新视角研究生英语读说写2三单元课后练习答案省公开课金奖全国赛课一等奖微课获奖课件

ExercisesReadingComprehensionStructureoftheTextUnit3:ExercisesVocabularyClozeTranslation1/58Unit3:Readingcomprehension1. Inparagraph1,theauthorsaysthatweareinthemiddleofasixthgreatextinction.Whatarethesegreatextinctions?Couldyounamesome.Inwhatwayisthecurrentgreatextinctiondifferentfromthepreviousfiveones?

Thedifferenceliesinthefactthatthepreviousfivegreatextinctionshaveoccurredfornaturalcauses,butthecurrentgreatextinctionhasbeencausedbyhumanactivities.ReferenceEx.I,p.502/58Unit3:Readingcomprehension2. Whatistheauthortryingtodowithparagraph2?

Theauthorgivesussomeexamplestoshowwhathumanneedshavecausedthecurrentgreatextinction.Generallyspeaking,theyarehumans’needsforsurvival.Reference3/58Unit3:Readingcomprehension3. WhydidthebuffaloandthepassengerpigeoninNorthAmericabecomeextinct?

Boththebuffaloandthepassengerpigeonbecameextinctowingtooverhuntingbyhumans.Reference4/58Unit3:Readingcomprehension4. WhatpointdoestheauthorwanttoillustratebywritingabouttheEuropeanrabbitsinparagraph4?

Hewantstoillustratethatnaturalhabitatsofsomenativespeciescouldbedestroyedbytheintroductionofforeignspecies.TheintroductionofEuropeanrabbitsintoAustraliaisagoodexample.TheymultipliedquicklyandthreatenedthehabitatofnativegrazinganimalsinAustraliabyeatingallthevegetation.Reference5/58Unit3:Readingcomprehension5. Inparagraph5,theauthorstatesthathumansendangerotherspeciesbydestroyingtheirnaturalhabitats.Whatexampledoestheauthorgivetosupportthisstatement?

Theexampleis:Therapidshrinkingofrainforestcausedthelossofmanyspeciesthatmadetheirhomesinit.Reference6/58Unit3:Readingcomprehension6. Whatcanwelearnfromparagraph8?

Eachlifeformoccupiesaspecialplaceintheecosystem,andthedisappearanceofanyspecieswillaffectotherspeciesintheecosystem.But74speciesaredyingouteveryday.Reference7/58Unit3:Readingcomprehension7. Whatarethetwoadvantagesthatbiodiversityhasovermonoculturesaccordingtoparagraphs9–12?

1) Biodiversitymakesitpossibleforusefulsubstancesto befoundinspecieswehaven’tgottotestorstudy. 2) Biodiversitywillsavehumanityfrombeingstarvedto deathowingtotheirgreatdependenceonasmall numberofspecies.Reference8/58Unit3:Readingcomprehension8. Inparagraph10,theauthorwritesaboutthePacificyewtree.WhatmakesthePacificyewtreesohighlyvaluedtoday?Whatdoestheauthorwanttotellusbymentioningthistree?

BecauseitisdiscoveredthatthebarkofthePacificyewtreecontainsasubstancecalledtaxol,whichcaneffectivelytreatcertainkindsofcancer.Bymentioningthistree,theauthorwantstotellusthatmanyspeciesmaydieoutbeforetheirvalueisdiscovered.Reference9/58Unit3:Readingcomprehension9. Whatisthemainideaofparagraph11?

Paragraph11mainlytellsusthatthevalueofthevastmajorityofspecieshasyettobediscovered.Itisveryimportantforustoprotectthediversityofspecies.Ifwedon’t,wewilllosespeciesthatmayturnouttobeextremelyimportanttoourownsurvival.Reference10/58Unit3:Readingcomprehension10. Whatpointissuggestedbythelastparagraph?

