完形填空和阅读理解.doc

Passage1
Cananimalsbemadetoworkforus?Somescientiststhinkthatonedayanimalsmaybetrainedtodoanumberofsimplejobsthatarenowdonebyhumanbeings.
Theypointedoutthatatacircus(马戏团)，forexample,wemayseeelephants,monkeys,dogsandotheranimalsdoingquiteskillfulthings.Perhapsyouhaveseenontelevisionorinafilm.Ifyouwatchclosely,youmaynoticethatthetraineralwaysgivestheanimalapiececandyorapieceoffruitasareward.Thescientistssaythatmanydifferentanimalsmaybetrainedtodoanumberofsimplejobsiftheyknowtheywillgetarewardfordoingthem.
Ofcourse,asweknow,dogscanbeusedtoguardahouse,andsoldiersinbotholdandmoderntimeshaveusedgeesetogiveawarningbymakingalotofnoisewhenastrangeroranenemycomesneat.Butitmaybepossibletotrainanimalstoworkinfactories.InRussia,forexample,pigeons,whicharebirdswithgoodeyesight,arebeingusedtowatchoutforfaultsinsmallsteelballsthatarebeingmadeinonefactory.Whenthepigeonseesaballwhichlooksdifferentfromothers,ittouchesasteelplatewithitsbeak.Thisturnsonalighttowarnpeopleinthefactory.Atthesametimeafewseedsaregivenasareward.Ittakesthreetofiveweekstotrainapigeontodothisandonepigeoncaninspect3000to4000ballsanhour.
Apes（猿）havebeenusedinAmericainhelpingtomakecars,andscientistsbelievethattheselargemonkeysmaybeusedonedaytogathercropsandevendrivetrains.
41.Whatmadescientiststhinkanimalscanbemadetoworkforusoneday?
A.Animalsareveryskillfulatacircus.
B.Theyarebigandstrong.
C.Someanimalsareascleverashumanbeings.
D.Animalscanbetrainedbecausetheyliketogetsomethingasareward.
42.Thetrainerusuallygivestheanimalapieceofcandyorfruit__________.
A.whenitishungry
B.beforeitplaysatrick
C.whenitstartstoplayatrick
D.afterithasdonethetrick
43.The“reward”inthepassagemeans_________.
A.anhonorgivenfordoingsomething
B.moneypaidfordoingsomething
C.attentionpaidtogoodconduct
D.somethinggiveninreturnforwork
44.Manyanimalsmaybetrainedtososimplejobsiftheyknow________.
A.whotheirtrainersare
B.theywillbepraisedbytheirtrainers
C.theywillgetareward
D.somethingdangerouswillhappentothem
45.WhichofthefollowingisNOTtrue?
A.S