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ID:41348359
大小:3.41 MB
页数:72页
时间:2019-08-22
《高中英语Unit2《Cloning》课件_Warmingup&Reading新[人教版]选修8》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Unit2CloningPeriod1Warmingup&ReadingWhatwillyouthinkof?cure...DollytwinsthesamegenecloningAstrawberryplantTheplantproducesitsownrunners.AstemTakecuttingsfromgrowingplantstomakenewones.Theyareidenticalinsexandappearance,whoareproducedfromthesameoriginalegg.Shewasc______whiletheotherswerebornnatura
2、lly.Itistheexactcopyofanothersheepandthefirstclonedmammal.differentfromlonedDollythesheepItsnameisAndi,thefirstgeneticallymodifiedmonkey.DogSnuppywascreatedbyKoreanandAmericanscientistsCloningisawayofmakinganexact_____ofanotheranimalorplant.WhatisCloning?copyWhatisthedifferenceamongthem?Naturalcl
3、oneMan-madeclonecloneClone,alsocalledreproduceasexually(无性生殖/繁殖),isthecreationofcellsorwholeanimalsusingDNAfromasingle“parent”,withoutusingthenormalreproductive(有性生殖)process.TheclonehastheexactlysameDNAtotheparent.Itincludesnaturalandman-madeclone.What'sclone?PredictionWhatdoyouthinkthearticleisa
4、boutbyreadingthisheadline?CLONING:WHEREISITLEADINGUS?Whatisthemainideaofthepassage?Thepassagetellsusthatanimalcloningraised__________andscientistsarenotsureaboutits______.argumentsfutureWhatisthewritingstyle?Expositive(说明文)Descriptive(记叙文)C.Argumentative(议论文)Skimming___.Cloninghastwomajorusesands
5、uccessfulclone.___.Cloningisawayofmakinganexactcopyofanotheranimalandplant(definition)___.TheeffectofDolly.___.Itisforbiddentoclonehumanbeings.___.TheproblemsofDolly.12345Definition2majorusesofcloningCloningprocedureThefirstsuccessfulanimalcloneItisawayof__________________ofanotheranimalandplant.
6、1)toproduce___________quantitiesofplants.2)Itisvaluableforresearchonnew______________andmedicalresearchon________.Cloningplants______________whilecloningofanimalsis___________Thecloningof_______________,a_____________incloningtech.makinganexactcopycommercialstraightforwardbreakthroughplantsspecie
7、sanimalsDollythesheepcomplicatedTrueoffalse:Fourfemalesheepparticipateinthecloningofanewsheep.Electricityisneededintheprocedure.SheepBprovidesasomaticcellfortheclone.ThelambistheexactcopyofsheepA.TFTFWhichofthefollowin
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