[外语类试卷]专业英语四级(完形填空)模拟试卷219及答案与解析.doc
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1、专业英语四级(完形填空)模拟试卷 219及答案与解析 一、 PART IV CLOZE Decide which of the words given in the box below would best complete the passage if inserted in the corresponding blanks. The words can be used ONCE ONLY. 0 Space is a dangerous place, not only because of meteors (流星 ) but also because of rays from the sun
2、 and other stars. The atmosphere again acts 【 C1】 _ our protective blanket on earth. Light gets through, and this is 【 C2】 _ for plants to make the food 【 C3】 _ we eat. Heat, too, makes our environment endurable. Various kinds of rays 【 C4】 _ the air from outer space, 【 C5】 _ enormous quantities of
3、radiation from the sun are 【 C6】 _ off. As soon as men leave the atmosphere they are 【 C7】 _to this radiation but their spacesuits or the walls of their spacecraft, 【 C8】_ they are inside, do prevent a lot of radiation damage. Radiation is the greatest known 【 C9】 _ to explorers in space. The unit o
4、f radiation is called “rem (雷姆 )“. Scientists have reason to think that a man can 【 C10】_ far more radiation 【 C11】 _ 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely 【 C12】 _ to be sure about radiation damage a person may feel perfectly we
5、ll, but the 【 C13】 _ of his or her sex organs may be damaged, and this will not be discovered 【 C14】 _ the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been 【 C15】 _, bu
6、t the Apollo missions have been quite 【 C16】 _. We simply do not know yet how men are going to get on when they 【 C17】 _ weeks and months outside the 【 C18】 _ of the atmosphere, working in a space laboratory. Drugs might help to 【 C19】 _ the damage done by radiation, but no really 【 C20】 _ ones have
7、 been found so far. 1 【 C1】 ( A) as ( B) in ( C) on ( D) to 2 【 C2】 ( A) initial ( B) essential ( C) beneficial ( D) possible 3 【 C3】 ( A) when ( B) where ( C) which ( D) what 4 【 C4】 ( A) pull through ( B) put through ( C) go through ( D) come through 5 【 C5】 ( A) but ( B) and ( C) though ( D) or 6
8、 【 C6】 ( A) absorbed ( B) cleaned ( C) screened ( D) crossed 7 【 C7】 ( A) exploited ( B) exhibited ( C) exposed ( D) employed 8 【 C8】 ( A) if ( B) so ( C) for ( D) lest 9 【 C9】 ( A) decision ( B) desire ( C) disaster ( D) danger 10 【 C10】 ( A) put up with ( B) stick to ( C) catch up with ( D) make u
9、p of 11 【 C11】 ( A) above ( B) under ( C) than ( D) at 12 【 C12】 ( A) different ( B) distinct ( C) diverse ( D) difficult 13 【 C13】 ( A) functions ( B) structures ( C) operations ( D) cells 14 【 C14】 ( A) till ( B) until ( C) unless ( D) during 15 【 C15】 ( A) talked ( B) debated ( C) reported ( D) r
10、evised 16 【 C16】 ( A) short ( B) long ( C) dangerous ( D) risky 17 【 C17】 ( A) pay ( B) cost ( C) take ( D) spend 18 【 C18】 ( A) profession ( B) production ( C) protection ( D) prevention 19 【 C19】 ( A) increase ( B) decrease ( C) relieve ( D) relax 20 【 C20】 ( A) curable ( B) capable ( C) efficient
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- 外语类 试卷 专业 英语四 填空 模拟 219 答案 解析 DOC
