高中英语 unit 2 cloning单元练习新人教版选修8.docx

高中英语 unit 2 cloning单元练习新人教版选修8.docx

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高中英语unit2cloning单元练习新人教版选修8

Unit2Cloning单元练习人教新课标选修8

I.单项填空    

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.Theyhavenoideaatall________.

A.wherehehasgoneB.wheredidhego

C.whichplacehashegoneD.wherehashegone

2.Yourcompositionis_________toyourbrother’s.

A.thesameB.identicalC.differentD.equal

3._______newscame________anunknowndiseasewasspreadinginthearea.

A.Disturbing/thatB.Disturbed/which

C.Disturbing/whichD.Disturbed/what

4.Hewas_________downforseveraldaysafterheheardthebadnews.

A.brokenB.castC.cutD.discouraged

5.______whatwehavenow,wecan’taffordsolargeahouse.

A.InB.AtC.WithD.Near

6.Openingthebook,shefoundinitawhite,plainenvelopewithhername______onit.

A.toprintB.printedC.printingD.print

7.Seeingyourpicture,Icouldn’tresist_____thedays_____wespenttogether.

A.tothinkof;whenB.tothinkof;which

C.thinkingof;whichD.thinkingof;when

8.AreyousuggestingthatI_____toooldforthejob?

A.amB.shouldbeC.beD.was

9.Hishardworkpaid____whenhegottheresult.

A.offB.overC.outD.back

10.Heisacutler（刀具商）--_____,amanwhosellsknivesandsharptools.

A.inconclusionB.ingeneralC.what’smoreD.thatistosay

11.Oneofthemenheldtheview____thebooksaidwasright.

A.whatthat   B.whatC.that   D.that what

12.Wethoughtofaskinghimforhelp,butwewere______togetintouchwithhimatthattime.

A.happyB.anxiousC.easyD.unable

13.He’s_______tofailtheexamifhedoesn’tdoanyrevision.

A.nearB.fitC.boundD.easy

14.Everypossiblemeans_______topreventtheairpollution,buttheskyisstillnotclear.

A.arebeingusedB.havebeenused

C.hasbeenusedD.hadbeenused

15.----Catherine,Ihavecleanedtheroomforyou.

-----Thanks,you__________it.Icouldmanageitmyself.

A.needn’tdoB.needn’thavedone

C.mustn’tdoD.shouldn’thavedone

II.单词拼写。

1.Thebrothersd_____widelyintheirtastes.

2.Thequestionisquites_________,whilethatoneismuchmorecomplicated.

3.Sher_______fromthecompetitionafterpullingalegmuscle.

4.Smokingisf_____inpublicplaces.

5.Hissuggestionsoundsquiter_________tomostofus.

6.Thefilmwasa_____（商业的）success.

7.I’dliketocome,too,ifyouhaveno_____（反对）.

8.He______（仅仅）askedusournames.

9.Therewerestrong______（争论）forandagainsttheplan.

10.Healwaysmanagedto______（得到）whathewanted.

III.完形填空

Inthepast,scientistshaveproducedexactgeneticcopiesofsheepandafewotheranimals.They1theseclonesfromasinglecellofanadultanimal.

Recently,aprivategroupofscientistshasannounced2tomakeanexactcopyofahumanbeing.DoctorZavos,anAmericanmemberoftheteam,saysheand3willsoonbegintoclonehumansandtheyhopetoproducetheworld’sforstcloned4withinthenexttwoyears.

DoctorZavossaysthenew5groupplanstoofferhumancloningtowomenunabletobecome6andproducechildren.The7wouldbesimilartothatusedtocloneanimals.Itwould8clearinggeneticmaterialfromawoman’segg.Doctorsthenwould9geneticmaterialfromthewoman’shusbandintotheegg10puttingitinthewomen’suterus（子宫）.

DoctorZavossayshis11planstodoitsworkinacountryneartheMediterraneanSea,buthedidnot12thecountry.HedaysanItalianreproductiveexpert,SeverinoAntinori,is13theteam.DoctorAntinorihasmade14effortstohelpmanyolderwomenbecomepregnant.Heisknownfor15pregnanciesinwomenasoldassixty.

Manymedicalexpertsandothergroups16theideaofcloninghumans.Severaldoctorscriticizedthe17byDoctorZavos.Theysaydoctorsdonotknowifcloninghumansis18orsafe.Theysayitwouldbeirresponsibleto19tocloneahumanbeing.Thatisbecausethe20ofsuccessaretoosmallandtherisksaretoogreat.

