（福建专供）高中英语 Unit 21 Human Biology课时提升作业 北师大版选修7VIP免费

Ⅰ.单项填空1.Astimewenton,thoseunpleasanteventsweregraduallyfromhismemory.A.wipedoutB.stoodoutC.cleanedoutD.putout2.Ifweotherpeople’strustandloveinus,wewillbecastasidebyothersoneday.A.holdB.takeC.abuseD.have3.Hiseffortstoraisemoneyforhisprogramwere,becausenooneshowedanyintentiontotakeacentoutoftheirpockets.A.inplaceB.insightC.ineffectD.invain4.Thegovernmentmanagedtohavetwochemicalfactoriesbuilt,thoughbysomepeople.A.beingopposedtoB.opposedtoC.wasopposedtoD.havingbeenopposedto5.(2013·宿州模拟)There’ssomeevidencethatthehealthofsomeAmericanshasasaresultofacquiringunhealthy,stress-leadinghabits.A.deniedB.ignoredC.decreasedD.declined6.Foryearsworkershavetolowwagesandterribleworkingconditions.A.preserveB.prohibitC.ignoreD.tolerate7.EachmembercountryofWTOmustitslawsandregulationsandcompeteontheprincipleoffairnessandcooperation.A.catertoB.correspondtoC.relatetoD.submitto8.(2013·三明模拟)ItisthefirsttimethatIthiskindoftastymooncake.A.enjoyB.haveenjoyedC.hadenjoyedD.amenjoying9.Trafficregulationspeoplefromridingbicyclesonthesidewalk.A.stopB.prohibitC.preventD.keep10.Theexplorersweretoldtothemselveswitheverythingtheywouldneedforthevoyage.A.associateB.equipC.relateD.feed11.ImaybeawayonbusinessnextweekbutI’llbebackbyFriday.A.atanyrateB.atarateC.atthisrateD.attherate12.Peoplearenoweffectivewaysofusingtheleastenergytocreatethegreatestbenefit.A.seekingB.findingC.attemptingD.treating13.Whethereuthanasia(安乐死)shouldbemadelegalhasbeeninthelawcircleformanyyears.A.conventionalB.controversialC.contradictoryD.concrete14.Sheherselftoadelicioussoup.A.dealtB.appliedC.treatedD.entertained15.(2013·福州模拟)Imightsomeconcerninrefusingyouifyoumorelikeagentleman.A.havefelt;hadbehavedB.feel;behavedC.havefelt;behavedD.feel;hadbehavedⅡ.阅读理解(A)Wecanstayyoungforever.ThatisthemessageDr.ShenZiyinwantstogivetheworld.AndtheChinesedoctorclaimsthathehasfoundananswertotheproblemofaging.Hissolutionisaherbalmedicinetoslowtheprocessofaging.Dr.ShenZiyinhasbeentrainedinWesternmedicine.AtthesametimehestudiedtraditionalChinesemedicine.And,hehasbeenworkingforthepastfortyyearstoputtogetherthebestofbothandfindacureforaging.HehastakenahintfromtheancientChinesemedicinesystemcalled“shen”.AccordingtoShen,itisthekidneythatadjuststhefunctioningofthebodyaswellasitsagingprocess.Itisresponsibleforthelevelofactivitythatthehumanbodiesgothrough.StudiesconductedbyDr.ShenshowthatherbalmedicinebasedontheShensystemslowtheagingprocess,saysareportinTheTelegraphnewspaper.Wenoticethatwhenpeoplegrowold,theyhavereducedstrength,lossofhair,backache,weaknessingeneral,andwrinkles,amongothers.Thishappensbecausewhenpeoplegrowold,theirbodiesproduceT-cells.TheseT-cellscontainaparticularsubstancecalledFas.Fasmakesthecellsinthebodydestructthemselves.SotheonlywaytoslowdownagingistoslowtheproductionofT-cellsinthebody.Thiscanhappenifpeopleeatlow-caloriefood.ThenthebodyisnotactiveenoughtoproduceextraT-cells.But,isgoinghungryallthetimeagoodpricetopayforstayingyoung?ThisiswhereDr.Shen’sherbalmedicinecomes.Buthoweffectiveitwillbe,onlytimecantell.(278W)1.HowdidDr.Shenfindthesolutiontotheproblemofaging?A.BystudyingWesternmedicine.B.BylearningtraditionalChinesemedicine.C.BycombiningbothWesternandChinesemedicine.D.BydoingresearchonbothWesternandChinesepeople.2.WhatplaysthemostimportantroleinkeepingpeopleyoungaccordingtoShen?A.Medicinetreatment.B.Peo...