2023学年完整版Unit2Cloning同步练习

Unit2Cloning同步练习一、单项填空（共15小题；每小题1分，满分15分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。1.—MaybewecouldsellT-shirtsontheInternet.—.Itissoconvenient.A.Notexactly B.Soundsgood C.Goahead D.Ican’tbelieveit2.Thenewrestaurantearnedgoodnameforitchargeslowpricesandoffersexcellentservice.A.a;an B./;the C.a;/ D.the;the3.Thoughthegirlsaresisters,theygreatlyintheirattitudestowardslife.A.range B.differ C.oppose D.change4.A.reasonable B.reliable C.typical D.unusual5.ItissaidthatasandstormiscomingsoI’mnotanouting.A.infaceof B.insearchof C.inchargeof D.infavorof6.WordcamefromJaneourmanagerwouldheldameetingtodiscussthematter.A.who B.that C.which D.whether7.A.asif B.onlyif C.ifonly D.evenif8.Tom’sexcuseforthetravelplanwasthathewasonbusinessinNewYorkatthattime.A.objectingto B.keepingto C.focusingon D.takingover9.Betweenthetwopartsoftheconcertisabreaksmokingisallowedoutsidethehall.A.that B.which C.where D.when10.Monthsofhardtrainingwhenhecamefirstinthe100mrace.A.paidback B.paidup C.paidoff D.paidout11.Sophiawasstrictlytogooutalone,inconsiderationofhersafety.A.forbidden B.allowed C.resisted D.warned12.Theproblemheshouldputoffthematchremainedtobesolvednextweek.A.whether B.when C.that D.what13.Sheissobusy,soIdon’twanttoherwithmyproblemsallthetime.A.provide B.help C.bother D.treat14.—Doyouoftengotothemovies?—Notsooftenasbefore,Ionlygotothecinema.A.atonetime B.foratime C.atatime D.15.Atthistimetomorrow_____Tom’sbirthdayparty.A.we’regoingtoattend B.we’llbeattendingC.we’llattend D.we’retoattend二、完形填空（共20小题；每小题分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。Amanwantedtobecomewealthy.Hewastoldastoryonedaythattherewasa16pebble(鹅卵石)amongthepebblesonthebeachoftheBlackSea.Itcouldturneverythingittouchedinto17.Thispebblecouldbe18onlybytouchingit:unliketheotherpebblesitwas19whentouched.ThemanrushedtothebeachoftheBlackSeaandbeganto20thepebble.21hepickedupapebblethatfeltcold,hethrewitintothesea.He22thispracticedayafterday.Eachpebblethatfeltcoldwas23thrownintothesea.Onemorning,he24totakeholdofapebblethatfeltwarm,unliketheother25.Themanthrewthepebbleintothesea.Hehadn’t26to,buthehadformedahabit.Habitscanbehardto27.Infact,ifwerepeatanybehaviour28enough,itbecomesahabit.Butsomehabitscanworkinourfavour,suchas29attitudesandhealthywaysoflife.Ourhabitualattitudesandbehaviourcaneither30usorhinder(阻碍)us.Istherebehaviouroranattitudeyouwouldliketomakeintoa31?Thenreinforce(强化)itby32itateveryopportunity.Whenitcomestohabits,33maynotmakeperfect.Butpracticewillcertainlyform34behaviour.Yourhabitswillformwhoyouare.Soformthehabitsthatare35toyouandletthemmold(塑造)youintothepersonyouwanttobe.16.A.carved B.large C.magical D.heavy17.A.gold B.water C.sand D.stone18.A.created B.saved C.transformed D.recognized19.A.smooth B.shining C.warm D.hard20.A.searchfor B.lookinto C.make D.study21.A.Unless B.When C.Although D.Until22.A.continued B.developed C.tested D.analysed23.A.luckily B.carelessly C.suddenly D.immediately24.A.attempted B.began C.decided D.happened25.A.hands B.trees C.pebbles D.balls26.A.asked B.meant C.remembered D.offered27.A.overlook B.break C.learn D.forget28.A.often B.carefully C.fast D.calmly29.A.related B.positive C.public D.conservative30.A.help B.trouble C.expose D.defeat31.A.habit B.custom C.rule D.plan32.A.changing B.retelling C.repeating D.considering33.A.attitude B.attempt C.guidance D.practice34.A.violent B.bored C.permanent D.strange35.A.devoted B.true C.familiar