The human body is a living machine, and, like all machines, it needs "fuel" to supply it with energy. This is
provided by the food we eat. But how much do we need to stay healthy?
      The energy value of food is usually measured in calories (卡). A calorie is the amount of heat required to
raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the
picture shows. Also, the number of calories you use at any one moment normally depends on the activity you
are in. For example, you need more calories for standing than for sitting, more for running than for walking,
and so on.
      The energy in food is in the form of three kinds of chemical materials-carbohydrate (碳水化合物),
protein (蛋白质) and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8
Cal/gm. Each food contains different amounts of these materials, as the round pictures show.
(P= protein    C= carbohydrate     F=fat)

1. How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?

A. 55.
B. 175.
C. 325.
D. 275.

2. Which of the following contains the most amount of calories?

A. Milk.
B. Rice.
C. Peanuts.
D. Milk or peanuts.

3. Who needs the most amount of calories each day?

A. A woman.
B. An office worker.
C. A farmer.
D. A boy aged 16.

4. Which of following is True?　　

A. You need more calories for swimming than for mountain climbing.
B. A child aged 8 needs the same amount of calories every day as a man over 70 does.
C. A woman feeding baby needs over 4 times the amount of calories that a baby does.
D. Everyone needs the same amount of calories per day.

5. This passage mainly tells us ______.

A. all the energy is in food
B. the human body needs energy
C. the number of calories depends on your activity
D. we must only eat peanuts to get calories

      On Sunday, April 22 nd, people all over the world take time out to appreciate the earth that we all share. It's
Earth Day, a special day to learn about our planet and how to take care of it.
      On Earth Day, some people listen to speeches about the environment. Others help clean up their offices or
save water and electricity at home. Your parents may even decide to take a day off from driving their cars.
      The idea for Earth Day came from a U.S. Senator (参议员). He was worried about pollution and the health
of plants and animals. And the idea quickly caught on (流行起来). In 1970, the first Earth Day was celebrated.
More than 20 million people in cities all over the U.S. took part in it. Since then, Earth Day has been used to
educate people about their roles in taking care of our planet.
      Now, Earth Day has become a worldwide celebration. In 1990, two hundred million people from 140
countries took part in clean-ups, tree planting and other environmental events on Earth Day.

1. Earth Day is a special day to learn about our planet and             .

A. how to pay attention to the earth
B. how to learn English
C. how to go to the moon
D. how to make use of time

2. On Earth Day, we are told to             .

A. go shopping
B. save water and electricity at home
C. listen to music
D. drive our cars

3. The idea for Earth Day was given by a from America             .

A. farmer
B. teacher
C. scientist
D. senator

4. According to the passage, the first Earth Day was celebrated in              in            .

A. 1990, the U.S.A.
B. 1970, Beijing
C. 1970, America
D. 1990, America

5. Why has Earth Day become a worldwide celebration ? Because            .

A. Earth Day is on Sundays
B. we can sing songs on Earth Day
C. there are so many people on Earth Day
D. Earth Day can teach people how to take care of our planet

      Everyone knows that exercise is important. We all need to exercise. Doctors say it is good for us. It makes
your heart and body strong. Children who often exercise are more alert (灵活的). This means they do better
in tests and schoolwork than those who don't exercise.
     There are many ways to exercise. You can walk, run, swim, skate, or play ball games. Make sure you
exercise in the following ways: you have to like what you're doing. Exercise enough but not too much. It's best
to exercise twice each week. Thirty minutes each time is enough. Try all kinds of things until you find one, two
or even three sports that feel right for you.
     You can exercise at fitness centers (健身中心). They have a lot of equipment (设备) there. The equipment
will help exercise your arms, legs and other parts of your body to make you fit. Some people buy equipment for
their homes. But it is very expensive. 
     Exercising can be fun. Friends can exercise together at a fitness center, or they can play sports together.
How do you exercise?

1. In the passage, the writer tells us that we all need to _______.

A. drink
B. sleep
C. exercise
D. work

2. Which of the following sports is not mentioned in the passage?

A. Fishing.
B. Running.
C. Swimming.
D. Walking.

3. Where can we exercise according to the passage?

A. In the restaurants.
B. In the hospitals.
C. At fitness centers.
D. At the bus stops.

4. Why do we need to exercise?

A. Because we have nothing to do.
B. Because it makes us strong.
C. Because it's boring.
D. Because we can spend time.

5. Which of the following is not true according to the passage?

A. Some people buy equipment for their homes, but it's very expensive.
B. Children who often play sports do better in the schoolwork.
C. Try all kinds of things until you find the sports that are right for you.
D. It's best to exercise at least five times every week.

      Hundreds of years ago, life was much harder than it is today. People didn't have modern machines. There
was no modern medicine, either.
      Life today has brought new problems. One of the biggest is pollution. Water pollution has made our rivers
and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk louder and become
angry easily. Air pollution is the most serious kind of pollution. It is bad for all living things in the world.
      Many countries are making rules to fight pollution. We need to do many other things. We should put waste
things in the dustbins instead of on the ground. We can go to work by bus or with our friends in the same car.
If there are fewer people driving, less pollution will be made. Rules are not enough to solve the problems. Every
person must help to fight pollution.

1. Hundreds of years ago, life was much harder than it is today because _____.

A. there were not any modern machines
B. there was no modern medicine
C. there were not many people
D. both A and B

2. What is the most serious problem in today's life?

A. water pollution.
B. air pollution.
C. noise pollution.
D. pollution.

3. Why do people speak louder now than before?

A. people are stronger.
B. people are afraid of nothing.
C. there is much noise.
D. people have problem in hearing.

4. What does the writer ask readers to do?

A. each country should make its own rules to fight pollution.
B. every person must help to fight pollution.
C. all people should take buses.
D. we should control the population.

