2019高考英语一轮复习练习题unit2cloning含解析新人教版选修8

2019高考英语一轮复习练习题unit2cloning含解析新人教版选修8

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时间:2019-03-25

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1、Cloning李仕才一、阅读理解Pollution'sgreateffectsontheenvironinenthavebecomemoreobviousinrecentyears,leadingtoamovementtopromoteenergyefficiency(效率),lessrelianceonfossil(化石)fuels,andareductioninairandwaterpollution.Mostscientistsagreethatsuchchangesarenecessarytoprotectourenvironmentfromfurtherharm.Theconstru

2、ctionindustryconsumesalargequantityofenergyandresourcesandcreatesahugeamountofpollution.IntheUnitedStates,buildinganddevelopmentaccountfor39%ofthecountry"stotalenergyuse,12%oftotalwaterconsumption,68%oftotalelectricityconsumptionand38%ofcarbondioxideemissions(二氧化碳排放),accordingtotheEnvironmentProtect

3、ionAgency.Greenbuildingsuselossenergy,water,createlesswaste,andarehealthiertolive,work,andgotoschoolinthanstandardbuildings.Buildersofgreenbuildingsusetechniquesthatuseresourcesmoreefficientlyduringtheentirebuildingcycle—construction,restoration,operation,maintenance(维护)anddemolition(拆毁)一thanthosewh

4、oconstruetmoreregularbuildings.Theenvironmentalbenefitsofbuildinggreenincludetheprotectionofecosystems(生态系统)andbiodiversity,improvedairandwaterquality,lesswasteflowingintostreams,andtheprotectionofnaturalresources.Greenbuildingscanalsoresultinloweroperatingcostsbecausetheytypicallyuselessenergyandfe

5、wermaterialsandimproveindoorairquality,improvingthehealthofpeoplewho1iveinsuchbuiIdings.Theprocessofbuildinggreenineludestechnicalandartisticplanningwithnatureprotectioninmind・Buildingdesignsoftenreflectthesurroundingenvironmentandnaturalresourcesanduserenewablebuildingmaterialssuchasbambooandstraw.

6、Inaddition,recycledresourcesfoundlocallyareusedforgreenbuildings,reducingthecostandairpollutionassociatedwithtransportingmaterialsoverlongdistances・Carefulsiteselectionisimportanttominimize(最小化)humanimpactonthesurroundingenvironment.Forexample,placingastructureinanareathatallowsittotakeadvantageofco

7、olbreezes(微风)andsunlightcanreduceenergyuseandexpenses.Moreenergyandexpenseareneededforlargerbuildingsaswell,soitisimportanttobuildsmall.Greenroofsareanotherfeatureofgreenhousesthatreduceenergyuseandco

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