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英语阅读(二)
2006-2-17 21:23:30 点击数: 进入论坛

37.Ecperts advised people to open e-mails with attachments whose subjects begin with "FW".
38."New Love" will not spread if the user does not send mails through a Microsoft Outlook address book.
39.Microsoft Company is so much at a loss at the new virus that it takes no action at all.
40.The new virus is so destructive that the users can not find any solutions.

V. Directions:
Read Passages 3 and 4 fast and choose the correct answer by blackening the letter of the answer on your ANSWER SHEET.
(20 points,1 point for each)
Passage 3
1.If the population of Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system is capable of supporting life at present. One possible solution to the problem, however, bas recently been uggested by an American scientist, Professor Carl Sagan.

2.Sagan believes that before Earth's resources are completely exhausted it will be possible to change the atmosphere of Venus and so create a new world almost as large as Earth itself. The difficulty is that Venus is much hotter than Earth and there is only a tiny amount of water there.

3.Sagan proposes that algae, organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be bred in conditions similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets. Spaceships will then fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the carbon dioxide into oxygen and carbon.

4.When the algae have done their work, the atmosphere will become cooler but before man can set foot on Venus, it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall and in a few years something like Earth will be reproduced on Venus.

5.If the experiments are successful, life will become possible there but it will not be pleasant at first. When they go to Venus, the first colonists will have to take plenty of water with them and get used to days and nights lasting 60 Earth days. But there will also be some advantages. The colonists will live longer because their hearts will suffer less strain than on Earth. Apart from that, they will be exploring a new world while those still on Earth are living in closed, uncomfortable conditions. Perhaps it will be the only way to ensure the survival of the human race.

41.It will eventually become necessary for us to try to colonize another planet because _______.
A. scientists haven't developed new ways of feeding human beings
B. we will have used up all the oil that drives our cars

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