Itsuggeststhatit’shardtotellwhethertheseprotectivemethodswillbeeffectiveornotnowbecausetherapidhumanpopulationgrowthmaymakeitdifficulttoputthesemethodsintopractice.Reference11/581. Introduction(Paras.1–2)2. Body(Paras.3–15)3. Conclusion(Para.16)TextOutlineUnit3:StructureofthetextEx.II,p.5112/581. Introduction(Paras.1–2)Weareinthemiddleofasixthgreatextinction,whichiscausedby_______________.TextOutlineUnit3:Structureofthetexthumanactivities13/582. Body(Paras.3–15)1)_________________thathumanactivitiesendangerotherspecies.(Paras.3–5)TextOutlineUnit3:StructureofthetextThreemajorways2)Thereasonswhyweshouldpreserveeverylife-formonearth.(Paras.6–13)3)Methodsofprotectingendangeredspecies.(Paras.14–15)14/582. Body(Paras.3–15)TextOutlineUnit3:Structureofthetext1)_________________thathumanactivitiesendangerotherspecies.(Paras.3–5)ThreemajorwaysA. Humanbeings____________________fortheirmeat,bones,skinsorforprotectingtheircropsandlivestock.B. Foreignspeciesintroducedbyhumanbeingscan__________________________________.C. Humanbeings____________________________bycuttingdownforests,buildingtowns,etc.killoffanimalsdirectlyendangerthehabitatofnativespeciesdestroyanimals’naturalhabitats15/582. Body(Paras.3–15)2)Thereasonswhyweshouldpreserveeverylife-formonearth.(Paras.6–13)TextOutlineUnit3:StructureofthetextA._____________________________.B.Thevarietyofspeciescanaddnaturalbeauty.C.Somespeciesprovidehumanswitheconomicvalue.D.Eachlife-form_________________________________.E.Biodiversityhasobviousadvantagesover____________.Everylife-formhasarighttoexistoccupiesaplacewithinitsecosystemmonocultures16/582. Body(Paras.3–15)3)Methodsofprotectingendangeredspecies.(Paras.14–15)TextOutlineUnit3:StructureofthetextA.____________.B._____________________________________.C.Protectinganimalsthroughcaptivebreeding(zoos).PassinglawsSettingasidenationalparksandpreserves17/58TextOutlineUnit3:Structureofthetext3. Conclusion(Para.16)WeIt’shardtotelltheeffectivenessoftheseprotectivemethodsnow.Thebiggestproblemremains_______________________________________________.howtomeettheneedsofagrowinghumanpopulation18/581. Thepassengerpigeonwasa______exampleofaspeciesthatwasmadeextinctbyoverhunting.prime

Unit3:Vocabularycomponentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity19/582. Climate,soil,water,andairarenonliving___________ofanecosystem.components

Unit3:Vocabulary

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity20/583. Asalanguage,Englishis_______fromtheAnglo-Saxon,aWestGermanicvariety,althoughitscurrentvocabularyincludeswordsfrommanylanguages.derived

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

21/584. Stoppingthelossof___________andlimitingclimatechangearethetwomostimportantchallengesfacingourplanet.biodiversity

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

22/585. ArecentreportclaimsthatMicrosoftproducts,withtheirmarketdominance,arecreatingacomputing____________that’sdangerouslysusceptibletowormsandotherattacks.monoculturecomponentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

23/586. TheDecember26,IndianOceantsunamiwasreportedtohavekilledmorethan225,000people,andwith__________othersmissingorlosingtheirhomes.uncounted

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

24/587. Withtheinventionofblogs,thenumberofwebsitesthatwouldbeinterestingtofolloweachdayhas_________severaltimesover.multiplied

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

25/588. ThemovieTwoBrotherstellsthestorythattwotigersareseparatedascubsandtakeninto________,onlytobereunitedyearslaterasenemies.captivity

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

26/589. Inandagainin,theUScongressconsidered_________tolimitviolentcontentandmoretightlyregulatethevideogamesindustryinAmerica.legislation

componentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

27/5810. These____________projectsandeducationalactivitieshavecontributedtowildlifehabitatimprovement,watershedprotection,andforesthealth.conservationcomponentmonoculturemultiplyconserveprimetropicalderiveuncountedbiodiversityendangerlegislationcaptivity

Unit3:Vocabulary

PartB28/58Unit3:Vocabulary1. Theenvironmentalchangesmighthavecausedthedisappearanceofmanyspeciesbyeliminatingfoodsources,orexposinganimalstoclimaticconditionstowhichtheywerenotadapted.

A.extinction B.distinction C.punctuation D.destruction29/582. Thestudyshowedthatincreasingamountsofbirdfluviruswerecontaminatingthebirds’surroundingswithoutthefarmers’realizingofit. A.conditions B.climates C.habitats D.ecosystemsUnit3:Vocabulary2. Thestudyshowedthatincreasingamountsofbirdfluviruswerecontaminatingthebirds’surroundingswithoutthefarmers’realizingofit. A.conditions B.climates

C.habitats

D.ecosystems30/583. WhilerecentlybecomingthetenthmostcrowdedcityintheUSA,SanJosehasalsoheldthetitleofTheSafestBigCityinAmericaforthepastseveralyears. A.diverse B.popular C.disappointing D.populousUnit3:Vocabulary3. WhilerecentlybecomingthetenthmostcrowdedcityintheUSA,SanJosehasalsoheldthetitleofTheSafestBigCityinAmericaforthepastseveralyears. A.diverse B.popular C.disappointing

