大学体验英语综合教程4(第三版)课后习题及答案

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1、Unit11.Taxesareanobligationwhichmayfalloneverybody.2.Weapplaudedtheauthority'sdecisionnottoclosethehospital.3.Thedoctor'sinstructionsmustbefulfilledexactly;thesickman'slifedependsonit.4.Dotheseopinionpollsreallymirrorwhatpeoplearethinking?5.Iprefertothinkofmemorizationasasteppi

2、ng-stonetoflexibilityinuseofwordsandphrases.6.Inherofficememosshetendedtodevaluetheworkdonebyherstaff.7.Thehistoryofrailroadtransporthaspartlybeenahistoryofstrivingforgreaterefficiencyandprofit8.Hetookonthenewpostwithouthavingthefaintestideaofwhatitentailed.9.Heissupposedlyoneo

3、fthegreatestexpertsinthatfield.10.Absolutesecrecyisessential.Consequently,thefewerwhoareawareoftheprojectthebetter.1.Thisperiodisusuallyrefertoasthepostwarperiod.2.Itwouldbeasetbackatbestifweweredeniedtheuseoftheirsoftware.3.Wemakepeoplementallyoldbyretiringthem,andwemayevenbyt

4、hesametokenmakethemphysicallyold.4.Iknowthatthepublicatlargearen'tinterestedinthisissue.5.Mysisterwasalwaysholduptomeasamodelchild.1.随着职务的提升，他担负的责任也更大了。Withhispromotion,hehastakenongreaterresponsibilities.2.他感到他没有必要再一次对约翰承担这样的责任了。HefelthedidnothavetomakesuchacommitmenttoJohnany

5、more.3.闲暇时玛丽喜欢外出购物，与她相反，露西却喜欢呆在家里看书。6Marylikestogoshoppinginhersparetime,asopposedtoher,Lucypreferstostayathomereading.4.说好听一点,可以说他有抱负，用最糟糕的话来说，他是一个没有良心或没有资格的权力追求者。Atbesthe’sambitious,andatworstapower-seekerwithoutconscienceorqualifications.5.我们已经尽全力想说服他，但是却毫无进展。Wehavestrivento

6、thefulltoconvincehim,butwehavemadenoheadway.Unit21.Countlessfossildiscoveriesallowustotraceevolutionoftoday’sorganismfromearlierforms.2.Alllegislation,allgovernment,allsocietyisformedupontheprincipleofmutualconcession,politenessandcourtesy.3.Severaleuro-zonegovernmentsobjecttot

7、hearrangement,whichtheysaidputthematdisadvantage.4.Itcouldtakedecadesbeforepeoplefinallyacceptthateverythingtheybelievedtobeeternallytruewasmerelyatemporarysetofmeasuresthatworkedforalimitedperiodoftime.5.Researchershavefoundthatartificialsubstitutesforthenaturalsweetenersactua

8、llyincreaseOne’sappetiteandmakehimeatmore.6.Indeed,man