GCT英語(yǔ)完型填空專項(xiàng)訓(xùn)練(三)

1、GCT英語(yǔ)完型填空專項(xiàng)訓(xùn)練(三) Passage 5 Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts _1_ our protective blanket on earth. Light gets through, and this is essential _2_ plants to make the food which we eat. Heat, _3_

2、, makes our environments tolerable and some ultraviolet rays (紫外線的) penetrate the atmosphere. Cosmic (宇宙的) rays of various kinds come _4_ the air from outer space, but a great quantity of radiation from the sun are screened off. _5_ men leave the atmosphere they are exposed to this radiation; but th

3、eir spacesuits or the walls of their spacecraft, if they are inside, _6_ prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in _7_ . Doses of radiation are measured in units called “rems (雷目)”. We all _8_ radiation here on earth from the sun, from cosmic rays and

4、from radioactive minerals. The “_9_” dose of radiation that we receive each year is about two milligrams; it _10_ according to where you live, and this is a very rough estimate. 1. A. for B. with C. on D. as2. A. with B. from C. under D. for3. A. again B. also C. besides D. too4. A. across B .to C.

5、from D. through5. A. As soon as B. As well asC. As much as D. As possible as6. A. get B. make C. have D. do7. A. earth B. atmosphere C. space D. environment8. A. receive B. accept C. bring D. catch9. A. conventional B. commonC. general D. normal10. A. shifts B. converts C. modifies D. varies1.【答案】D

6、（北京安通學(xué)校提供）【解析】act as “充當(dāng)、起作用”；act for “代表、代理”；act on “按照”。本句意為大氣層起到保護(hù)傘的作用。2.【答案】D【解析】be essential for “對(duì)來(lái)說(shuō)是首要的、基礎(chǔ)的”，固定搭配。3【答案】D【解析】本句意為：熱不僅使我們的生產(chǎn)環(huán)境溫度適宜，而且紫外線也能穿透大氣。also一般緊跟動(dòng)詞；besides一般用在句前；too可用在句中，用逗號(hào)隔開(kāi)。4.【答案】D【解析】這里的come through相當(dāng)于penetrate，穿透。come across “偶遇”；come to “來(lái)到”；come from “來(lái)自”。本句意為：各類(lèi)來(lái)自

7、外部空間的宇宙射線穿透大氣層，故選come through。5.【答案】A【解析】as soon as “只要”；as well as “除之外”；as much as “和一樣多”；as possible as “盡可能的”。6.【答案】D【解析】do +動(dòng)詞原型的結(jié)構(gòu)表示強(qiáng)調(diào)謂語(yǔ)動(dòng)詞。7.【答案】C【解析】由radiation和explorers可推測(cè)，應(yīng)選space (太空)。本句意為射線是探險(xiǎn)者在太空遇見(jiàn)的已知的危險(xiǎn)。8.【答案】A【解析】receive表示客觀收到；accept表示主觀接受。我們受到的輻射并非主觀接受。9.【答案】D【解析】conventional “傳統(tǒng)的”；common “共同的、普通的”；general “一般的、總體的”；normal “正常的”。本句意為