Passage 2
Not so long ago it was assumed that the dangers man would meet in space would be 11 , the main ones being radiation and the danger of being hit by meteors. It is perhaps 12 remembering that less than two centuries ago, the dangers of train travel seemed 13 terrible. A man would certainly die, it was thought, if carried along at a speed of 30 m. p. h.
There are two sorts of radiation man must fear in space. The first is from the sun, which is 14 The second, less harmful form, comes from the so-called Van Allen Belts. These two kinds of radiation are as far as about 1,500 miles away from the earth. Neither of these forms of 15 is dangerous to us on the earth, since we are protected by our atmosphere. Specifically, it is that part of our atmosphere 16 as the ozonosphere which protects us. This is a belt of the chemical ozone between 12 and 21 miles from the 17 which absorbs all the radiation.
Once outside the atmosphere, however, man is no longer protected, and radiation can be harmful in a number of ways. A distinction must be drawn between the short and long-term effects of radiation. The 18 are merely unpleasant, but just because an astronaut 19 from a journey in space does
not seem to have been greatly harmed, we cannot assume that he is safe. The long-term effects can be extremely serious, even 20 to death.
A. guiding B. terrible C. leading D. worthy
E. known F. similarly G. deadly H. projection
I. returning J. formal K. radiation L. worth
M. ground N. meanwhile O. former
11. B 12. L 13. F 14. G 15. K 16. E 17. M 18. O 19. I 20. C
希望考生能够认认真真准备,争取能够顺利通过考试。
今年情人节送什么?过个“绿色”情人节吧
患难见真情
[希腊神话]雅典娜的神像
盘点2011年全球最具影响力的话题
伊索寓言之狼与鹭鸶
聪明的熊猫
七只乌鸦
张国立之子张默涉嫌吸毒被北京警方逮捕
英语故事:瞎子点灯
这些面经你别信:找工作的十大误区(双语)
Facebook欲涉足招聘行业:社交巨头IPO后新动作(双语)
微博实名制即将实施
双语:坏习惯快走开 8条建议让你告别自己的陋习
双语阅读:中国古代四大美女的政治胭脂
清明节双语介绍
清明节起源(双语)
为时尚 为环保:请你穿上秋裤(双语)
哈利波特一《哈利波特与魔法石》
伊索寓言:狼和小羊
A Handful of Clay 一撮黏土
盘点2011-《时代》年度十大最糟流行瞬间
一个人的情人节:享受单身的理由
让你大跌眼镜的欧洲十大雷人小国(组图)
人与同行的狮子
狐狸和乌鸦
情人节怎么过?用最少的钱得最多的浪漫(双语)
双语阅读:为时尚 为环保:请你穿上秋裤(双语)
你染上春节“节日病”了吗?
荷马墓上的一朵玫瑰
情人节约会指南——爱意表达小贴士
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |