大学英语4课后练习答案(units 1-3)new

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1、KeytoExercises(Units1-3)Unit1PartIITextATextOrganizationPartsParagraphs''MainIdeasPartOneParas1-2Introduction—BothNapoleon'sandHitler'smilitarycampaignsfailedbecauseoftheseverityoftheRussianwinter.PartTwoParas3-11Napoleon'smilitarycampaignagainstRussiaPartThreeParas12-20Hitler'smilitaryca

2、mpaignagainsttheSovietUnionPartFourPara21Conclusion—Theelementsofnaturemustbereckonedwithinanymilitarycampaign.2.SectionsParagraphsMainIdeasSectionOneParas12-13Hitler'sblitzkriegagainstRussiaandStalin'sscorchedearthpolicySectionTwoParas14-18thebattlesfoughtatLeningrad,MoscowandStalingradS

3、ectionThreeParas19-20theRussiancounter-offensiveandtheoutcomeofthewarLanguagesenseenhancement(1)thefierceresistance(2)thelongmarch(3)devastatingenemy(4)bleak(5)launched(6)militarymight(7)moweddown(8)campaign(9)painfullesson(10)theaidVocabularyI.1.1)alliance3)stroke5)minus7)declarations2)

4、atthecostof4)limp6)regions8)siege9)raw10)bidehistime11)havetakentheirtoll12)Inthecaseof2.1)isfacedwith2)getboggeddown3)ispressingon/pressedon4)dragon5)getby6)dineout7)havecutback8)getthrough3.1)Therapidadvanceingenetherapymayleadtotheconquestofcancerinthenearfuture.2)…hasbeenbroughttoahal

5、tbythedelayedarrivalofrawmaterialsduetothedockworkers’strike.3)Sarahasmadeuphermindthatherleisureinterestswill/shouldnevergetinthewayofhercareer.4)Obviouslythereporter'squestioncaughttheforeignministeroffguard.5)Theintroductionoftheelectroniccalculatorhasrenderedtheslideruleoutofdate/obso

6、lete.4.1)Beingfacedwithanenemyforcesmuchsuperiortoours,wehadtogiveuptheoccupationofbigcitiesandretreattotheruralandmountainousregionstobuildupourbase.2)Unityiscrucialtotheefficientoperationofanorganization.Failuretoreckonwiththisproblemwillweakenitsstrength.Inmanycases,workmaybebroughtto

7、ahaltbyconstantinternalstruggleinanorganization.3)TheRedArmyfoughtaheroicbattleatStalingradandwonthedecisivevictoryagainsttheGermans.Infact,thisbattleturnedthetideintheSecondWorldWar.Duringthisfamousbattle,theSoviettroopswithstoodtheGermansiegeandweakenedtheGermana