17年成人学位英语考试完形填空试题

17年成人学位英语考试完形填空试题17年成人学位英语考试完形填空试题

Spaceisadangerousplace,notonlybecauseofmeteors(流

星)butalsobecauseofraysfromthesunandotherstars.Theatmospher eagainacts1__________ourprotectiveblanketon2__________.Ligh tgetsthrough,andthisisessential3__________plantstomakethefo odwhichwe4__________.Heat,5__________,makesourenvironmentst olerableandsomeultravioletrays(紫外线

的)penetratethe6__________.Cosmic(宇宙

的)raysofvariouskindscome7__________theairfromouterspace,bu t8__________quantitiesofradiationfromthesunarescreenedoff.9 __________menleavetheatmospheretheyare10__________tothisrad iation;11__________theirspacesuitsorthewallsoftheirspacecra ftiftheyareinside,12__________preventalotofradiationdamage. Radiationisthegreatestknowndangertoexplorersin13__________. Dosesofradiationaremeasuredin14__________called"rems(雷目)".Weall15__________radiationhereonearthfromthesun,fromco smicraysandfromradioactiveminerals.The"16__________"doseofr adiationthatwereceiveeachyearisabouttwomillirems;it17______ ____accordingtoswheresyoulive,andthisisaveryroughestimate.S cientistshavereasontothink18__________amancan19__________fa rmoreradiation20__________withoutbeingdamaged;thefigureof60 remshasbeenagreed.

1.A.forB.withC.onD.as

2.A.starsB.sunC.earthD.space

3.A.withB.fromC.underD.for

eB.liveC.eatD.get

5.A.againB.alsoC.besidesD.too

6.A.environmentB.spaceC.atmosphereD.earth

7.A.acrossB.toC.fromD.through

8.A.validB.enormousC.variousD.proper

9.A.AssoonasB.Aswellas

C.Asmuchas

D.Aspossibleas

10.A.shownB.exposedC.facedD.covered

11.A.butB.becauseC.soD.sothat

12.A.getB.makeC.haveD.do

13.A.earthB.atmosphereC.spaceD.environment

14.A.piecesB.unitsC.partsD.elements

15.A.receiveB.acceptC.bringD.catch

monC.generalD.normal

17.A.shiftsB.convertsC.modifiesD.varies

18.A.whatB.whichC.thatD.why

19.A.putupwithB.keepupwith

eupwith

D.catchupwith

20.A.fromB.thanC.asD.away

1.【答案】D

【解析】actas"充当、起……作用";actfor"代表、代理";acton"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】beessentialfor"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whichwe…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comethrough相当于penetrate，穿透。comeacross"偶遇";cometo"来到";comefrom"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comethrough。

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】assoonas"只要";aswellas"除……之外";asmuchas"和……一样多";aspossiblas"尽可能的"。

10.【答案】B

【解析】beexposedto"暴露于"，show"展示";face"面对"。

11.【答案】A