The earth is about 4,600 million years old. Modern man has lived on the earth for only 35,000 years, but during that time, we have changed our planet in many ways. Many of the things that we have done are good, but more are not good for the earth.

Water Pollution

A lot of people, birds and fish die each day because of water pollution. Factories have polluted the land and the water. As a result, many rivers and lakes are now dead.

Air Pollution

In big cities, factories, as well as cars, trucks and buses are the main causes of air pollution. Many people in cities now have serious health problems. For example, Mexico city used to be a beautiful sunny capital, but today it is always covered by thick brown clouds.

Soil Pollution

In order to have a good harvest, most of the farmers use chemicals too much in their fields. That’s bad for the soil. But this kind of pollution is difficult to stop.

Hope For The Future

These problems are very serious for our future, so all of us should do something to improve our environment. If we can stop pollution, our planet will become more and more beautiful and our health will be better. Let’s be greener people!

根据短文内容,选择正确答案。

1._____ have made the earth change a lot.

A.Human beings B.Animals

C.Plants D.People in other planets

2.There are _____ kinds of pollution in this passage.

A.two B.three C.four D.five

3._____ is a big problem now.

A.Pollution. B.Population.

C.Education D.Medical treatment

4.Which sentence is NOT true according to the passage?

A.Most of the things that we have done are good for our planet.

B.We must stop the factories from pouring waste water into the rivers and lakes.

C.Because of water pollution, many rivers and lakes are now dead.

D.Water pollution is very serious nowadays.

5.Which sentence is TRUE?

A.Though Mexico city is always covered by thick brown clouds, it’s still a beautiful sunny capital.

B.Air pollution can make people sick.

C.Now fewer farmers use chemicals in the fields.

D.Factories, cars, trucks and buses are the main causes of soil pollution.

Do you hope to do a lot of homework every evening? Are you interested in your English classes? Who do you want to teach you? Maybe you have lots of questions in your mind before school starts.

Well, I want to give you some good advice on these problems.

First, keep calm(平静). Don’t worry about all the problems you have. Put your heart into learning, and you can find something you are interested in. Do it actively.

Second, try your best to finish your homework quickly. Don’t spend a lot of time on it. Do more reading or writing in English. Think about the problems you have and solve them at once. Don’t stay up(熬夜) late, or you can’t study well the next day.

Third, invent something instead of copying or repeating. If you can remember the words in your way, you can tell your teachers you don’t like the way of copying them again and again. Be sure, you must pass the test. I think your teachers will agree with you. And they can give you some interesting work to do.

School is really a good place for us to learn. Believe in your teachers and yourself. You are the best one and you can do everything well.

1.The writer writes this article in order to (为了)_________.

A. ask students not to do their homework

B. tell students what a good teacher and a good school are

C. give students some good ways of learning

D. ask the students not to listen to the teacher carefully

2.How many pieces of advice does the writer give us?

A. Three B. Four C. Five D. Six

3. What does the writer tell students to do about their homework?

A. They should spend much time on it.

B. Do the homework quickly.

C. They should do more reading or writing in English.

D. They should stay up late doing their home-work.

4.What’s the third piece of advice about?

A. Study in your own way.

B. What kind of schoolwork is better for students.

C. How to get on well with the teachers.

D. How to get high marks.

5.According to (根据) the passage, students should believe in _________.

A. themselves and their parents

B. their parents and teachers

C. their classmates and their friends

D. themselves and their teachers

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