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Now more water is needed. The problem is: Can we avoid (避免) a serious water shortage later on? First, we should all learn how to save water. Secondly, we should find out the ways to reuse it . Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers . But it can be used again. Even if every large city reused its water, still there would not be enough. What could people turn to next?
The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it's already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we'll be in no danger of drying up.
小题1:The world is thirsty because ________.
| A．3/4 of the earth is covered with water |
| B．we have enough sea water to use directly |
| C．we haven't used all the water in rivers and lakes |
| D．about 97% of water on the earth can't be drunk or used for watering plants directly |
| A．3% of water on the earth is in rivers and lakes. |
| B．75% of water on the earth is the sea. |
| C．97% of the earth is covered with water. |
| D．3% of water on the earth is sea water. |
| A．if every city reuses its water, we'll be in no danger of drying up |
| B．man can only drink and use about 25% of water on the earth |
| C．today in most large cities water is used only once |
| D．water can be used only once |
| A．Save water and try to make good use of the water in rivers and lakes. |
| B．Don't pollute water and keep all rivers and lakes clean. |
| C．Make dirty water clean and then reuse it. |
| D．Try to find a cheaper way to get the salt out of the sea water. |
| A．The Sea Water | B．How to Save Water |
| C．The Thirsty World | D．The Polluted Water |
As space science develops, man has learned more and more about space. Space is not only amazing but also dangerous. While working in space, spacemen are facing danger as well as success.
Scientists have found out that radiation(辐射) is the greatest danger to spacemen in space. When spacemen are working in space, they are. in danger of radiation from the sun and other stars, which is bad for their health. The damage(危害) done by radiation won't be discovered until their children or even grandchildren are born. Some special medicine may work a little, but no really helpful medicine has been.
Space junk(垃圾) is also thought a great danger to spacemen. It's reported that there are 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space junk. An explosion(爆炸) in 1996 made a cloud of 300,000.fragments, each at least 4mm in size, and even a small piece of these knocked against a spaceship window and did some damage. Scientists are watching and reporting any possible danger all the time. They are working on helpful ways to do with space junk.
Although space is really dangerous, it interests everyone on the earth. In the near future, it may become usual for people to spend a few days in a space hotel. We may even choose to leave the earth and live m space in a few years. So we should care for space and do something to help improve the space environment.
51．_________shows the man-made things in Space in the correct way.
 |
52. Space junk and radiation in space are dangerous to______.
A. spacemen working in space B. people only on the earth
C. all the people except children D. All the spacemen
53. The underlined word “fragments” means “_______”.
A.碎片 B.泡沫 C.烟雾 D.粉末
54. Which of the following about the passage is TRUE'?
A. The spaceships, are not dangerous in space.
B. Every one of us can make a trip to space now.
C. Scientists have found out ways to solve any problem in space.
D. The passage tells us that radiation in space comes from the sun and other stars.
55. The best title of the passage is______.
A. Space Radiation B. Space Danger C. Space Junk D. Space explosion
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阅读下面短文，从各小题所给的四个选项中，选出一个最佳答案。
Here is the nine o'clock news.
“Prime Minister(总理) Abdul Krim of Tyrea has said that the danger of war(战争) in the Middle East(中东) is greater now than for the past two years. His country does not want war, he says, but the Tyrean people have waited too long for an end to the troubles with their neighbours. If war comes, says Mr Krim, Tyrea will be ready.
“Ben Kitson, the writer of stories and plays for children, has died at his home in California. Mr Kitson was 82. His most famous book of stories, The Gentleman's House, sells all over the world, in more than twenty-five languages.
“Policeman in New York have stopped work. Their leader(领导), Mr Paulo Angeli, says that they will return to work only when they receive more money for working long hours and doing what Mr Angeli calls “the most dangerous job in the city.”
“It has been a good year on the farm. The warm, wet spring, and the fine summer have been very good for all kinds of food plants. This means that fruit and vegetables will cost less in the shops this year.”
“And now it's time for ‘Morning Music.’”
1．Abdul Krim has said that ________.
[ ]
A．there is no more danger of war
B．there is more danger of war now
C．the danger of war passed two years ago
D．there was a war two years ago
2．The Tyrean people ________.
[ ]
A．are ready and waiting for war
B．are ready to wait another war
C．do not want war, but will be ready if it comes
D．are a great danger in the Middle East
3．Mr Ben Kitson wrote ________.
[ ]
A．children's stories and plays
B．in more than twenty-five languages
C．82 stories about his hometown
D．books, then sold them all over the world
4．Mr Paulo Angeli is ________.
[ ]
A．the most dangerous policeman in New York
B．a policeman who receives the most money in New York
C．the leader of the New York City policemen
D．a policeman, and the leader of New York City
5．Because food plants have done well, ________.
[ ]
A．fruit and vegetables will cost less this year
B．there will be a warm, wet spring and a fine summer
C．food will cost less than it did in the spring
D．plants will cost less this year
查看习题详情和答案>>A: Hi! Lu Ming. I’m really glad to hear that you’ve done so well in the college entrance examination. I 小题1: .
B: Thank you!
A: With such good results, you will be able to get into Beijing University, I’m sure.
小题2:
B: I will study Medicine. 小题3:
A: It’s a good major(专业). Next year I will finish middle school. 小题4:
B: So from now on , you must make full use of your time to get well prepared（准备） for next year’s college entrance examination.
A: I’ll try my best to do as well as you have done.
B: 小题5:
A: Thanks a lot!
| A．Congratulations. |
| B．What’s your job? |
| C．I’m sure you will! |
| D．You must do better than I’ve done. |
F. And I want very much to enter Tsinghua University.
G. It has been my dream to become a doctor all these years.
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