2017成人学位英语完型考试复习题及答案

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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 atmosphere again acts 1__________our protective blanket on 2 __________t gets through, and this is essential 3__________ plants to make the food which we 4 __________, 5__________ , makes our environments tolerable and some ultraviolet rays(紫外线的) penetrate the 6 __________ic(宇宙的) rays of various kinds come 7__________ the air from outer space, but 8__________ quantities of radiation from the sun are screened off. 9 __________ men leave the atmosphere they are 10__________ to this radiation; 11__________ their spacesuits or the walls of their spacecraft, if they are inside, 12__________ prevent a lot of radiation ation is the greatest known danger to explorers in 13 __________s of radiation are measured in 14__________ called"rems(雷目)" all 15__________ radiation here on earth from the sun, from cosmic rays and from radioactive "16__________"dose of radiation that we receive each year is about two millirems; it 17__________ according toswheresyou live, and this is a very rough ntists have reason to think 18 __________a man can 19 __________far more radiation 20 __________without being damaged; the figure of 60 rems has been agreed.

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　　成人学位英语考试完型填空练习参考答案：

1.【答案】D

【解析】act as"充当、起……作用";act for"代表、代理";act on"按照"。本句意为大气层起到保护伞的作用。

2.【答案】C

【解析】见上题分析。

3.【答案】D

【解析】be essential for"对……来说是首要的、基础的"，固定搭配。

4.【答案】C

【解析】只有eat与先行词food和定语从句which we…搭配。

5.【答案】D

【解析】本句意为：热不仅使我们的生产环境温度适宜，而且紫外线也能穿透大气。also一般紧跟动词;besides一般用在句前;too可用在句中，用逗号隔开。

6.【答案】C

【解析】根据上题所讲，penetrate这个动词后面应接atmosphere"大气"这个名词。

7.【答案】D

【解析】这里的come through相当于penetrate，穿透。come across"偶遇";come to"来到";come from"来自"。本句意为：各类来自外部空间的宇宙射线穿透大气层……，故选come through。

8.【答案】B

【解析】Valid有效的';various各种各样的;proper合适的。在四个选项中只有enormous表示"大量的"意思。

9.【答案】A

【解析】as soon as"只要";as well as"除……之外";as much as"和……一样多";as possible as"尽可能的"。

10.【答案】B

【解析】be exposed to"暴露于"，show"展示";face"面对"。

11.【答案】A

【解析】本句前半句的意思是："人们一离开大气层就会接触射线";后半句意思是："他们的太空服和太空船会阻止射线造成的损害"。前后应该是转折关系，故用but。

12.【答案】D

【解析】Do 动词原型的结构表示强调谓语动词。

13.【答案】C

【解析】由radiation和explorers可推测，应选space(太空)。本句意为射线是探险者在太空遇见的已知的最大危险。

14.【答案】B

【解析】unit"单位、单元";element"元素";part"部分";piece"碎片"本句意为：射线的多少可以以雷目这个测量单位测量。

15.【答案】A

【解析】receive表示客观收到;accept表示主观接受。我们受到的辐射并非主观接受。

16.【答案】D

【解析】conventional"传统的";common"共同的、普通的";general"一般的、总体的";normal"正常的"。本句意为：我们每年接受的正常辐射量……，故选normal。

17.【答案】D

【解析】shift"移动";convert"转换";modify"修改";vary"变化"。根据句意，所处地点不同，所受辐射量也不一样……，故选varies.

18.【答案】C

【解析】本句应填入引导宾语从句的代词，而从句不缺少主语和宾语，因而不选择what和which，又加之主句是陈述语气，故选择that。

19.【答案】A

【解析】put up with"忍受"，固定搭配。keep up with和catch up with意为跟上,come up with意为提出。

20.【答案】B

【解析】more (radiation)后应加than。