摘要: 表示“如果 1)providing/ provided 2) supposing

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  Space is a dangerous place not only because of meteors(流星), but also because of rays from the sun and other stars.The atmosphere acts as our protective blanket on the earth.Light gets through and this is essential for plants to make the food we eat.Heat also makes our environment endurable.Various kinds of rays come through the air from outer space.

  Radiation is the greatest known danger to explorers in space.The unit of radiation is called rem.Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged.The trouble is that it is extremely difficult to be sure about radiation damage.A person may feel perfectly well, but the cells of his or her organs may be damaged and this will not be discovered until the birth of deformed(畸形的)children or even grandchildren.Members of the Apollo flights had to cross belts of high radiation and during the outward and return journeys, the Apollo crew accumulated a large amount of radiation.So far, no dangerous amounts of radiation have been reported, but the Apollo members have been quite short.We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory.Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.

  Something is better than nothing.聊胜于无。L

阅读短文,并根据文章内容,判断下列句子的正确的用“T”表示,错误的用“F”表示。

(1)

The atmosphere would prevent light that plants need.

(  )

(2)

The greatest danger to explorers in space is meteors.

(  )

(3)

The harm of radiation may be seen after a long period.

(  )

(4)

Members of the Apollo flights got lots of radiation in outer space.

(  )

(5)

The harm radiation had done to the Apollo members seems unknown.

(  )

(6)

The damage done by radiation can’t be decreased by drugs right now.

(  )
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完成句子 (共10小题;每小题l分,共10分)

1. 她是被宠坏了,但又能怎么样呢?她毕竟还是个孩子。

She is quite __________ but what can you do ? _____ ________ she is a child.

2. 他喜欢开玩笑,因此在同学中很有人缘。

He likes to _________ _______, so he is very _______ __________ his classmates.

3. 他躲在门后, 直到脚步声逐渐消失。

He ___________  ____________ the door until the footsteps had ________  ___________ .

4. 不要以貌取人,而应该看他(她)讲话和做事的方式。

Don’t judge a person by his or her _______, but look at ______ _____ he or she speaks or acts.

5. 我一直在看笔记, 这样一来我就不会忘记我要说的话。

I kept ___________  ____________ my notes ________ ______ I wouldn’t forget what I wanted to say.

6. 没有人知道这样的风俗是何时形成的。

No one knows when such a custom first __________  __________  ___________.

7. 如果你能开车顺便带我一下, 我会表示感激。 我的车在回家的路上坏了。

I’d appreciate ______ if you can give me a lift. My car ______ ______ on the way back home.

8.  中国的新年在一月底和二月底之间, 取决于阴历。

The date of the Chinese New Year falls somewhere between late January and late February, _______ _________ the __________ calendar.

9.万圣节已经变成了开联欢的日子, 孩子们装扮成巫婆做各种特别的游戏。

Halloween has become a time for parties, ________ children __________ _________ _________ witches and play all kinds of special games.

10. 游客们说他们从来没有梦想到有这么美的风景。

The visitors said that they had never ________ _________ _________ _________ such a beautiful scenery.

 

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