1.A.boughtB.createdC.discoveredD.found

2.A.plansB.resultsC.successesD.agreements

3.A.anotherB.othesC.theotherD.theothers

4.A.plantB.animalC.birdD.baby

5.A.internationalB.nationalC.AmericanD.Italian

6.A.successfulB.bornC.pregnantD.fertile

7.A.imaginationB.technologyC.storyD.symbol

8.A.involveB.startC.makeD.borrow

9.A.translateB.placeC.takeD.make

10.A.afterB.whileC.beforeD.on

11.A.countryB.groupC.universityD.company

12.A.callB.foundC.nameD.consider

13.A.managingB.runningC.controllingD.leading

14.A.highB.totalC.greatD.wide

15.A.successfulB.beautifulC.thankfulD.sorrowful

16.A.takeupB.objecttoC.putupD.bringdown

17.A.announcementB.programC.subjectD.idea

18.A.carefulB.interestingC.unableD.possible

19.A.manageB.refuseC.attemptD.hope

20.A.factsB.resultsC.sizesD.chances

IV.语法填空

仔细阅读下面的短文，短文中有10个空格，请按照短文意思填写相应的词，每空一词。

Someyearsago,SARSbrokeoutinthemainlandofChina,causingsomepeopletobekilledornearlygotcloseto1.Thesituationwassoseverethattherewasnotimetodebatewhoistoblame.Themost2（importance）thingforthegovernmenttodoistofindoutthecauseofthis3（dead）disease.Theyinvitedallthemostfamousexpertsinthisfieldtodiscussandquiteafewsuggestionswere4（put）forward.Someofthetopexpertspickedoutthosesuggestionsandtestedthemtoseewhethertheywere5（avail）.DoctorZhongchoseonepatientwhowasseriouslyillandhadlittlehopeofpicking6andhadthenewmedicine7（test）onhim.Tohisgreatjoy,thispatientrecovered!

Hemadehisway8hisofficeandtelephonedtothetopofficial,9（tell）himthisexcitingnews.Forconvenience,hemovedtoliveinhisoffice.Hismethod10makesense.Notsoonafterthat,theotherhospitalsalsocontrolledthisterriblediseaseandkickeditoutfinally.

1.2.

3.4.

5.6.

7.8.

9._____________________10.____________________

V.阅读理解

A

HaveyouseenJurassicPark?

Inthisfilm,scientistsuseDNAkeptfortensofmillionsofyearstoclonedinosaurs.Theyfindtrouble,however,whentheyrealizethattheclonedcreaturesaresmarterandmoredangerousthanexpected.That’snothingmorethanafiction.

Butcouldwereallycloneendangeredanimals?

Todate,themostsuccessfulattempttodosowasthecloningofagaur,arareox-likeanimalfromsoutheastAsia.Scientistsusedacowtobringtheclonedbabygaur,namedNoah.Twodaysafterbirth,however,Noahdiedfromacommonbacterialinfection.OtherendangeredspeciesthatmaybeclonedincludetheAfricanbongoantelope（邦戈羚羊）,theSumatrantiger,thecheetah（猎豹）,andthegiantpanda.

Next,couldwereallycloneextinctanimals?

Intheory?

Yes.Todothis,youneedawell-keptsourceofDNAfromtheextinctanimalssuchaswoolmammoth（毛象）,Tasmaniantiger,orevendinosaur,andacloselyrelatedspecies,stillliving,whichcouldserveasasurrogatemother.

Inreality?

Probablynot.Ontheonehand,it’snotlikelythatextinctanimals’DNAcouldsurviveundamagedforsuchalongtime.Cloningextinctanimalsaswoolmammoth,Tasmaniantiger,ordinosaurismuchmoredifficultduetothelackofproperlywell-preservedDNA.Ontheotherhand,forexample,agaurcanhaveacowasasurrogatemother,definitelynotamonkey.Butwhataboutanextinctanimalsasuniqueasthepanda?

Whatspeciescouldpossiblyserveasasurrogatemother?

Cloningpresentsmanyexcitingpossibilities.However,evenifextinctanimalsarebroughtback,theycouldnotsurviveintoday’sworld.Notonlydomostextinctanimalshavenohabitattolovein,buttheotherplantsandanimalstheydependedonforfoodmayalsobegoneaswell.

1.Itcanbelearnedfromthetextthat________.

A.scientistshaveclonedtheAfricanbongoantelope

B.boththecheetahandthegiantpandaliveinAsia

C.thegaurlivesinAsiaandisendangered

D.thegaurisanextinctspecies

2.Theunderlinedwords“asurrogatemother”probablyrefertoafemalewho______.

A.contributesitseggstoanotherfemaleB.givesbirthtoababyforanotherfemale

C.givesbirthtoababyofitsownD.cannotgivebirthtoababy

3.Thedifficultyincloninganextinctspeciesisthelackof______.

A.boththewell-preservedDNAandplantstoliveon

B.boththehabitattoliveinandthewell-preservedDNA

C.bothhabitattoliveinandplantstoliveon

D.boththewell-preservedDNAandasurrogatemother

4.Intheauthor’sopinion,itispossiblethat______.

A.someextinctspeciesmaybecloned,butnotsurvive

B.extinctspeciesmaybeclonedandeasilysurvive

C.agaurcanhaveamonkeyasasurrogatemother

D.alltheextinctspeciesmaybecloned

B

Researchadvancesoverthepastdecadehavetoldusthat,withalittlework,wehumanscanclonejustaboutanythingwewant,fromfrogstomonkeysandprobablyevenourselves!

So,wecanclonethings,butwhywouldwewantto?

Ofallthereasons,cloningformedicalpurposesmostprobablybenefitlargenumbersofpeople.Howmightcloningbeusedinmedicine?

1.Cloninganimalmodelsofdisease

Muchofwhatresearcherslearnabouthumandiseasecomesfromstudyinganimalmodelssuchasmice.Often,animalmodelsaregeneticallyengineeredtocarrydisease-causingmutations（变异）intheirgenes.Creatingthesetransgenic（转基因的）animalsisaprocessthatrequirestrial-and-erroandseveralgenerationsofbreeding（培育）.Cloningtechnologiesmightreducethetimeneededtomakeatransgenicanimalmodel,andtheresultwouldbeapopulationofgeneticallyidenticalanimalsforstudy.

2.Cloningstemcells（干细胞）forthetreatmentofdiseases

Stemcellsarethebody