaiian
language, for example, are written using only 12 letters of the Roman alphabet. This
alphabet has the fewest letters of any language. Other alphabets, such as Sinhalese, the
alphabet of Sri Lanka, have 50 letters or more.
3. THE ENGLISH LANGUAGEEnglish is one of the great thieves. It is constantly borrowing. It started out taking words
from Latin, Greek, French, and German. The English went on to borrow words from
more than 50 different languages. From Italian, it took cameo, stanza, and violin, for
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example. From Spanish and Portuguese, it borrowed the words alligator, canyon, and
sombrero. From native Americans, it got raccoon and wigwam. Peru contributed ilama
and quinie. The Caribbean islands gave English barbecue and cannibal. From Africa
came chimpanzee and zebra, from India came bandanna, curry, punch, and from
Australia came kangaroo and boomerang.
Science caused an explosion in words. Some words in Science combine parts of Greek
and Latin words. They include penicillin, stethoscope, and supersonic. Others were
borrowed from languages spoken today. Robots come from a Czech word.
UNIT XIII
1. CARTOONSThe word cartoon once meant something entirely different than it does today. It was used
to describe a sketch made by an artist to prepare for a painting or other work. In the
1840s, the English magazine Punch published cartoons that made fun of artwork planned
for public buildings in London. Since then, cartoon has generally meant a drawing
intended to be funny or to make a point.
Many newspapers and magazine have editorial cartoons, which express an opinion. Such
cartoons often use caricatures, or exaggerations of a persons features, to make fun of
figures like politicians. Gag cartoons tell a joke. Editorial and gag cartoons usually have a
single panel, a box with a border around it. They may include words, but sometimes they
show only a drawing.
Cartoons that are animated, or appear to move, have been around for centuries. The first
ones were called flipbooks. They were made of pages of drawings. Each drawing was
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slightly different from the last. People flipped the pages with their thumb. The characters
appeared to move.
Early animated movies were like flipbooks. They were costly and difficult to make. Each
picture had to be drawn separately by hand. A seven-minute cartoon used over 10,000
drawings. Eventually, new methods were invented that made cartoons easier and cheaper
to make. Today, animated cartoons are a big part of television.
2. COMICSComics are cartoons with several panels that tell a story. You can find comic strips in the
funny papers, a section of the daily newspapers. In some comics, each daily strip tells its
own story. In others, each strip is part of a continuing story. Popular comic strip
characters include Charlie Brown, his dog Snoopy, and their friends in Peanuts, and fussy
cat in Garfield.
The first comic books were just collections of newspaper comic strips. Comic books with
original material began to appear in the 1930s. they could tell longer and more detailed
stories than newspaper strips. Comic books became widely popular beginning in 1938
with the first appearance of the superhero character Superman.
New superheroes soon appeared in other comic books, including the Flash, Wonder
Woman, and Captain Marvel. Comic books in the 1960s introduceda whole new set of
superheroes, such as X-Men, Spiderman, and Fantastic Four. These newer superheroes
all had special powers, but they had problems in life like everyone else.
3. PUPPETS
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Puppets are figures made to look like people or animals. They are like dolls in some
ways. But unlike dolls, puppets perform before an audience. Sometimes, puppets act out
stories and teach lessons. Most of the time, puppets entertain us.
People control the movements of puppets. Some puppets are moved by the hand or
fingers. Other puppets are moved by strings, rods, or wires attached to them. The human
operator, or puppeteer, sometimes appears with the puppets. Many puppeteers stay
hidden.
Puppets come in many forms. Some puppets are small enough to fit over a finger or hand.
Other puppets are so big a person fits inside them. Big bird on Sesame Street is a human-
sized puppet.
Ventriloquists use puppets called dummies. Ventriloquists talk to their puppets. They
make it seem as if the puppets are talking back. But the ventriloquists are actually doing
the talking. They try to move their lips as little as possible.
Hand puppets fit over the hand, somewhat like a glove. People operate them by moving
their wrist and fingers. The forefinger usually operates the head. The thumb and the
second finger operate the two arms. Hand puppets are the easiest puppets to control.
When these puppets appear on a stage, the puppeteers usually work below the stage. They
lift the puppets up to the stage. The dummies of most ventriloquists are hand puppets.
They generally fit over the ventriloquists hand and arm.
String puppets are also called marionettes. They are made to move by strings attached to
their head, arms, and leg. During a performance, the puppeteers generally stand behind
the stage. They work the marionettes from above.