21世纪大学英语读写教程第四册课后习题答案1到4单元

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1、UnitoneTEXTAII1.Hedefinesgreatnessasthelastingcontributionwhichapersonmakesorhasmadetohumancivilization.2.TheexampleofChurchillshowstheimportanceofpersistenceanddedicationinachievinggreatness.3.Firstbornsandonlychildrentendtomakegoodleadersintimesofcrisis,butmiddle-bornchildrenarebetterp

2、eacetimeleaders.4.A20thcenturypoliticianshouldbeaneffectivepublicspeakerandasocialperson.5.Intelligenceseemstobelessimportantthanotherfactors,suchastheabilitytocommunicateeffectively.6.Theabilitytoovercometraditionalwaysofthinkingisalsocrucial.7.Theysimplydon’tdevotetheamountoftimerequir

3、ed.8.Thestudyshowedthatenjoyingone’sworkisthebestformofmotivation.IV1.chat2.acknowledge3.motivated4.charcteristic5.despite6.influential7.cited8.obstacle9.intrinsic10.criteria11.obsession12.innate13.contribution(s)14.contemporary15.submitted16.moraleV1.leftbehind2.rise3.madehistory4.weree

4、ndowedwith5.putupwith6.goingnowhere7.ifocuseson8.bebuilton9.putin10.comeupwith11.takecharge12.set...apartVIefficiencyemergencyfluencyfrequencyproficiencytendencyurgencysufficiency1.fluency2.proficiency3.emergency4.Efficiency5.tendency6.frequencyVII1.Forsomestudents,it'snotthattheydon'tpu

5、tinenoughtime—it'sthattheydon'thavegoodstudyhabits.2.Childrenperformdifferentlyatschool.It'snotthattheyhavedifferentIQs—it'sthattheyarebroughtupindifferentenvironments.3.Thecompanyisnotveryproductive.It'snotthatitsstaffaren'ttalented—it'sthattheirenergyhasn'tbeenchanneledeffectively.4.I'

6、mreallysorry.It'snotthatIdon'twanttogotothecinemawithyou—it'sthatIhavetofinishmypapertonight.5.Youhaveastomachache.It'snotthatthefoodwasbad—it'sprobablythatyouhavetoomuchstressfromyourwork.VIII1.PresidentWilsondidn'ttrytobringtheUSbacktoeconomicandpoliticalisolation.Instead,hebelievedini

7、nternationalcooperationthroughanassociationofnations.2.Computersdon'tteachstudentsingroups.Instead,theycanhelpthemlearneffectivelyaccordingtotheirdifferentneeds.3.Weshouldn'tfocusonminorpoints.Instead,weshouldtrytosolvetheproblemofthegreatesturgencyatpresent.4.Hedosen'tge