Those trees. A.is notB.not isC.are notD.not are 题目和参考答案——青夏教育精英家教网—

In the 13th century, the 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 15th century . However , people in China began to use paper money in the 7th century .
A Chinese man called CaiLun 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 on the earth . If there are no trees , there will be no paper . Every day , people throw away about 2800 tons (吨) of paper in our city . It takes 17 trees to make one ton of paper . This means that we are cutting nearly 48000 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 have 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 when we are making notes .We can choose drinks in bottles instead of those in paper packets . We can also use cotton handkerchiefs (手帕) and not paper ones . When we go shopping , we can use fewer paper bags . If the shop assistant does give us a paper bag, 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．Saving Paper	B．The history of Paper
C．Cotton Handkerchiefs Back Again	D．CaiLun , the Great Inventor

It may seem easy to say that plants and animals are different. Any child can tell the difference between a tree and a dog. But those differences are far deeper than just what they look like. The cells (细胞) that plants are made up of are different. In other words, the cell wall of plants has something special.

First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is like.

The cell wall of a plant is on the outside of the cell membrane (膜). It is usually hard and cannot be bent easily, but the degree of flexibility (韧性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than? cells on a leaf.

Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell. More importantly, they control the water? that goes in and out. Plants must have good water controlling systems (系统), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so being able to control water is very important.

So there you have it , what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell wails requires further study and research.

1.From the first two paragraphs we can find that _____.

A. all plants have a ceil wall?????????????

B. plant cells and animal cells are the same

C. different kinds of plant have different cell walls

D. there are no differences between the cells of a tree and a dog

2.The underlined word "bent" in the passage is the closest in meaning to _____.

A. 变形的 ?? B. 防水的 ? C. 太阳灼伤的 ??? D. 表皮破损的

3.Cells in the trunk of a tree are _____ those on a leaf.

A. as flexible as ????????? B. not so flexible as

C. more important than ?? D. less important than

4.What is the most important use of a plant cell wall?

A. To protect the plant. ???? B. To provide support.

C. To move chemicals and wastes. D. To control the water.

There was a lovely vegetable patch (菜园). A large tree grew there. Both the patch and the tree gave the place a wonderful look, and they were the pride of the gardener. But no one knew that the vegetables and the tree couldn’t stand (忍受) each other. The vegetables hated the tree’s shadow (阴影), because it left them only just enough light to live. The tree, on the other hand, hated the vegetables because they drank nearly all the water, leaving him just enough to live.

The situation became so serious that the vegetables decided to use up all the water in the ground so that the tree would die. The tree answered back by not protecting the vegetables from the hot sun, so they began to dry up. Soon the vegetables were really weak, and the tree was drying up.

The gardener wondered why and stopped watering them. When he did that, both the tree and the vegetables realized that it was better to help each other. They learned how to live in harmony with those around them. So they decided to work together, using both the shade and the water to grow well. After seeing how well they were doing, the gardener gave the best care to his vegetable patch, watering and fertilizing (施肥) it better than any other patch for miles around.

1.Why didn’t the vegetables and the tree get on well with each other?

A. Because the vegetables wanted more light.

B. Because the tree drank almost all the water.

C. Because the vegetables weren’t the pride of the gardener.

D. Because the vegetables didn’t look as wonderful as the tree.

2.From the passage we know .

A. the vegetables were sorry to see the tree drying up

B. the gardener was very angry with the vegetables and the tree

C. the gardener didn’t know what was happening in the patch at first

D. the tree didn’t know how important the sun was to the vegetables

3.The underlined phrase “in harmony” means “ ” in Chinese.

A. 长久地 B. 小心地 C. 有效地 D. 和谐地

4.Of the following, which order is right according to the story?

① The gardener worked on the patch even harder than before.

② The gardener stopped watering the vegetables and the tree.

③ The vegetables decided to use up all the water in the ground.

④ The tree and the vegetables realized the importance of helping each other.

A. ③②④① B. ④②③① C. ②①④③ D. ①③④②

5.The passage is mainly about .

A. why the sunlight and water were very important

B. how the gardener took care of his vegetable patch

C. why the gardener was proud of his vegetable patch

D. what happened between the vegetables and the tree

I sat down to read under an old tree in the park. I felt my life was 36 , because my whole world was dark.

A young 37 ran up to me, out of breath（气喘吁吁）. He stood right before me with his head down and said 38 , “Look what I found!” In his hand was a flower, and what a poor sight! The flower was dry and 39 . I gave him a small smile and then turned my eyes away so that he could take his dry flower and go off to play.

40 , he sat next to my side and placed the flower to his 41 and said in surprise, “It smells sweet and it’s beautiful, too. That’s 42 I picked it. Here, it’s for you.” The flower before me was dead. But I knew I must 43 it, or he might never leave. So I accepted(接受) the flower, and replied, “This is just what I 44 .” Just then, for the first time I noticed that the boy could not 45 －he was blind.

Tears came down my face as I 46 him for picking the best one. “You’re welcome.” he smiled, and then ran off to 47 . I sat there and wondered how he was able to learn about my pain.

Through the eyes of a blind child, 48 I could see the problem was not with the world; the problem was me. And for all those years I myself had been 49 . I decided to see the beauty in life, and 50 every second of my life. And then I held that dry flower up to my nose and breathed in the smell of a beautiful rose.

1.

A．hopeless

B．colorful

C．simple

D．wonderful

2.

A．lady

B．man

C．boy

D．girl

3.

A．sadly

B．strictly

C．angrily

D．excitedly

4.

A．dead

B．fresh

C．alive

D．heavy

5.

A．So

B．Or

C．However

D．And

6.

A．head

B．nose

C．ear

D．neck

7.

A．how

B．when

C．where

D．why

8.

A．buy

B．sell

C．accept

D．break

9.

A．admire

B．dislike

C．want

D．have

10.

A．cry

B．speak

C．smile

D．see

11.

A．forgave

B．thanked

C．paid

D．hated

12.

A．sleep

B．study

C．dance

D．play

13.

A．at most

B．at times

C．at first

D．at last

14.

A．cheerful

B．useful

C．blind

D．deaf

15.

A．waste

B．enjoy

C．lose

D．forget

In the 13^th century, the famous Indian traveller, Marco Polo, travelled a long way to China. He saw many wonderful things. One of the things he discovered was that 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 2,000 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 have 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 when we are making notes. We can also use cotton handkerchiefs（手帕） and paper ones. When we go shopping, we can use fewer paper bags. If the shop assistant does give us a paper bag, we can save it and refuse（拒绝）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.

1.When he was in China, Marco Polo __________ .

A. discovered Cai Lun invented paper B. learned to make paper

C. saw many wonderful things D. read a lot of books

2. People in western countries first used paper money in the _________ century.

A. 17^th B. 15^th C. 13^th D. 7^th

3. About ________ tons of paper are thrown away every day in our city.

A. 1,700 B. 2,000 C. 2,800 D. 48,000

4. Which of the following is the way of saving paper?

A. To use both sides of every piece of paper.

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

C. To use cotton handkerchiefs and paper ones. D. All of the above.

5.Which is the best title（题目） of the passage?

A. Saving paper. B. The history of paper.

C. Cotton handkerchiefs back again. D. Cai Lun, the great inventor.

Those ________ trees.

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