復習的情況要通過做題來檢驗，下面是湖北專升本網整理的專升本英語完形填空的模擬題，同學們做完后可對照參考答案來檢查，做錯的題要查看解析弄明白哦！

    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 __2__ . Light gets through, and this is essential __3__ plants to make the food which we __4__ . Heat, __5__ , makes our environments tolerable and some ultraviolet rays(紫外 線的) penetrate the __6__ . Cosmic(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 damage. Radiation is the greatest known danger to explorers in __13__ . Doses of radiation are measured in __14__ called“rems (雷目)”. We all __15__ radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The“ __16__”dose of radiation that we receive each year is about two millirems; it __17__ according toswheresyou live, and this is a very rough estimate. Scientists have reason to think __18__ a man can __19__ far more radiation __20__ without being damaged; the figure of 60 rems has been agreed. 

1.A.for B.with C.on D.as 

2.A.stars B.sun C.earth D.space 

3.A.with B.from C.under D.for 

4.A.use B.live C.eat D.getwww.qiewo.com 

5.A.again B.also C.besides D.too 

6.A.environment B.space C.atmosphere D.earth 

7.A.across B.to C.from D.through 

8.A.valid B.enormous C.various D.proper 

9.A.As soon as B.As well as C.As much as D.As possible as

10.A.shown B.exposed C.faced D.covered 

11.A.but B.because C.so D.so that 

12.A.get B.make C.have D.do 

13.A.earth B.atmosphere C.space D.environment 

14.A.pieces B.units C.parts D.elements 

15.A.receive B.accept C.bring D.catch 

16.A.conventional B.common C.general D.normal 

17.A.shifts B.converts C.modifies D.varies 

18.A.what B.which C.that D.why 來源：優習網 

19.A.put up with B.keep up with C.come up with D.catch up with 

20.A.from B.than C.as D.away 

參考答案及解析

1.【答案】D 【解析】act as“充當、起??作用” ；act for“代表、代理” ；act on“按照” 。 本句意為大氣層起到保護傘的作用。 

2.【答案】C 【解析】見上題分析。 

3.【答案】D 【解析】be essential for“對??來說是首要的、基礎的” ，固定搭配。 

4.【答案】C 【解析】只有 eat 與先行詞 food 和定語從句 which we?搭配。 

5.【答案】D 【解析】本句意為：熱不僅使我們的生產環境溫度適宜，而且紫外線也能穿 透大氣。also 一般緊跟動詞；besides 一般用在句前；too 可用在句中，用逗號隔 開。 

6.【答案】C 【解析】根據上題所講，penetrate 這個動詞后面應接 atmosphere“大氣”這 個名詞。 

7.【答案】D 【解析】這里的 come through 相當于 penetrate，穿透。come across“偶遇” ； come to“來到” ；come from“來自” 。本句意為：各類來自外部空間的宇宙射線 穿透大氣層??，故選 come through。 

8.【答案】B 【解析】Valid 有效的；various 各種各樣的；proper 合適的。在四個選項中 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?? 一樣多” ；as possible as“盡可能的” 。 

10.【答案】B 【解析】be exposed to“暴露于” ，show“展示” ；face“面對” 。 

11.【答案】A 【解析】本句前半句的意思是： “人們一離開大氣層就會接觸射線” ；后半句 意思是： 他們的太空服和太空船會阻止射線造成的損害” 前后應該是轉折關系， “ 。 故用 but。 

12.【答案】D 【解析】Do +動詞原型的結構表示強調謂語動詞。 

13.【答案】C 【解析】由 radiation 和 explorers 可推測，應選 space(太空)。本句意為射線 是探險者在太空遇見的已知的最大危險。 

14.【答案】B 【解析】unit“單位、單元” ；element“元素” ；part“部分” ；piece“碎片” 本句意為：射線的多少可以以雷目這個測量單位測量。 

15.【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。 

16.【答案】D 【解析】conventional“傳統的” ；common“共同的、普通的” ；general“一 般的、總體的” ；normal“正常的” 。本句意為：我們每年接受的正常輻射量??， 故選 normal。 

17.【答案】D 【解析】shift“移動” ；convert“轉換” ；modify“修改” ；vary“變化” 。根 據句意，所處地點不同，所受輻射量也不一樣??，故選 varies. 

18.【答案】C 【解析】本句應填入引導賓語從句的代詞，而從句不缺少主語和賓語，因而 不選擇 what 和 which，又加之主句是陳述語氣，故選擇 that。 

19.【答案】A 【解析】put up with“忍受” ，固定搭配。keep up with 和 catch up with 意為 跟上,come up with 意為提出。 

20.【答案】B 【解析】more (radiation)后應加 than。