trees we cut down, animals can survive. [ ] A. the more, the less B. the less, the more C. the more, the fewer D. the fewer, the less 题目和参考答案——青夏教育精英家教网—

题目内容

_____ trees we cut down, _____ animals can survive.

[ ]

A. the more, the less
B. the less, the more
C. the more, the fewer
D. the fewer, the less

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相关题目

We know that trees are useful in our everyday life. They 1 us many things, such as wood, oxygen(氧气), rubber, medicines and many other things. They can 2 tell us a lot about our climate. The following are the reasons. If you cut across a tree, you can 3 that it has many rings. Most trees grow one 4 ring every year. Because of this reason, we know 5 a tree is. A tree over a hundred years old means that it has more than a hundred 6 . When the climate is dry(干燥的) or very cold, the trees do not grow very much and their rings are usually 7 . When it is wet and 8 , the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the 9 changed suddenly. If we look at the rings on the trees, we can 10 about the climate for a hundred years. We can see how our climate is changing today.

In 1620, about half the USA was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. China doesn’t want to copy the USA’s example. We’re planting more and more trees. We’ve built the " Great Green Wall" of trees across northern part of our country. The Great Green Wall is 7,000 kilometres long, and between 400 and 1,700 kilometres wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. More "Great Green Walls" are needed. Trees must be grown all over the world. Great Green Walls will make the world better.
根据短文内容，选择正确答案。
【小题1】The Great Green Wall in China is ______.

A．7,000 kilometers long	B．1,700 kilometers long
C．7,000 meters long	D．400 kilometers long

【小题2】Trees must be grown in ______.

A．China

B．the USA

C．some countries

D．every part of the world

【小题3】Which of the following statements is not true?

A．The Great Green Wall will stop wind from blowing the earth away.

B．The Great Green Wall will make our life better.

C．We don’t need to plant more trees.

D．The Great Green Wall will stop the sand moving towards the rich farmland.

In the 13^th century, the famous Italian traveler, Marco Polo, traveled a long way to China. During his stay in China, he saw many wonderful things. One of the things he discovered was that the Chinese used paper money. In Western countries, people did not use paper money until the 15^th century. However, people in China began to use paper money in the 7^th century.
A Chinese man called Cai Lun invented paper almost 2000 years ago. He made it from wood. He took the wood from trees and made it into paper. He then put these pieces of paper together and made them into a book.
Now paper still comes from trees. We use a lot of paper every day. If we keep on wasting so much paper, there will not be any trees left on the earth. If there are no trees, there will be no paper. Every day, people throw away about 2,800 tons of paper in our city. It takes 17 trees to make one ton of paper. This means that we are cutting nearly 48,000 trees every day. Since it takes more than 10 years for a tree to grow, we must start using less paper now. If we don’t, we will not give enough time to grow more trees to take the place of those we use for paper.
So how can we save paper? We can use both sides of every piece of paper, especially then we are making notes. We can choose drinks in bottles instead of those in paper packets. We can also use cotton handkerchief and not paper ones. When we go shopping, we can use fewer paper bags. If the shop assistant does give us a paper, we can save it and reuse it later.
Everyone can help to save paper. If we all think carefully, we can help protect trees. But we should do it now, before it is too late.
【小题1】 When he was in China, Marco Polo ________.

A．saw many wonderful things

B．read a lot of books

C．discovered Cai Lun invented paper

D．learned to make paper

【小题2】About ________ tons of paper are thrown away every day in our city.

【小题3】Which of the following is NOT the way of saving paper?

A．To use cotton handkerchiefs instead of paper ones.

B．To grow more trees.

C．To use both sides of very piece of paper.

D．To use the paper bags from shops more than once.

【小题4】Which of the following is NOT true?

A．About 48,000 trees can be used to make 2,800 tons of paper.

B．If we keep on wasting paper, we will have no paper to use.

C．The Chinese used paper money much earlier than the people in western countries.

D．It is never too late to plant trees for paper.

【小题5】Which is the best title of the passages?

A．Cotton Handkerchiefs Back Again

B．Cai Lun, the Great Inventor

C．Saving Paper

D．The history of Paper

Today we can see that many people are cutting down the trees in the forests. A lot of lands have become deserts. If we read newspapers, we’ll learn that the forests on the earth are getting smaller . We are cutting down large numbers of trees we need wood and farmland. Some scientists say that there will not be any great forests 20 or 30 years.

What will happen if the forests disappear? A lot of plants will die and the animals will

their homes. In many places the new farmland will soon look the old desert. Crops will not grow there. There won’t be enough , and the weather will get hot and dry. If the climate of the earth changes, life will be for everyone. Our living environment will become . More and more rich farmland will disappear. We will suffer a lot from both droughts (干旱) and floods.

It’s our duty the forests well. Everyone should try his best to make a contribution (贡献) to taking care of the forests. Stop cutting down the trees and make the world greener!

1.A. rich B. low C. lonely

2.A. on time B. all the time C. in time

3.A. or B. so C. because

4.A. at B. on C. in

5.A. find B. build C. lose

6.A. up B. like C. at

7.A. snow B. rain C. wind

8.A. easy B. happy C. hard

9.A. better and better B. worse and worse C. bigger and bigger

10.A. to protect B. do C. to do

In 1620, about half the U.S.A. was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. China doesn’t want to copy the U.S.A.’s example. We’re planting more and more trees. We’ve built the “Great Green Wall” of trees across northern part of our country. The Great Green Wall is 7,000 kilometers long, and between 400 and 1,700 kilometers wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. More “Great Green Walls” are needed. Trees must be grown all over the world. Great Green Walls will make the world better.

1. In 1620, about ______ the USA was covered by forests.

A．a third

B．half

C．two thirds

D．a fourth

2. A lot of good land has gone with ______.

A．sand

B．water

C．wind

D．forests

3. The Great Green Wall in China is ______ long.

A．7,000 kilometers	B．1,700 kilometers
C．7,000 meters	D．400 kilometers

4. Trees must be grown in ______.

A．China	B．the USA
C．some countries	D．every part of the world

5. ______ will make the world better.

A．The Great Wall	B．Tall buildings
C．Great Green Walls	D．Flowers and grass

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