【互助课堂】人教版高中英语选修8教学课件：Unit 2 Period 1 Reading.ppt

unit2cloning reading 2 3 1 掌握本课重点单词 短语和句式 2 让学生阅读理解什么是克隆 多莉羊的诞生与死亡以及由此引发的争论 3 进一步训练学生阅读 找读 细读 归纳要点 对比等阅读技巧 把握篇章中心内容 获取关键信息 并能分析 判断作者对克隆的态度和见解 本课首先向学生图片展示20世纪的十大顶级发明 来引出本单元的话题 克隆 随后是一段有关克隆的电影截频用以激发学生的阅读兴趣 然后展示草莓无性繁殖 插值繁殖 人类双胞胎 克隆羊多莉等图片 要求学生小组讨论 了解两种不同的克隆 自然克隆与人工克隆 接下来是本课的重点环节 reading 首先进行快读 归纳段落大意以及文章的大意 并回答相应的问题 随后是细读 布置相应的任务 训练学生查找具体信息的能力 并对文章主要环节 多莉羊的诞生深入阅读 细读过程中分别采用独立阅读 小组讨论等方法 最后 对文章进行总结填空 加深学生对全文的把握 最后对文章的长难句进行分析 homework 分析讨论克隆技术的利与弊 本节阅读课采用课前讨论热身 快读 细读 小组讨论等方法 使学生了解克隆这门生物技术 并进一步引发学生对克隆动物健康的关注以及对克隆技术发展前景的再思考 top10inventionsin20thcentury no 10 atomicbomb no 9 spaceshuttle no 8 television no 7 artificialsatellite no 6 aspirin airliner no 5 no 4 personalcomputer no 3 mobilephone no 2 internet no 1 cloning cloning astrawberryplant theplantproducesitsownrunners takecuttingsfromgrowingplantstomakenewones astem theyareidenticalinappearance andareproducedfromthesameoriginalegg thetwins itistheexactcopyofanothersheepandthefirstclonedmammal dollythesheep没爹没娘的多莉羊 cloningisawayofmakinganexactcopyofanotheranimalorplant itcanbedividedintonaturalcloneandman madeclone anaturalcloneisonethatoccursinnatureandaman madecloneisonethatisprocuredthroughhumanintervention 介入 干预 what sclone mainideaofeachpara scanning thebirthanddeathofdolly scientistsareconfusedaboutthefutureofclone whatisthecloning controversybroughtbydolly twomajorusesofcloning 2 3 1 4 5 1 themainideaofthetextis a animalcloningisveryvaluableandcanbenefittheworld b animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden c animalcloningiswelldevelopedbecausedollythesheepwasborn d animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture choosetherightansweraccordingtothetext 2 thecloningofdollythesheepsucceededbecause a itseasiertocloneasheepthanotheranimalsb thescientistsweredeterminedandworkedhardwithpatiencec thescientistswererewardedandgotlotsofmoneyd manyotherattemptstoclonemammalsfailed 3 thesheepthatdonatedthesomaticcellmostprobablylived years a 3b 6c 9d 12 推理判断 4 wecaninferfromthelastthreeparagraphsthat thenormaldevelopmentofdollyhadnoeffectonthecloningofotherspecies b dolly sseriousdiseaseandfinaldeathdisturbedthewholeworld c dollysuccessfullyclonedanewlambwiththehelpofcloningscientists d therewereargumentsaboutanimalsaboutanimalcloningandconcernsaboutthefutureofcloning 5 asforthecloningprocedureofdollythesheep allofthefollowingaretrueexcept a thelambisthecloneofthedonatedcellfromsheepbb electricityisneededc femalesheepbprovidesaneggcelld threefemalesheepareused 6 fromthelastparagraphweknowthat a cloningwillcometoanendbecauseofobjectionsb clonedhumanbeingswillbeproducedinthenearfuturec manycountrieswillusecloninginawisewayd alltheresearchintohumancloningwillbeforbidden true or false 1 cloningmeansmakingacopyofananimaloraplant 2 gardenerscanmakealotofmoneybycloningplants 3 cloninganimalsisascomplicatedascloningplants f t f 4 dollythesheepwasthefirstsuccessfulcloneofamammal 5 naturalcloneshappeninanimalsaswellasinplants t t theprocedureworksofdollythesheep femalesheepaprovidesaneggcell thenucleusisremovedfromtheeggcell theeggcellisreadyforanewnucleus femalesheepbprovidesasomaticcell thenucleusistakenoutofthesomaticcell thenucleusandtheeggcellarejoined thecelldividesandgrowsintoanembryo theembryoisputintofemalesheepc dollythesheepiscreated trytofindoutthedetailedinformationandfillintheblanks makinganexactcopy commercial plantsspecies animals straightforward complicated dollythesheep breakthrough objections theproblemsofdollythesheep itopenedeverybody seyestothepossibilityofusingcloningtocure andevenproduce humanbeings normally natural 6 original imagination seriousillnesses media alamb encouragingnews itseemedtodevelop andproduced ina way disturbingnews itlivedfor years halfthelengthofthelifeofthe sheep itsappearanceraisedastormof andhadagreatimpactonthe andpublic theeffectofthedollysheep moral forbade themselves accumulate challengeyourself 1 inthesecondparagraph theword straightforward means a uncomplicatedb honestc frankd difficult2 itsuddenlyopenedeverybody seyestothepossibilityofusingcloningtocureseriousillnessandeventoproducehumanbeings translation 它突然打开了人们的眼界 看到了有可能利用克隆技术来治疗重病 甚至还有可能克隆出人类 challengeyourself 3 inanunfortunateway themiceanddollysheephadnochoicebuttodieyoung nooneimaginedthatthiswouldhappenandsonoonecouldpreventit findasentencewhichhasthesimilarmeaning sadlythesamearbitraryfateaffectedotherspecies suchasclonedmice 4 whatisthewritingstyle a expositive 说明性的 b descriptivec argumentative 议论性的 d narrative discussion thewriter sreactiontowardscloningis a positiveb negativec neutral learningtips thepassageiswrittenintheexpositivestyle thatistosaythetextisinthethirdpersonandinfactualandformallanguage itgivesdifferentpointsofviewanddoesnottrytopersuadethereadertomakeuphis herownmind whereisitleadingus conclusion cloneisawayofmakinganexact ofanotheranimalorplant cloninghavetwo uses firstly gardenersuseitallthetimetoproduce quantities secondly itisvaluableforresearchonnewplant andformedicalresearchonanimal