六级听力真题

Section C
Compound Dictation
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The (36) ______ again acts as our protective blanket on earth. Light gets through, and this is (37) ______ for plants to make the food which we eat. Heat, too, makes our environment (38) ______ . Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are (39) ______ off. As soon as men leave the atmosphere they are exposed to this (40) ______ and their spacesuits or the walls of their spacecraft, if they are inside, do (41) ______ a lot of radiation damage.
Radiation is the greatest known danger to (42) ______ 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 figure of 60 rems has been agreed on. The trouble is that it is (43) ______ difficult to be sure about radiation damage-(44) ___________________________________________________________ , 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 rems. (45) __________________________________________________________ , 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, (46) _____________________________________________________ .

答案解析

答案解析：

36. 答案：atmosphere
解析：预览全文，知道是与外太空有关。此空位于句子的主语部分，并从谓语的第三人称单数形式得知这里填的是单数名词或不可数名词。atmosphere意为“大气层”，注意其拼写。
37. 答案：essential
解析：此空在系动词“is”后面，可推测这里应该填形容词或过去分词作表语。根据前后文大意，不难听出这里是essential，注意要双写s。
38. 答案：endurable
解析：这里的句式是“A makes B...”（A使得B……），据此可知空格处可能是形容词或动词原形。这里听到的是endurable“可以忍受的”，注意这里头一个e不要拼成i。
39. 答案：screened
解析：空格处在“are”后面，句子谓语不完整，可知这里应该是被动语态，填一个动词过去分词。screen off“挡开，隔开”，注意双写e。
40. 答案：radiation
解析：前文说到大气层隔开了大量的太阳辐射，那么当人去到外太空，自然就会暴露在这些辐射当中。radiation在前句中就已出现，听到后照抄过来就行了。
41. 答案：prevent
解析：太空服和宇宙飞船都有防辐射的基本功能，据此常识，不难听出这里的“prevent”，注意空格前有个起强调作用的“do”，因此用动词原形。
42. 答案：explorers
解析：此空位于介词“to”之后，可知应填名词或名词性的成分；根据前面讲到的“太空服和宇宙飞船可以阻隔辐射以使在太空中的人免受其害”，不难听出这里的explorers，注意要用复数。
43. 答案：extremely
解析：此空位于系动词“is”和形容词之间，推测这里应填入一个副词，用以修饰“difficult”，表程度。注意extremely的拼写，不要漏写里面的e。
44. 标准答案：a person may feel perfectly well, but the cells of his or her sex organs may be damaged
听音关键：feel well, cells, sex organs, damage
答案重构：one may feel quite well while some cells of sex organs may hurt/be harmed
画龙点睛：根据前后文的大意，不难知道这里说的是辐射损害的隐秘性。浏览后面一句，可推知辐射会对人的生殖系统等方面造成损害，所以听音时不难抓住关键词。
45. 标准答案：So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short
听音关键：no, dangerous, radiation, report, Apollo missions, short
答案重构：We haven't found any dangerous radiation yet, but the Apollo missions have been quite short
画龙点睛：这里要听的部分有两个分句，这两个分句的句式均较简单，而像radiation和Apollo missions等关键词均在前文已有提及，仔细倾听，不难写出答案。
46. 标准答案：but no really effective ones have been found so far
听音关键：no, effective, be found
答案重构：but there have been no effective drugs so far
画龙点睛：听到转折词but，可知其后表达之意应与前句相反，前文说药物也许可以减少辐射之害，这里一个转折，说还没发现有效的药。