D.Beneficial三、阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)ADonna’sfourthgradeclassroomlookedlikemanyothersIhadseeninthepast.YetsomethingseemeddifferentthatdayIentereditforthefirsttime.Donnawasaschoolteacheronlytwoyearsawayfromretirement.InadditionshewasavolunteerparticipantinaprojectIhadorganized.Thetrainingfocusedonlanguageartsideasthatwouldmakestudentsfeelgoodaboutthemselvesandtakechargeofthemselves.Donna’sjobwastoattendtrainingclassesandcarryouttheideasbeingpresented.Myjobwastomakeclassroomvisitsandensuretheideastobecarriedout.Itookaseatinthebackoftheroomandwatched.Allthestudentswereworkingonatask,fillingapieceofpaperwiththoughts.“Ican’tkickthesoccer.”“Ican’tgetDebbietolikeme.”Everyonewaswritingsentences,describingthingstheycouldn’tdo.Thinkingwhystudentsandteacherwerefocusingonthenegativeinsteadofwritingthemorepositive“ICan”statements,Ireturnedtomyseatandcontinuedmyobservations.“Finishtheoneyou’reonanddon’tstartanewone,”saidDonna.Studentsweretheninstructedtoputthepapersintoanemptyboxinthefront.Whenallofthestudents’paperwascollected,sheputthelidontheboxandheadeddowntheplayground.Donnaaskedthestudentsouttothecorneroftheplayground.Theretheybegantodig.Theyweregoingtoburytheir“ICan’ts”.Theboxof“ICan’ts”wasplacedinapositionatthebottomoftheholeandthenquicklycoveredwithdirt.Now,yearslater,wheneverIhearthephrase,likethestudents,Irememberthat“ICan’t”isdead.36.WhydidtheauthorgotoDonna’sclassroom?A.Tolearnhowtoteachstudentstoseepositivethings.B.Toteachstudentshowtofeelgoodaboutthemselves.C.Tochecktheprogressofhisprojectonlanguagearts.D.Toserveasavolunteertotrainstudentstobeactive.37.Howdidtheauthorfeelaboutthestudents’writing“ICan’ts”atfirst?A.Angry. B.Curious.C.Nervous. D.Discouraged.38.Theunderlinedword“one”inthefourthparagraphrefersto“”.A.thesentence B.thepaper C.thetask D.theletter39.WecaninferfromthetextthatDonna.A.hadaspecialwaytoencouragestudentsB.enjoyedattendingvoluntaryactivitiesC.wasreadytohelpthosewhowereintroubleD.heldanoptimisticattitudetowardslifeBBelowarefouradsonthewebsite.ArtfulExperienceIt’sanartfulexperienceevenifyou’reartisticallychallenged.Adults,teens,andchildrenofallagesarewelcomeatContemporaryArtstudio.Weprovideeverything:stamps,ideabooks,alittlecoaching,andalotofencouragement.Dropinanytime.It’screativefunforeveryonetopaintyourownpottery(陶器)!Noexperienceneeded.Ourstudiowillshowyouhow.It’saseasyas1-2-3!sumplastpl@Chinese-EnglishTranslatorThisisanexcellentopportunityforrecentgraduateslookingtoputtheirChineseskillstouse.Requirements:nativespeakerofEnglish;businesstranslationexperienceispreferredbutnotamust;abletofulfillseveralprojectsontime;excellentreadingskillsinChinese.Ifinterested,pleaseemailstaff@orcall453-268-130.AncientObjectMarketHereyoufindalargevarietyofoldEuropeanfurniture,statuesandpaintings.Wealsoofferalargeselectionofclocksinbronze,wood,whitemetal.Organizingbuyingtoursbasedontheneedsofourclientsissomethingelsewedo.Wepickyouupfromtheairport,makehotelreservationsanddriveyouaroundtothebestwholesale(批发)dealers.Ouremailisartworkdeal@.Wearedelightedtoofferyouanefficientandreasonablypricedserviceofhigh-Rome’sairportsorotherdestinations.Wewillbetheretomeetyouonyourarrivalattheairportanddriveyoutoyourdestinationincompletesafetyandcomfort.Ifyouneedtheservice,pleasecall668-556-429.40.ContemporaryArtstudioisaplacewhere.A.onecanenjoymanykindsofartworksB.onecanlearnhowtopaintonpotteryC.onecanmakepotterybyhimself/herselfD.onecanimprovehis/herpaintingskillsgreatly41.WhomaybesuitableforaChinese-Englishtranslator?A.AnAmericangraduatewhoisgoodatChinese.B.AChinesegraduatewhomajoredinbusiness.C.AChinesecollegestudentwhohasgoodEnglishwritingskills.D.AnAmericancollegestudentwhoisinterestedinEnglishtranslation.42.IfMr.Blackwantstobuyapainting,hecan.A.sendanemailtosumplastpl@B.sendanemailtoartworkdeal@C.call453-268-130D.call668-556-42943.Whichofthefollowingcanbethebesttitleforthefourthadvertisement?A.NiceRometrips. B.AirportCarRentalsWithDrivers.C.CheapCarTours. D.FlightServiceToPickYouUpCPlantcloninghasbeenanagriculturaltechniqueusedbyfarmersandgardenersforcenturies.Grafting(嫁接)isacommonformofplantcloning.Manyplantsinnatureactuallyclonethemselvesandreproduceasexually.Clonedplantsaremuchmorepredictablethannormalplants,sotheiryield(产量)ismorereliable.Clonedplantsalsoreproducefaster,limitingtheamountoftimebetweenplantingandharvesting.Itisalsooftencheapertoproduceseedsthroughcloningthanthroughtraditionalmethods.Plantscanessentiallybeoptimizedsothatfarmersorindividualgrowersalwayshavethebestseedsavailable.WithmoreyieldatCloningcanbeusedtowipeoutdiseasesthatpreviouslykilledoffentirefieldsofcrops.Thiswouldmakeplantsimmune(免疫的)tothekindsofdiseasesthatfarmersandgardenersaroundtheworldfeareachyear.Cropfailuresduetodiseaseandviruscouldbecomeathingofthepast.Also,plantsthatarenearextinctioncanbebroughtbacktolifethroughcloning.Throughcloningscientistscandevelop“super”fruitsandvegetablesofsuperiornutritionalquality.Thiscouldmakeforahealthierpopulationoverall.Thisisalreadybeingdonethroughselectivepollination(授粉),andgeneticcloningcouldtakeittothenextlevel.Byplantcloningwehaveapopulationofidenticalplantsandalltheseplantsequallysufferfromthesamediseases,butinnaturetheweakwoulddieandthestrongwouldsurvive.Whiletherearesomedangerstoconsiderwithplantcloning,thereare44.Theunderlinedword“optimized”inParagraph2canbereplacedby“”.A.enlarged B.producedC.perfected D.examined45.Accordingtothetext,clonedplants.A.haveloweryieldthannormalplants B.needlittlecarefrompeopleC.resistvariouskindsofdiseases D.haveashortgrowthcycle46.Whatcanweinferfromthetext?A.Thefruitsproducedbyclonedplantstastemuchbetter.B.Therearemoreclonedplantsthannormalplants.C.Plantcloningcandisturbthelawsofnature.D.Peopleshouldavoideatingclonedfruits.47.Whatisthemainpurposeofthetext?A.Towarnthenegativeeffectsofplantcloning.B.Topresentdifferentkindsofplantcloning.C.Topredictthefutureofplantcloning.D.Toinformusabouttheadvantagesofplantcloning.DAnewstudyfindsthataspeciesofseastarstayscoolusingastrategy(策略)neverbeforeseenintheanimalkingdom.Theseastarssoakup(吸收)coldseawaterintotheirbodiesduringhightidetoprotectthemselvesagainstpotentiallydamagingtemperaturesbroughtaboutbydirectsunlightatlowtide.“Seastarswereassumedtobeunabletodoanythingtoprotectthemselvesfromthesunduringlowtide,”saidthestudy’sleadauthor,SylvainPincebourdeofFrançoisRabelaisUniversityinTours,France.“Thisworkshowsthatsomeseastarshaveanunexpectedback-upstrategy.”Seastarsneedtotoleraterapidchangesintemperature.Duringhightide,theygounderthesurfaceofcoolseawater.Butwhenthetideisout,theseastarsareoftenleftonrockyshorelines,lyinginthesun.Clearlytheseastarshadsomewayofbeatingtheheat,butscientistswereunsurehowtheydidit.Pincebourdeandhisteamthoughtitmighthavesomethingtodowithfluid-filledcavitiesfoundinthearmsofseastars.Sohesetupanexperimenttotestit.Theresearchersplacedtheseastarsinfishtanksandvariedthewaterleveltosimulate(模仿)tidalpatterns.Heatlampswereusedtocontroltemperature,withsomeseastarsexperiencinghighertemperaturesthanothers.Theresearchersfoundthattheseastarsexposedtohighertemperaturesatlowtidehadhigherbodymassafterthehightidethatfollowed.Sincetheseastarswerenotallowedtoeat,theincreasedmassmustbefromsoakingupwater.