新世纪大学英语4课后答案.docx

新世纪大学英语4课后答案

第一篇：新世纪大学英语4课后答案大英读写课后习题答案Unit1Workingwithwordsandexpressions（Translation）段落翻译Humanbeingsliveintherealmofnature.Theyarenotonlydwellersinnature,butalsotransformersofit.Withthedevelopmentofsocietyanditseconomy,peopletendtobecomelessdependentonnaturedirectly,butindirectlytheirdependencegrows.Humanbeingsareconnectedwithnatureby“blood”ties.Noonecanliveoutsidenature.However,thepreviousdynamicbalancebetweenmanandnaturehasshownsignsofbreakingdown.Problemssuchasthepopulationexplosion,ecologicalimbalanceandtheshortageofnaturalresourceshavebecomemajorfactorskeepinghumansocietyfrombeingfurtherdeveloped.ProfessorSpirkinholdsthattheonlychoiceforhumanbeingisthewiseorganizationofproductionandcareforMotherNature.Uint4Workingwithwordsandexpressions（Translation）Uint5Workingwithwordsandexpressions（Translation）段落翻译Uint6（Translation）段落翻译Uint7Workingwithwordsandexpressions1.（Translation）段落翻译Uint8Workingwithwordsandexpressions1.（Translation）段落翻译第二篇：大学英语课后作文答案(新世纪综合教程4)大学英语课后作文答案(新世纪综合教程4)BOOK4Unit1MyUnderstandingofEnvironmentalProtectionManandtheenvironmentarecloselyrelated.Manreliesontheenvironmentforwater,foodandshelter.Aharmoniousrelationshipbetweenmanandtheenvironmentisessentialforhumansurvivalontheearth.However,manandtheenvironmenthaveneverbeenonsuchbadtermsastheyarenow.Associetydevelops,man'stransformationofnaturehasseverelypollutedhislivingenvironment.Deforestationleadstochangesinrainfallpatterns,causingdevastatingfloods,droughtsandsandstorms.Thedischargeofchemicalpollutantsendangersourhealthandthelivesofotherbeings.Andmassproductionhasresultedintheshortageofirreplaceablenaturalresourcessuchascoalandoil.Ifwetakenoimmediateandeffectivestepstoprotectourenvironment,humanbeingsmaybethenextspeciestobecomeextinct.Weshoulddoourbesttoprotectourenvironmentbyplantingmoretrees,takingcareofwildlife,reducingindustrialwastes,usingrenewableenergy,andimposingheavyfinesonenvironmentally-unfriendlyactivities,soastopreservetheenvironmentforfuturegenerations.Unit2TheImpactoftheMobilePhone