题目内容
People didn't discover this new plant ________ 1943．
- A.by
- B.in
- C.until
- D.from
C
解析：
not…until“直到……才”。
解析：
not…until“直到……才”。
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相关题目
In the 13th 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 15th century. However, people in China began to use paper money in the 7th 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.
【小题1】When he was in China, Marco Polo __________ .
【小题2】 People in western countries first used paper money in the _________ century.
【小题3】 About ________ tons of paper are thrown away every day in our city.
【小题4】 Which of the following is the way of saving paper?
【小题5】Which is the best title（题目） of the passage?
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.
【小题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 |
| A．17th | B．15th | C．13th | D．7th |
| A．1,700 | B．2,000 | C．2,800 | D．48,000 |
| 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. |
| A．Saving paper. | B．The history of paper. |
| C．Cotton handkerchiefs back again. | D．Cai Lun, the great inventor. |
Dear Linda,
I have been in England three months now, and it’s my first time to be here. I hope you don't think I've forgotten you. There have been so many places to see and so many things to do that I've not had much time for writing letters.
I shall soon be starting my studies at King's College. So far I've been learning about England and British ways of living. I won't tell you about London. There are plenty of books you can read and plenty of pictures you can look at. I'm sure you'll be more interested to know what I think about the life here.
I find some of the customs (风俗) new and interesting. People here do not shake hands as much as we do in Europe. During the first few weeks I was often surprised because people did not put out their hands when I met them. Men raise their hats to women but not to each other.
Yours
Alice
【小题1】The writer came to London from _________.
| A．Asia | B．Europe | C．America | D．Africa |
| A．has never been to England before |
| B．came to England just now |
| C．came to England three months ago |
| D．will come to England in three months |
| A．not written any letters |
| B．much time to write letters |
| C．no time to write letters |
| D．a little time to write letters |
| A．study |
| B．make a living |
| C．learn British ways of living |
| D．learn about life there |
| A．do not often shake hands with friends when they meet |
| B．often shake hands with friends when they meet |
| C．raise their hats to all friends when they meet |
| D．do not raise their hats to friends when they meet |