5. From the passage, we know that _____.

A. the pollution is not serious
B. today people don't talk in loud voice
C. we have to drink dirty water
D. people are making rules to control pollution

     What can you do to keep healthy? Perhaps for children, healthy eating is one of the most important things.
Here are some ideas about   1   to eat healthily. Having breakfast
     A good breakfast is very important to children. It's necessary to have it in the   2  . But some children often
go to school   3   breakfast, just because they want to sleep a little longer. Remember that a good breakfast will
help you study better. Having milk 
     "My dream is that all the Chinese children can get half a kilogram (公斤) of milk a day." The Chinese
Premier (总理) Wen Jiabao said this during his visit to a milk farm. Milk is also very important to children's
health. It makes children   4   stronger. It's better for you to   5   a glass of warm milk before going to bed.
That will help you have a good   6  . 
     Having healthy food is the most important. That means eating lots of different   7   of
food, especially fruits and vegetables. Don't eat too much chocolate   8   ice-cream. Some of you   9   eating
fast food, but in fact it is not good for your health. Try to eat healthy food as much as   10  . 
     Have healthy eating habits, and you will have a strong body.
1. __________   2. __________   3. __________   4. __________   5. __________
6. __________   7. __________   8. __________   9. __________   10. __________

    During the last ten years, our cities were full of cars, buses and trucks. Now the streets are completely
crowded and it is very difficult to drive a car along them. Drivers must stop at hundreds of traffic lights.
    What are our cities going to be like in ten or twenty years? Will many motorways (高速公路) be built
across them? With big motorways cutting across them, full of noisy, dirty cars and trucks, our cities are
going to be awful places. How can we solve the problem?
   There are some good ideas to reduce the use of private cars. In 1971, for example, the authorities (官方)
in Rome began an interesting experiment: passengers on the city buses did not have to pay for their tickets. 
   In Stockholm (斯德哥尔摩) there was another experiment: people paid very little for a season ticket to
travel on any bus, trolley bus, train or tram all over the city. In many cities now some streets are closed to
vehicles (机动车) and pedestrians are safe there. In London there is another experiment: part of the street
is for buses only, so the buses can travel fast. There are no cars or taxis in front of them.

1. What does the writer worry about in a big city? The ___.

A. number of traffic lights
B. shortage of buses
C. lack of motorways
D. traffic congestion (拥挤)

2. Which city once experimented on a completely free bus service? ___.

A. London
B. Paris
C. Rome
D. Stockholm

3. Which city once experimented on a very cheap bus service? ___.

A. London
B. Stockholm
C. Rome
D. None of the above

4. In many cities pedestrians are much safer because ___.

A. no traffic is allowed in some streets
B. traffic is computer controlled
C. cars move very slowly
D. only one way streets are open to traffic

5. In Chinese "pedestrians" means___.

A. 司机
B. 行人
C. 旅客
D. 动物

      If you travel by a  1   across the center of Africa or South America, you fly over forests for thousands
of kilometers. These great forests are the oceans of t  2  . There are thousands and thousands of kinds of
plants and a  3  .
      However, the world's forests are getting s  4   all the time. In many places, we're cutting down the trees
because we need wood and we need more farmland. Some people say that t  5   will not be any forest like
these in 30 years. What will happen if they d  6  ?
      If we cut down our forests, a lot of plants and animals will disappear from the w  7  . In a lot of places
the new farmland will soon look like the old desert. Crops will not grow there. It will not rain very often, and the
weather will get very hot. Perhaps the climate (气候) of the world will c  8  . This will be d  9   for
everyone in the world. That's w  10   we must take care of our forests.
1.                  2.                 3.                  4.                 5.                 
6.                  7.                 8.                  9.                10.              

                    
1. Coco eats a lot of fresh fruit and vegetables. She thinks they're healthy and they taste good. She's not keen
    (酷爱) on sweet things and she doesn't eat much fatty food. ________
2. Twins love sweet things like cakes and chocolates. They know this kind of food isn't good for them, but they
    can't resist them! ________
3. Jay Chou says, "I'm afraid I'm keen on junk food-you know, quick, unhealthy food like hamburgers or chips.
    A lot of people think it's revolting ( 厌恶的), but I like it. I don't eat many fresh vegetables." ________
4. Jackie Chan says, "Crisps are my favorite, I suppose. I know they're bad for you, but they are delicious
    especially cheese and onion ones." _________
5. Please write down two kinds of healthy food: ___________________________.

     No air means death. Although we can't see it, there is air around us. So air is everything and it gives life to
every living thing. Bad air makes people ill. We must have fresh air to keep us in good health.
     In the city, there are a great many people and there are too many cars running on the roads. The gas which
the cars give out is full of poison (有毒物). Every day we breathe it in again and again. This makes us feel sick.?  Besides cars, there are many factories, too. From chimneys (烟囱) of these factories, the smoke is usually
black or grey. This kind of smoke, when mixed with the air, is dangerous to our health. It is because the smoke
contains many poisonous solids and gases. In order to keep us healthy, we have to go out to the countryside to
breathe more fresh air. We can also climb up hills to get the fresh air.?
1. We can't              if there is no air.?
2. People will have good health only when they breathe             .?
3. The poisonous gas can make people             .?
4. The              from the chimneys of the factories is usually black or grey.
5. We should often go to the               to breathe more fresh air.