“Thereservoirofcoolwaterkeepstheseastarsfromoverheatingwhenthetideisoutagainthenextday,”Pincebourdesaid.48.Peopleusedtobelievethatseastars.A.savedalotofwaterintheirbodytofeedthemselvesatnightB.hadnowaytoprotectthemselvesfromthesunduringlowtideC.couldadaptthemselvestotemperaturechangesduringlowtideD.couldfilltheirbodywithcoolorwarmwateratdifferenttimes49.Thereservoirofcoolwaterhelpstheseastar.A.getenergyduringlowtideB.getbacktotheseaduringhightideC.tostaywetenoughuntilthenexthightideD.keephisbodytemperaturecoolinthesunlight50.Theresultoftheresearchshowsthat.A.theseastarscansurviveinwateronlyB.theseastarsareverysensitivetolightC.theseastarsbecomelargerinsizeafterhightideD.theseastarswillstarvethemselvesduringhightide第二节(共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Q&AQuestion:Icomefromapoorfamily,andmyparentsdowhattheycantopayformyeducation.WhatIwanttodoisletmyparentsliveahappyandcomfortablelife.WherecanIfindriches?DoIneedtoleaveschoolandfindawell-paidjob?Answer:Youareaconsideratechild.51AnAfricanfarmerheardtalesaboutotherfarmerswhodiscovereddiamondmines.Thesetalesexcitedthefarmersomuchthathecouldhardlywaittosellhisfarmandhuntfordiamondshimself.SohesoldthefarmandspenttherestofhislifewanderingtheAfricancontinent,searchingunsuccessfullyforthegleaming(闪烁的)stones.52Meanwhile,backonthefarm,themanwhohadboughthisfarmhappenedtobecrossingasmallstreamonthefarmoneday.53Hepickeditup.Itwasasparklingstone–agoodsizestone–and,admiringit,helaterputitonhismantel(壁炉架).Severalweekslater,avisitorlookedcloselyatit,thenhenearlybecameunconscious.Hetoldthefarmeritwasoneofthelargestdiamondseverdiscovered.Thefarmersaidthatthestreamwasfullofthesebrilliantstones,andhisfarmlandwascoveredwiththem.54Ifthefirstfarmerhadtakentimetostudyandpreparehimself–tolearnwhatdiamondslookedlikeintheirroughstate–andtothoroughlyexplorethefarmhehadbeforelookingelsewhere,hiswildestdreamswouldhavecometrue.55A.I’dliketogiveyousomeadviceonhowtofindtheriches.B.Nowdoyouhaveanyideaofwhatyoushoulddotofindtheriches?C.Finally,hethrewhimselfintoariveranddrowned.D.However,somethingspecialhewascarryingdroppedintothestream.E.Needlesstosay,thefarmturnedouttobethemostproductivediamondmine.F.BeforeIansweryourquestions,Iwanttotellyouastory.G.Suddenlyhesawsomethinggleamingatthebottomofthestream.四、写作（共两节，满分35分）第一节短文改错(共10小题；每小题1分，满分10分)请修改下面的短文。短文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。删除：把多余的词用斜线(\)划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者(从第11处起)不计分。MissGreylivedinasmallhouseonherself.Shewasoldanddidn’tlikenoiseatall,soshewasverypleasingwhenhernoisyneighbormovedout.Ayoungmanmovedinandheseemedquietly.Butataboutthreeo’clockinthemorning,thebarksofthedogwokeherup.Shethoughtshehasneverheardadogherebefore.Itmustbetheyoungman’sdog.Soshetelephonedhim,sayingsomethingbadaboutthedogandthenhungupthetelephonebeforehecanspeakanything.Nothingmorehappenedthisnight.Butataboutthreeo’clockinnextmorning,MissGrey’stelephonerangup,andwhensheanswered,avoicesaid,“Youtelephonedmetwenty-fourhoursago.NowI’mcallingyoutosaythatIdon’thaveadog.”第二节书面表达（满分25分）假定你是班长李华，世界动物日(WorldAnimalDay,10月4日)即将来