THE Earth is about 4600 million years old. Many of the things that we have done are good,
but many more are not good for the Earth.
Pollution is ②(地球上的一种严重问题). In big cities cars and buses have polluted the air.
Many people in cities now have very bad health problems.
③(工厂也对土地和水造成了污染). As a result, many rivers and lakes are now polluted.
All over the world, people have cut down millions and millions of trees. Did you know many
kinds of animals and plants are now disappearing (消失)? In particular, trees are very important
④because they produce oxygen (氧气) and control the climate.
Now, many people are beginning to take these problems seriously. Fhey are making wind
generators (发动机) and planting new trees. There is a group in our class that picks up the garbage
at school. Whether the weather is hot or cold we always do it. ⑤I think we are settinS a Sood
example to everyone else.
I hope, in the future, the sky can be clearer, the water cleaner, and the land greener. Then both
people and animals can have a greener Earth.
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2. 请把②处的汉语翻译成英语。
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3. 请把③处的汉语翻译成英语。
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4. 请把④处的画线部分翻译成汉语。
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5. 请把⑤处的画线句子翻译成汉语。
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2. a serious problem on the Earth / in the world
3. Factories have also polluted the land and the water.
4. 因为它们制造氧气并且控制气候。
5. 我想我们正在给其他人树立好榜样。
(答案不唯一)
Vitamins play an important role in people"s health. Without them, your body cannot work properly.
Vitamin A helps keep your skin healthy and helps your eyes get used to the darkness. Good sources
of vitamin A are deep yellow and dark green leafy fruits and vegetables, such as carrots and potatoes.
Vitamin B helps keep your need for food and its absorption (吸收) normal. Milk products grain products,
and meat are good sources of B vitamms.
Vitamin C is found in many fruits and vegetables, such as tomatoes, strawberries, and cabbages. People
who don"t get enough vitamin C over a long time injure easily.
Vitamin D is called "sunshine vitamin". Your own body makes it when you are in sunlight for any length
of time. It helps your body use minerals (矿物质) to build stronger bones and teeth. Oily fish is a good source
of vitamin D.
Vitamin E helps increase the immune function(免疫功能). It can be found in foods such as vegetable
oil, nuts, and seeds.
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3. You"d better _____
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119185046-94636.gif)
4. Why not _____?
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119185046-54049.gif)
5. You need to _____.
And my 3 habits 4 pretty 5 . I try to eat a lot of 6 , usually ten or eleven
times a week. I eat fruit every day and I drink milk every day. Of course, I love junk food,
too, but I try 7 it only once a week. Oh, I sleep nine hours every night. So you see, I
8 my health. And it 9 a big difference for my grades. Good food and exercise
help me 10 more.
( )1. A. am ( )2. A. from ( )3. A. eat ( )4. A. are ( )5. A. well ( )6. A. vegetables ( )7. A. to eat ( )8. A. look like ( )9. A. make ( )10. A. studied | B. is B. to B. to eat B. is B. good B. vegetable B. eat B. look at B. makes B. to study | C. are C. for C. eating C. become C. fine C. milks C. eating C. look for C. made C. studying | D. were D. of D. eats D. were D. beautiful D. milk D. ate D. look after D. to make D. studies |
阅读理解。 | |||
Everyone must go to bed early and get up early, or we won"t be healthy and clever. Is this true? Perhaps it is. The body must have enough sleep. Children of your age need ten hours" sleep every day. If you don"t go to bed early, you won"t have enough sleep. Then you can"t think properly and can"t do your work properly. You"ll not be clever. Some people go to bed late and get up late. This is not good for them. We must sleep at night when it is dark. The dark helps us to sleep soundly. When the daytime comes, we must get up. This is the time for exercise. If you lack exercise, the body becomes weak. Exercise keeps a strong body. Exercise helps the blood (血液) flow (流动) around inside the body. This is very important. Blood takes food to all parts of our body. The brain also needs blood. We think with our blood. If we keep our body healthy and take exercise, we can think better. | |||
1. If we want to be healthy and clever, we must go to bed _____. | |||
A. late and get up early B. early and get up late C. early and get up early D. late and get up late | |||
2. Children of your age need _____. | |||
A. ten hours" sleep B. nine hours" sleep C. twelve hours" sleep D. eleven hours" sleep | |||
3. The best time to sleep is when _____. | |||
A. daytime comes B. it is dark C. we are taking exercise D. it is late afternoon | |||
4. Exercise makes the body _____. | |||
A. weak B. clever C. active D. strong | |||
5. Exercise _____. | |||
A. makes more blood B. helps the blood to flow C. makes food for our blood D. makes our brain tired | |||
阅读理解。 | |||
In many parts of the world, people live to healthy old ages. What is the secret of their long lives? Three things are very important: fresh air, fresh food and a simple way of life. People living in Himalayas (喜马拉雅山) are famous for their long and healthy lives. They work near their homes in the clean mountains. They do not have buses, cars or trains. They do not sit all day in busy offices. They take more exercise and eat less food than people in the cities. They eat vegetables grown by themselves. They drink milk taken from their own cows. For years, the Hunzas of the Himalayas do not need doctors, for there is not much illness. They are happy and healthy people. | |||
1. Which is NOT the life of the people living in Himalayas? | |||
A. They work near their homes in the clean mountains. B. They take more exercise and eat more food than people in the cities. C. They eat vegetables grown by themselves. D. They drink milk taken from their own cows. | |||
2. Which one is NOT true about the people living in Himalayas? | |||
A. They live in a simple life in the mountains. B. They grow vegetables and milk cows themselves. C. When they"re ill, they do not go to see the doctors. D. They do not sit all day in busy offices. | |||
3. Which is NOT the secret of long life? | |||
A. Fresh air. B. Fresh food. C. A simple way of life. D. A simple way of eating. | |||
4. What are the Hunzas famous for? | |||
A. Vegetables. B. Milk. C. Food. D. Their long and healthy lives. | |||
5. They do not need doctors, for______. | |||
A. the doctors are not good B. there is not much illness C. there is no illness D. they are happy | |||
完形填空。 | |||
We all know that it is 1 to keep healthy. But not all people know 2 to keep healthy. After | |||