D.

populous31/584. Aninternalinquiryhasbegunintowhethersoccerplayersreceivedimproperhousingbenefitsundertheformercoaches. A.examination B.investigation C.invasion D.invitationUnit3:Vocabulary4. Aninternalinquiryhasbegunintowhethersoccerplayersreceivedimproperhousingbenefitsundertheformercoaches. A.examination

B.investigation

C.invasion D.invitation32/585. It’sourjobtopreparebright,ambitiousyoungpeoplefortheopportunitiesofferedbywhatwillcontinuetobethemainsectorsforthe21stcentury. A.principle B.extinguished C.global D.keystoneUnit3:Vocabulary5. It’sourjobtopreparebright,ambitiousyoungpeoplefortheopportunitiesofferedbywhatwillcontinuetobethemainsectorsforthe21stcentury. A.principle B.extinguished C.global

D.

keystone33/586. Theteenagerwhomadeadramaticescapeaftereightyearsofconfinementinawindowlesscellhasagreedtoatelevisedinterviewthisweek. A.captivity B.prevention C.preservation D.limitationUnit3:Vocabulary6. Theteenagerwhomadeadramaticescapeaftereightyearsofconfinementinawindowlesscellhasagreedtoatelevisedinterviewthisweek.

A.

captivity

B.prevention C.preservation D.limitation34/587. Thelittlegroupsoimperfectlyknowntousiscounterbalancedbymultitudesofspecies,ofwhichtherearenumberlessvarieties. A.uncommon B.prime C.uncounted D.rareUnit3:Vocabulary7. Thelittlegroupsoimperfectlyknowntousiscounterbalancedbymultitudesofspecies,ofwhichtherearenumberlessvarieties. A.uncommon B.prime

C.

uncounted

D.rare35/588. Theprotectionoftropicalrainforestsaspublicgoodwillrequirecooperationbetweenallcountriesintheworld. A.institution B.conservation C.precaution D.constructionUnit3:Vocabulary8. Theprotectionoftropicalrainforestsaspublicgoodwillrequirecooperationbetweenallcountriesintheworld. A.institution

B.

conservation

C.precaution D.construction36/589. Takenbeforeorwhiledrinking,manymedicationswillincreasetheeffectsofalcoholonyourbody. A.expand B.multiply C.enlarge D.extendUnit3:Vocabulary9. Takenbeforeorwhiledrinking,manymedicationswillincreasetheeffectsofalcoholonyourbody. A.expand

B.multiply

C.enlarge D.extend37/5810. TheChicagoHistoryMuseumhasoneofAmerica’slargestcollectionsofarchitecturalworkingdrawings,aswellasmanuscriptmaterials,photographs,architecturalmodels,andbuildingfragments. A.components B.substances C.monocultures D.debrisUnit3:Vocabulary10. TheChicagoHistoryMuseumhasoneofAmerica’slargestcollectionsofarchitecturalworkingdrawings,aswellasmanuscriptmaterials,photographs,architecturalmodels,andbuildingfragments. A.components B.substances C.monocultures

D.debris38/58LossofBiodiversityBiologicaldiversityisthevarietyofalllifeforms—thedifferentplants,animalsandmicroorganisms,thegenesthey1)________,andtheecosystemstowhichtheybelong.Millionsofyearsof2)_________fromothercontinentshaveresultedinAustralianplantsandanimalsevolvinginways3)________fromelsewhere.Asaresult,about82%ofourmammalspecies,45%ofourlandbirdspecies,85%ofourfloweringplantspecies,89%ofourreptilespecies,andabout93%ofourfrogspeciesarefound4)_____inAustralia.claimcontainextinctionextensiveviewmajorstorenaturalsurvivecontributedramaticisolateimportantdevelopnumerousdifferentonlymaintainurbannativecontain

