新人教选修8-Unit2-Cloning[全套课件]

Unit2Cloning人教版高中英语模块八Module8Unit2CloningPeriod1&2:幻灯片9-26页策划：《学生双语报》3Warmingup1.Howmuchdoyouknowaboutclone?Whatisclone?Itisawayofmakinganexactcopyofanotheranimalandplant.策划：《学生双语报》4克隆”一词源于“Clone”的音译，指的是人工诱导动、植物的无性繁殖过程，这门生物技术就叫克隆技术。无性繁殖是指不经过雌雄两性生殖细胞的结合，只由一个生物体产生后代的生殖方式，如：由植物的根、茎、叶等经过压条或嫁接等方式产生新个体。绵羊、猴子和牛等动物没有人工操作是不能进行无性繁殖的。Lookatthefollowingpicturesandanswerthequestions:1.It’sthemostfamoussheepintheworld.DoyouknowhowDollyisdifferentfromothersheep?Shewasclonedwhiletheotherswerebornnaturally.Itisthecopyofanothersheep.策划：《学生双语报》62.DoyouwanttobeclonedornotWhy?3.Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.策划：《学生双语报》7thetwinsarenaturalclonesThetwinswerebornatthesametime策划：《学生双语报》8Dolly是世界上第一例用体细胞─乳腺上皮细胞,通过细胞核移植技术,在复杂的人工操作下,得到的一只小绵羊。策划：《学生双语报》9一株草莓依靠它沿地“爬走”的匍匐茎,一年内就能长出数百株草莓苗策划：《学生双语报》10富贵竹插枝即活仙人掌每块落地就生根策划：《学生双语报》11策划：《学生双语报》12Inthisclasswe’lllearnapassageaboutcloning,butbeforewecometothetext,canyouguesshowacloneisproduced?Pre-reading(3ms)Thecloningofplantsissimpleandrelativelyeasy.Itcanbedonebytakingcuttings(man-madecloning)orlettingtheplantproduceitsownrunners(naturalcloning).Thecloningofanimalsismorecomplicated.Itwasnotachieveduntil1996andisfullyexplainedinthepassagewe’lllearntoday.策划：《学生双语报》14Skimming（略读）:matchthemainideawitheachparagraph（段落大意连连看）A.Twomajorusesandtheprocedureofcloning.B.Cloningisawayofmakinganexactcopyofanotheranimalorplant.C.TheeffectofDollythesheep.D.Itisforbiddentoclonehumanbeings.E.Theproblemofdollythesheep.Para.1Para.2Para.3Para.4Para.5_______________(meaning)_________________________Reading–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____________________.dieyoungerproduceplantsqualityforsaleleaderusefulEvilplantspeciesmoralobjectionsendangeredanimalsnewPractice–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.Usefulstructure(20ms)策划：《学生双语报》27Unit2CloningGrammar策划：《学生双语报》28语法精解(一)1.同位语theAppositive同位语是句子成分的一种,它位于名词、代词后面,说明它们的性质和情况,它可以由名词、代词、名词性短语或从句充当。策划：《学生双语报》29同位语的表现形式有以下几种：(1)名词Tom,ourmonitor,isahandsomeboy.(2)代词Imyselfwilldotheexperiment.(3)数词Sheistheoldestamongthemsix.策划：《学生双语报》30(4)从句Hetoldmethenewsthattheplanehadexploded.他告诉我飞机爆炸的消息。(5)由suchas,thatis引导Somesubjects,suchasmathsandphysics,areverydifficulttolearn.某些学科,例如数学和物理,是很难学的。策划：《学生双语报》31(6)由of引导ThecityofBeijinghasbeengreatlychangedsince2000.自从2000年以来,北京市发生了很大的变化。策划：《学生双语报》32(7)由or引导Thefreezingtemperature,orfreezingpoint,isthetemperatureatwhichwaterfreezesunderordinarypressure.结冰温度即冰点,是水在常压下结冰时的温度。策划：《学生双语报》33一.指出下例句子划线部分是什么句`子成份。1.ThereisgoingtobeaChinesefilmtonight.()2.SheistoleaveforShanghaitomorrow.()配套练习(一)主语谓语策划：《学生双语报》343.Herwishistobecomeateacher.()4.He,mybrother,managedtofinishtheworkintime.()5.Tomcametoaskmeforadvice.()表语同位