高中英语 Unit 2 Cloning Reading课件3 新人教版选修8.ppt

period1 2warmingupandreadingi cloning lookatthefollowingpicturesandanswerthequestions it sthemostfamoussheepintheworld doyouknowhowdollyisdifferentfromothersheep warmingup 5ms shewasclonedwhiletheotherswerebornnaturally itisthecopyofanothersheep whatiscloning cloningisawayofmakinganexactcopyofanotheranimalorplant man madecloningexamples cactus strawberry pendulumorchid 吊兰 naturalcloningexamples 1 cloningmeansmakingacopyofananimal 2 gardenerscanmakealotofmoneybycloningplants 3 cloninganimalsisascomplicatedascloningplants f t f torf t t 4 dollythesheepwasthefirstsuccessfulcloneofamammal 5 naturalcloneshappeninanimalsaswellasinplants 6clonecanbefrombothnaturalcloneandman madeclone t 7onlystrawberriesandcactus 仙人掌 arenaturalclones f step3 prediction whatdoyouthinkthearticleisaboutbyreadingthisheadline cloning whereisitleadingus 1 whatisthemaintopic a cloning b dollythesheep c itwillleadustosomeplaces scanning cloninghastwomajoruses cloningisawayofmakinganexactcopyofanotheranimalandplant theeffectofdolly itisforbiddentoclonehumanbeings theproblemsofdolly 1 2 3 4 5 mainideaofeachparagraph cloningisawayofmakinganexactcopyofanotheranimalandplant para1 1 whatisaclone naturalclone 2 whendoesaclonehappen ithappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones inplants naturalclone 2 whendoesaclonehappen ithappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones inplants inanimals twinsareproducedfromthesameoriginaleggandareidenticalinsexandappearance 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 otherexamples naturalclone man madeclone inplants inanimals dolly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 nucleus becomplicated man madecloningexamples theimportanteventsincloninghistory in5000b c 谷物选种 in1978 thefirstcaseoftubeinfant 试管婴儿 appeared dollyandthefatherofdolly lanwilmut 伊恩 威尔姆 in1996 thefamoussheep dolly wasclonedsuccessfully in1998aclonedox in2002 thefirstclonedcatintheworld nowadays cloneddog mouse rabbit goat ox pigappeared chinabecometheseventhcountrythathastheabilitytoclonepigs aseriesofthingsarecloned mainidea cloninghastwomajoruses para2 firstly gardenersuseittoproducecommericalplants secondly itisvaluableforresearchonnewplantspeciesandformedicalresearchonanimals back discussingroups howlongdiddollylive howlongdoestheorginalsheeplive whataretheadvantagesofcloning whydidgovernmentsforbidresearchintohumancloning what syouropinion why mainidea theproblemsofdolly para3 1 thenewsthat 2 dolly sillnessesweremore amucholderanimal 3 dollylivedforsixyears thelifeoftheoriginalsheep dollyhadbecomeseriouslyillcame appropriateto halfthelengthof mainidea theeffectofdolly 1 dolly sappearanceraisedastormofobjections 2 itopenedeverybody seyestothepossibilityofusingcloningtocureseriousillnesses andevenproducinghumanbeings para4 ba mainidea itisforbiddentoclonehumanbeings para5 scientistswonderwhethercloningwillhelporharmus ba iscloningpeopleagoodthing orabadthing 克隆人是福音 还是恶兆 thinking 1 克隆技术现在还不成熟 克隆人可能有很多先天性生理缺陷 2 克隆人的身份难以认定 他们与被克隆者之间的关系无法纳入现有的伦理体系 反对克隆人 3 克隆技术有可能被滥用 成为恐怖分子的工具 4 从生物多样性上来说 大量基因结构完全相同的克隆人 可能诱发新型疾病的广泛传播 对人类的生存不利 1 不让我们克隆人 就是不让我们修正我们的错误 人类历史难道能够这样构造吗 纽约时报书评 2 当然应该 克隆 人 如果谁第一个掌握了这个技术 他就是我真正的 也是唯一的竞争对手 比尔 盖茨 支持克隆人 意大利狂人医生 安蒂诺里 冒死也要克隆人的科学家 布瓦瑟利耶 themainideaofthetextis animalcloningraisedarguments 引起争论 andscientistsarenotsureaboutitsfuture 主旨大意 2 whichofthefollowingstatementsaboutcloningisnottrueaccordingtotext a cloningissomethingthathasbeendevelopedjustrecently b twinsthatlookexactlythesameareoriginallyfromthesameegg c cloningisusedbygardenerstomakemoremoney d animalcloningismuchmoredifficultthanplantcloning 细枝末节 a 3 thecloningofdollythesheepsucceededbecause thedeterminationandpatienceofthescientistswasrewarded 细枝末节 4 thelambisthecloneofthecellfromsheepbecause a itprovidestheeggcellb itgivesbirthtothelambc itprovidesthenucleusd itisafemalesheep 1 inthesecondparagraph theword straightforward means a uncomplicatedb honestc frankd difficult 猜词 itcanbeinferredfromthepassagethat aclonedanimalusuallydiesearlierthantheoriginalone 推理 6 thesheepthatdonatedthesomaticcellmostprobablylived years a 3b