2023学年完整公开课版b8u2Warmingup

Cloning

Book8Unit2Task1Answerfollowingquestions1.What’sthevideoabout?2.HowmanyattemptsarethereforthescientiststosucceedcloningDollythesheep?3.Isitpossibletoclonehumanbeings?CLONING:WHEREISITLEADINGUS?HollygreatmotherofGod,Ihavebeencloned!!!Task2Skimming(groupwork)TaskA.Workingroupsof4,trytofindoutthecorrectorderofthepassage.1.The________ofcloning2._______________ofcloning.3.The__________ofDolly.4.The__________ofDolly.5.__________ofapplicationtoclonehumanbeings.twomajorusesproblemseffectTaskB.GetthemainideaofeachparagraphdefinitionControversyargumentsTask3Scanning(T/F)①Cloningmeansmakingacopyofananimaloraplant.()②Gardenerscanmakealotofmoneybycloningplants.()③Cloninganimalsisascomplicatedascloningplants.()④Dollythesheepwasthefirstsuccessfulcloneofamammal.()⑤Naturalcloneshappeninanimalsaswellasinplants.()FTFTT1.Dollythesheep_____.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.

Task4CarefulreadingTaskA.MultiplechoiceB2.Itcanbeinferredfromthepassagethataclonedanimal_____.

A.usuallylivesaslongastheoriginalone

B.usuallyliveslongerthantheoriginalone

C.usuallydiesearlierthantheoriginalone

D.isusuallyashealthyastheoriginaloneC3.Whichofthefollowingisnotanadvantageofcloning?Cloningcanbeusedformedicalpurposes.Largequantitiesoffoodcanbeproducedbycloning.Cloningcanhelpkeepanimalsfrombecomingextinct.Famouspersonswhohavepassedawaycanbecloned.D4.Whatispeople’sfearabouthumancloning?Whichofthefollowingiswrong?ClonedHitlerswoulddoharmtotheworld.Clonedpeoplemaybekilledatwillformedicalaid.Awomanwouldhavedifficultyrecognizingherrealhusband.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.D5.Thewriter’sreactiontowardscloningis____.A.PositiveB.NegativeC.neutral6.Whatisthewritingstyle?A.Expositive(说明性的)

B.DescriptiveC.Argumentative(议论性的)

D.NarrativeTaskB.(pairwork)

DescribetheprocedureofcloningofDollythesheepaccordingtothepicturesontheblackboard.DiscussionIscloninggoodorbadforus?Advantages

Disadvantages

Team1and2Team3and4Task5Discussion(teamwork)AdvantagesofcloningAdvantagesofcloning1.toproducecommercialquantitiesofplants2.beusefulforresearchonnewplantspecies3.beusefulforresearchonanimals.4.tohelpcureseriousillnessesinhumans.DisadvantagesofcloningDisadvantagesofcloning1.maydeveloptheillnessesofolderanimals.2.maydieyoungerthanthedonoranimals.3.Evilleadersmaywanttoclonethemselvestoattaintheirambitions.4.maycausesomemoralandreligiousproblems.FemalesheepAprovidesan_________,the_______isremovedfromtheeggcell.FemalesheepBprovidesa_______cellfortheclone.Thenucleusfrom______andtheeggcellfrom______arejoinedusing__________.

Thecell_______andgrowsintoan________.Thentheembryoisputintofemale________,whobecomesthe________oftheclone.The_____isthecloneofthedonatedcellfromsheepBwhichpro