人教版Book8-Unit-2-Warming-up-and-reading名师公开课市级获奖课件

Cloning高二英语Book8Unit2第一节WarmingupandreadingCloning高二英语Book8Unit2第一节Dolly(5Jul.1996–14Feb.2003)theworld’smostfamoussheep

Dolly(5Jul.1996–14Feb.2Dr.IanWilmutandDollyDr.IanWilmutandDollyCloningisawayofmakinganexactcopyofanotheranimalorplant.Itincludesnaturalcloningandman-madecloning.

Whatiscloning?CloningisawayofmakinganWhatdoyouthinkofhumancloning?WhatdoyouthinkofhumancloWhat’syouropinionofclonedfood?What’syouropinionofclonedHaveyoueverwishedyoucouldhaveacloneofyourselftodohomeworkwhileyouhadarestorwentoutwithyourfriends?HaveyoueverwishedyoucouldAcloneisananimalorplantproducednaturallyorartificiallyfromthecellsofanotheranimalorplantandisexactlythesameasit.Whatisaclone?Pre-readingAcloneisananimalorplantHowisacloneproduced?Thecloningofplantsissimpleandrelativelyeasy.Itcanbedonebytakingcuttings(man-madecloning)orlettingtheplantproduceitsownrunners(naturalcloning).Thecloningofanimalsismorecomplicated.Itwasnotachieveduntil1996andisfullyexplainedinthefirstreading.Howisacloneproduced?TheclWhatbenefitscanhumansgainfromcloning?Medicalcloningcanhelpcureseriousillnessesthatruinone’squalityoflife.Itcanhelpinfertilepeoplehavebabies.WhatbenefitscanhumansgainMWhatproblemsmayarisewhenhumansarecloned?Peoplemaywanttoclonethemselvessotheycanliveforever.Peoplemaywanttoclonedeadchildren.Peoplemaywanttoclonetheirfavouritepets.WhatproblemsmayarisewhenhNewwordsasomaticcell：体细胞Thiscellistakenfromtheskinofamammal.Ithasthegenswhichcanmakeacloneidenticaltotheanimalthatdonatedthesomaticcell.

2.anucleus：细胞核apartofthecellcontainingDNAandRNAandresponsibleforgrowthandreproductionNewwordsasomaticcell：体细胞2.3.anembryo：胚胎Thisisabundleofgrowingcellswhichhavenotyetbecomeaparticularanimal.Allembryoslookthesame.Onlylaterdevelopmentturnsthemintocows,sheeporcats.inembryo在酝酿；(考虑/计划)初期;萌芽时期3.anembryo：胚胎Fastreading

What’sthetextmainlyabout?It’smainlyaboutcloningargumentsaboutanimalcloningandconcernsaboutitsfuture.FastreadingWhat’sthetextmCarefulreading

Readthetextandchoosehebestanswers.WhenwasDollythesheepcloned?A.In2006.B.In2002.C.In1996.D.In1998.2.Accordingtotheprocedurechart,______providedthenucleusforDollythesheep.A.SheepA.B.SheepB.C.SheepC.D.None.CCCarefulreadingReadthetext3.Generally,anoriginalsheeplive_____yearsold.A.10B.12C.13D.6.5C4.Itcanbeinferredfromthepassagethataclonedanimal________.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallydiesearlierthantheoriginaloneD.isusuallyashealthyastheoriginaloneC3.Generally,anoriginalshee5.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Famouspersonswhohavepassedawaycanbecloned.D5.Whichofthefollowingisn6.Whichofthefollowingiswrong?A.Clonedpeoplewouldliveforever.B.Clonedpeoplemaybekilledatwillformedicalaid.C.Awomanwouldhavedifficultyrecognizingherrealhusband.D.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.D6.WhichofthefollowingiswNewexpressionsDolly’sillnessesweremoreappropriatetoamucholderanimal.TheunderlinedwordsindicatethatDolly’sillnesswerewhatonewouldexpecttofindinanolderanimal.Inotherwordsayounganimal,likeDolly,shouldnothavebecomeillwiththesediseasesuntilshewasmucholder.NewexpressionsDolly’sillnes2.thesamearbitraryfateThisphrasemeansthatthemiceandDollythesheephadnochoicebuttodieyoung.Nooneimaginedthatthiswouldhappenandsonoonecouldpreventit.2.thesamearbitraryfateIscloningbeneficialorharmfultous?Advantages

VS.

DisadvantagesDiscussionIscloningbeneficialorharmfGroupworkSituation:Imagineyou’reinterviewingafamousscientistabouttheiropinionsofcloning.

Doyouthinkitiswiseto…?What’syouropinionof…?Ithinkyoushould…Iagreewithyouthat…Iwouldneveraccept

…GroupworkDoyouthinkitis1.SurftheInternetformoreaboutcloning;2.Reviewthetextandpickoutthedifficultlanguage