高二英语unit 2reading and language points课件 人教版 课件VIP免费

Unit2CloneReadingPre-reading1.Whatisclone?2.Howiscloneproduced?3.Whatbenefitscanhumangainfromcloning?4.Whatproblemsmayarisewhenhumanbeingsarecloned?1.Whatisclone?Cloneisawayofmakinganexactcopyofanotheranimalandplant.2.Howiscloneproduced?Thishappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones,andwhensmallpartsofaplantaretakenandgrowninalaboratory.Italsohappensinanimalswhentwinsidenticalinsexandappearanceareproducedfromthesameoriginalegg.3.Whatbenefitscanhumangainfromcloning?4.Whatproblemsmayarisewhenhumanbeingsarecloned?Itcanhelpcurediseasesandcanhelpcoupleswhohavenobabytobearanewbaby.TheremaybemorebadpeoplelikeHitler.While-readingSkimandsumupthemainideaofeachparagraph.Para.1cloningisawayofmakinganexactcopyofanotheranimalorplant.Para.2cloninghavetwomajoruses.Para.3TheproblemsofDollyPara.4TheeffectofDollyPara.5Itisforbiddentoclonehumanbeing.1.Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenC.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.2.WhichofthefollowingstatementsaboutcloningisNOTtrueaccordingtotext?____A.Cloningissomethingthathasbeendevelopedquiterecently.B.Twinsthatlookexactlythesameareoriginallyfromthesameegg.C.Cloningisusedbygardenerstomakemoremoney.D.Animalcloningismuchmoredifficultthanplantcloning.3.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.B.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailed4.Thelambisthecloneofthecellfromsheepbecause_____.A.itprovidestheeggcellB.itgivesbirthtothelambC.itprovidesthenucleusD.itisafemalesheep5.Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.12Post-readingFillinthechartProblems/dangersofcloningAdvantagesofcloningAnimalclonesmaydeveloptheillnessesofolderanimals.Medicalcloningcouldproducecuresforseriousdegenerativeillnessesinhumans.AnimalclonesmaydieYoungerthanthedonoranimals.Cloningplantscanproduceplantsofsimilarqualityforsale.Evilleadersmaywanttoclonethemselves.Cloningplantscanbeusefulforresearchonnewplantspecies.Therearemoralobjectionstocloninghumanbeings.Cloningcanhelpsaveendangeredanimals.Discussion1.Whatdoyouthinkisthewriter’sviewinthisreadingpassage?2.What’syouropinionofcloning?Givereasons.Ithinkthewriterisimpartialbecausehe/shedoesnotstateanypersonalopinionaboutcloning.B8Unit2CloningLanguagepoints•1.Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.•differvi.不一致,不同,相异,不同意,意见相左•常见的搭配有：•sbdifferfrom/withsbon/about/over/uponsth•AandBdifferin…•AdiffersfromBWarmingup•她的方法跟我的没有很大不同。•Hermethoddoesn’tdiffermuchfrommine.•现代飞机跟早期的在很多方面有所不同。•Modernairplanesdifferfromearlyones.•对于如何解决问题,我跟他的意见不一致。•Idifferwithhimonhowtosolvetheproblem.•关于道德标准,他们的见解不同。•Theydifferwitheachotheronmoralstandards.•即时练习：•用介词from,with,on,about,upon或in填空。•(1)Wediffer_________him______________thatquestion.•(2)Thetwonationsdiffer______culture•andreligion.•(3)Theclimateherediffer___________•thatoftheSouth.•differencen.差异,差别,分歧,争论,差额•differentadj....