1、大学英语六级（听力）练习试卷 13及答案与解析 Section C Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to
2、43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 0 Space is a dangerous place, not only because of meteors (流星 ) but also beca
3、use of rays from the sun and other stars. The【 26】 again acts as our protective blanket on earth. Light gets through, and this is【 27】 for plants to make the food which we eat. Heat, too, makes our environment【 28】 Various kinds of rays come through the air from outer space, but enormous quantities
4、of radiation from the sun are【 29】 off. As soon as men leave the atmosphere they are exposed to this【 30】 and their spacesuits or the walls of their spacecraft, if they are inside, do【 31】 a lot of radiation damage. Radiation is the greatest known danger to【 32】 in space. The unit of radiation is ca
5、lled “rem“. Scientists have reason to think that a man can put up with far more radiation than 0.1 rein without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is【 33】 difficult to be sure about radiation damage 【 34】 , and this will not be discovered until the birth
6、of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high amounts of reins.【 35】 , 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 m
7、ight help to decrease the damage done by radiation,【 36】 大学英语六级（听力）练习试卷 13答案与解析 Section C Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you
8、 are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 0 【听力原文】 Space is a d
9、angerous place, not only because of meteors (流星 ) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable Variou
10、s kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation and their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation d
11、amage. 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 rein without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely
12、 difficult to be sure about radiation damage a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high amounts of
13、reins. So far, no dangerous amounts of radiation have been reported, but the Apollo missions 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 de
14、crease the damage done by radiation, but no really effective ones have been found so far 1 【正确答案】 atmosphere 2 【正确答案】 essential 3 【正确答案】 endurable 4 【正确答案】 screened 5 【正确答案】 radiation 6 【正确答案】 prevent 7 【正确答案】 explorers 8 【正确答案】 extremely 9 【正确 答案】 a person may feel perfectly well, but the cells of his or her sex organs may be damaged 10 【正确答案】 So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short 11 【正确答案】 but no really effective ones have been found so far
