Unit 2 Cloning

•EnglishSong•EnglishClass•LanguageDataBankLookatthefollowingpicturesandanswerthequestions:1.It’sthemostfamoussheepintheworld.DoyouknowhowDollyisdifferentfromothersheep?Warmingup(5ms)Shewasclonedwhiletheotherswerebornnaturally.Itisthecopyofanothersheep.2.Whatiscloning?Cloningisawayofmakinganexactcopyofanotheranimalorplant.3.Arethefollowingclonesthesame?Ifnot,whatisthedifference?NO.Thefirstfourareman-madeclones,theresttwoarenaturalclones.Inthisclasswe’lllearnapassageaboutcloning,butbeforewecometothetext,canyouguesshowacloneisproduced?Pre-reading(3ms)Thecloningofplantsissimpleandrelativelyeasy.Itcanbedonebytakingcuttings(man-madecloning)orlettingtheplantproduceitsownrunners(naturalcloning).Thecloningofanimalsismorecomplicated.Itwasnotachieveduntil1996andisfullyexplainedinthepassagewe’lllearntoday.金手指考试网年金手指驾驶员考试科目一科目四元贝驾考网–IScanning(5ms)Writetheletter“T”ifthestatementistrue.Write“F”ifitisfalse.1.Cloningmeansmakingacopyofananimaloraplant.2.Gardenerscanmakealotofmoneybycloningplants.3.Cloninganimalsisascomplicatedascloningplants.FFT4.Dollythesheepwasthefirstsuccessfulcloneofamammal5.Naturalcloneshappeninanimalsaswillasinplants.TT1.Dollythesheep_____.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.＊Reading–IISkimming(5ms)Choosetherightansweraccordingtothetext.2.Itcanbeinferredfromthepassagethataclonedanimal_____.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallyliveslongerthantheoriginaloneD.isusuallyashealthyastheoriginalone＊3.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Famouspersonswhohavepassedawaycanbecloned.＊4.Whatispeople’sfearabouthumancloning?Whichofthefollowingiswrong?A.ClonedHitlerswoulddoharmtotheworld.B.Clonedpeoplemaybekilledatwillformedicalaid.C.Awomanwouldhavedifficultyrecognizingherrealhusband.D.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.＊Reading–IIIDetailreading(8ms)Fillinthechartusingtheinformationfromthetext.ProblemsordangersofcloningAdvantagesofcloningAnimalsmay____________________ofolderanimals.Medicalcloningcould_____________forseriousdegenerative(变质的）________inhumans.developtheillnessesproducecuresillnessesAnimalclonesmay_______________thanthedonoranimalsCloningplantscan_______________ofsimilar_____________________.________________maywanttoclonethemselves.Cloningplantscanbe_______forresearchon_____________________.Thereare__________________tocloninghumanbeings.Cloningcanhelpsave____________________.dieyoungerproduceplantsqualityforsaleleaderusefulEvilplantspeciesmoralobjectionsendangeredanimalsnewReading–IVIntensivereading(7ms)Readtheletteragain,thentrytofindthemainideaofeachparagraph.1.Cloningis______________________________2.Cloninghas____________uses.3.The_________ofDolly.4.The________ofDolly.5.Itis__________toclonehumanbeings.awayofmakinganexactcopyofanotheranimalandplant.problemstwomajoreffectforbiddenPractice–discussion(8ms)Chooseoneofthefollowingquestionstodiscussingroups.Theleaderofeachgroupshouldwritedowneverymember’sopinion,thenthevolunteerswillshowyourgroupworktothewholeclass:Questions:1.Doyousupporttheideaofproducinghumanembryos(胚胎)formedicalpurposes?Why?2.Doyouthinkitagoodideatouseclonedhumansfororgan(器官)transplants?Why?3.Doyouthinkaclonedhumanshouldhavehumanrights?Why?4.Doyouthinkclonedhumanswillhavethesametalentsastheoriginalones?Why?AssignmentSurftheInternettofindmoreinformationaboutcloningandyouareexpectedtopresentittoyourclassmatesinthenextclass.Unit2CloningPeriod3:幻灯片27-48页Checkinganswer–I(2ms)AnswerkeysforEx.1onPage13:1.differ2.castdown3.accumulated4.undertake5.exact6.altogetherCheckinganswer–II(2ms)AnswerkeysforEx.2onPage13:1.straightforward2.arbitrary3.commercial4.Areyouinfavourof5.procedure6.Iobject7.willforbidCheckinganswer–III(3ms)AnswerkeysforEx.3onPage13:1.undertake2.controversial3.satisfaction4.Castdown5.breakthrough6.accumulateCheckinganswer–IV(2ms)AnswerkeysforEx.4onPage14:1.C2.F3.D4.E5.B6.ACheckinganswer–V(10ms)AnswerkeysforEx.2(Translation)onPage56(Workbook):1.Myrabbitgavebirthtofourexactlyidenticalbabiesseveraldaysago.2.Fromtimetotimewethinkthathumanscanusecloningtobringextinctanimalsbacktolife.3.Theplantodevelophumanclonesisboundtoraisecontroversialquestions.4.Shortlyafterheretired,theoldmanwroteanovelabouthischildhood.5.Sheisunabletospeakaloudbecauseshehasjusthadanoperationonherthroat.6.Edwardwasmuchcastdownbythenewsthathecouldn’tobtainthegraduationcertificate.7.Hiseffortspaidoffwhenthedoctorsawthepatientopenedhiseyes.8.Thescientistmadetheassumptionthatthereisnoanimallifeonotherplants.Checkinganswer–V(10ms)AnswerkeysforEx.2(Translation)onPage56(Workbook):Usefulstructure(20ms)同位语从句与that引导的定语从句的区别：1、同位语从句与名词之间在逻辑上是“主语+be+表语”的关系。该名词是需要做特殊说明的抽象名词。例如：a)听说他们的队赢了，他们很高兴。___________