2016年公共英语四级完形填空练习试题及答案

　　Although many governments try to convince their respective subjects that atomic energy is an acceptable alternative _1__ the burning of fossil fuels,no government has taken the least trouble to explain the dangers.Maybe they are __2_ them.__3_ the reason,the public must learn by experience,even though this _4__ may be catastrophic.

　　While it is true that nuclear reactors do not produce visible smoke,it is certainly not __5_ that they do not pollute.And the pollution they produce is much more insidious precisely because it is __6_.

　　__7_ inconvenient it may be for governments to publish all the facts,they have no moral excuse for not doing so,__8_ they think they are acting in our best interest.At least some of the facts are known,even though they are not widely reported.

　　Nuclear reactors produce radioactive water and gases in vast _9__.What __10_ all this waste?It is __11_ concrete tanks and stored on tank farms.It is __12_ in disused salt mines.It is run into fractured rock.It is buried.It is __13_ about in special trains.But even when dumped,it has to be kept __14_ by sprinklers to stop it from boiling.And the contents of the tanks are,of course,extremely corrosive.The efforts of a fracture in the tank or a failure of the cooling system would be _15__.

　　While every effort is made to _16__ that radioactive wastes do not excape into the sea or _17__ supplies of drinking water,such a leakage would be too horrible __18_ contemplate.But even then ,governments would presumably continue to belittle the hazards.

　　It seems that __19_ governments can get away with not telling the truth,they will continue to keep silent.Nevertheless the people _20__ to know the full facts.Do you know what happens to the radioactive waste in your country?No?Well—find out!

　　1) A for B with C to D instead of

　　2) A unaware of B aware of C unaware from D aware from

　　3) A however B whatever C whenever D wherever

　　4) A experiment B government C danger D experience

　　6) A visible B invisible C disvisible D unvisible

　　5) A unture B unreal C true D distrue

　　7) A however B whatever C whenever D wherever

　　8) A even B if even C if D even if

　　9) A numbers B quality C quantities D degree

　　10) A happens to B happen to C happened to D happening to

　　11) A put down B put into C put up D puto onto

　　12) A stored B storing C being stored D to be stored

　　13) A transporting B transport C being transported D transported

　　14) A hot B cooled C cool D to cool

　　15) A disaster B danger C a disaster D disastrous

　　16) A reassure B ensure C convince D assure

　　17) A in front of B behind C forward D into

　　18) A against B that C to D too

　　19) A as long as B as well as C as good as D as smart as

　　20) A has a right B with a right C having a right D have a right

　　答案:

　　1--5 CABDC　6--10 BADCA

　　11--15 BADCD　16--20 BDCAD

　　完形填空二

　　In addition to their academic work,children in the United States are offered a wide range of activites in the after-school hours.

　　They are designed to help _1__ their skills,ability and appreciation of life; to give them a chance to practice leadership and __2_ responsibilities;_3__ school courses;and to provide additional outlets and stimuli.There is often a _4__ of activities from which to choose,such as nature clubs,musical organizations,science clubs,art and drama groups,or language clubs.A _5__ selection of sport activities is always available.__6_ every school has a student-run newspaper;often a photographic darkroom is also _7__,some of these activities take place during the school day,but _8__ are held after classes are over._9__ they're optional they _10__ a part of the American educational experience. Parents encourage their children to participate in those program that __11_ suit their own special talents and interests.Much is learned during these off-duty hours,especially in _12__ of human "give-and-take".Americans believe this _13__ human relationships,social skills and a well-trained body,_14__ intellectual development .Both _15__ and college admission officers in the United States carefully consider the extra curricular activities _16__ students have participated,both during their free time after school and also during the long holidays.These indicate to them _17__ of a young person's leadship potential enthusiasm,creativity,_18__ of interest,vitality and personality.They weigh these qualities,together with the academic record,in order to _19__ a student's intelligence,perseverance and ability to use what he knows,_20__ merely repeating it by rot on examination papers.

　　1) A broaden B extend C stretch D concentrate

　　2) A resume B assume C adopt D presume

　　3) A to supplement B supplemening C to support D supporting

　　4) A scale B specimen C ring D range

　　5) A deep B long C wide D high

　　6) A Lastly B Virtually C Finally D Consequently

　　7) A possible B available C peobable D capable

　　8) A many B few C other D some

　　9) A Even though B in case C despite D however

　　10) A consider B considered C are considering D are considered

　　11) A most B best C least D worst

　　12) A conditions B terms C condition D term