Unit3:Clozeisolation

different

only

Ex.VI,pp.54~55Chooseanappropriatewordfromthefollowinglisttofillineachof

thefollowingblanks.EachwordcanbeusedonlyONCE.Changethe

wordformwherenecessary.Tobecontinued...39/58The5)______threattoourbiodiversityisthelossofhabitatthroughclearingforagriculture,forestry,miningand6)______development.This,combinedwiththeeffectsofinvasiveplantsandanimals,and7)________eventssuchasfire,droughtandflood,threatensthesurvivalofour8)_______species.SinceEuropeansettlement,mostofAustralia’secosystemshavebeen9)___________altered.claimcontainextinctionextensiveviewmajorstorenaturalsurvivecontributedramaticisolateimportantdevelopnumerousdifferentonlymaintainurbannativemajorUnit3:Clozeurban

natural

native

extensively

Tobecontinued...40/58Theresulthasbeen10)_________declinesinthedistributionandabundanceofmanyspecies,andthe11)___________ofatleast17nativemammalspeciesandtenterrestrial(陆栖)birdspecies.Theeffectsonaquatic(水栖)habitatshave12)____________toadeclineinournativefishpopulations.claimcontainextinctionextensiveviewmajorstorenaturalsurvivecontributedramaticisolateimportantdevelopnumerousdifferentonlymaintainurbannativedramaticUnit3:Clozeextinction

contributed

Tobecontinued...41/58Thebenefitsofconservingbiodiversityare13)___________.Theworld’sspeciesprovideuswithallourfoodandmanymedicinesandindustrialproducts.Therearealsoopportunitiesfor14)___________neworimprovedfoodcropsfromourbiologicaldiversity.Biodiversityisalso15)__________forecologicalprocessessuchasregulatingclimate,producingsoil,providingprotectionfromerosion,16)________nutrientsandbreakingdownpollution.claimcontainextinctionextensiveviewmajorstorenaturalsurvivecontributedramaticisolateimportantdevelopnumerousdifferentonlymaintainurbannativenumerousUnit3:Clozedeveloping

important

storing

Tobecontinued...42/58Biodiversityisculturallyimportantandit17)__________theaestheticvaluesofourlandscapes.Thereisalsothe18)_____everyspeciesonearthhastherightto19)________andthatnosinglespeciesorgenerationcan20)______theearthasitsown.claimcontainextinctionextensiveviewmajorstorenaturalsurvivecontributedramaticisolateimportantdevelopnumerousdifferentonlymaintainurbannativemaintainsUnit3:Clozeviewsurvive

claim

43/581. 由生物多样性丧失而引发对人类和地球威胁和由气候改变所带来危险一样大。biodiversityThethreattohumanityandtheplanetposedbybiodiversitylossisasgreatasthedangerspresentedbyclimatechange.becausedbybeposedbybeasgreatasbethesameasUnit3:Translation44/582. 收到年轻读者表示他们对被囚动物关心信，并问询他们能帮助做什么，我们总是很高兴。expresstheirconcernsfor…Wearealwayshappytohearfromyoungreadersexpressingconcernforanimalsincaptivityandaskingwhattheycandotohelp.animalsincaptivityUnit3:Translation45/583. 这两个最盛行理论都认为恐龙之所以灭绝是因为地球大气和温度改变而造成。popularprevalentThetwomostpopulartheoriesbothsaythatdinosaursdiedoutbecauseofchangesintheearth’satmosphereandtemperature.thereasonwhyiscausedbyUnit3:Translation46/584. 这场森林大火最终被消防队所控制住了，花费快要50万美元。bringsthundercontrolTheforestfirewasfinallybroughtundercontrolbythefire-fightingcrewsatacostofnearlyhalfamilliondollars.costatthecostofUnit3:Translation47/585. 植物根茎能够固定土壤，使之不会被雨水冲蚀。holdthesoilPlantrootscanholdthesoilinpositionandpreventitfrombeingwashedawaybytherainwater.washawaypreventitfromUnit3:Translation48/586. 健康生态系统以能源、营养物质、有机物质和水可连续更替为特点。becharacterizedbyHealthyecosystemsarecharacterizedbysustainableturnoversofenergy,nutrients,organicmatterandwater.sustainableturnoverUnit3:Translation49/587. 在世界野生动物基金会一份新汇报中，科学家警告说全球变暖可能在今后20年中灭绝北极熊。globalwarmingInanewreportbytheWWF,scientistshavewarnedthatglobalwarmingcouldkilloffpolarbearswithinthenext20years.killoffUnit3:Translation50/58carryaway8. 犁过地对流水没有防范能力，因而宝贵表土经常在大雨和洪水中被冲走。protectionPlowedfieldsdon’thaveanyprotectionagainstrunningwater,andoftenthevaluabletopsoiliscarriedawayduringheavyrainsorfloods.Unit3:Translation51/589. 这个花园比前两天要平静多了，但周围还是有很多各式各样鸟。agoodvarietyofThegardenwasconsiderablyquieterthanithadbeentheprevioustwodays,buttherewerestillagoodvarietyofbirdsaround.Unit3:Translation52/5810. 尽管有不一样预计，但总体上人们认为用于制作当代药品活性成份有大约30%到40%是从植物中提