高中英语导学案与练unit2cloning知识讲解话题语言应用——克隆

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1、话题语言应用——克隆编稿：牛新阁审稿：王春霞语言积累交际用语1．接受与拒绝　　I’mhappytoaccept...but....我很高兴接受......，但是......　　Ican/cannotacceptyourargumentbecause...我能/不能接受你的说法，因为......　　Isupport...because...我支持......因为......　　No,Ican’tagreewith...because...不，我不同意......因为......　　Iagreewith/couldneveragreeto...because.

2、..我同意/永远也不同意......因为......　　Howcanyoubelievethat?你怎么能相信那事呢？　　Yourargumenthasconvincedmebecause...你的理由说服了我，因为......　　Iwouldliketoagreewithyoubut...我想同意你的看法，但是......　　Doyouthinkitiswiseto...?你认为做......明智吗？　　No,thatisnotreasonablebecause...不，那不合理，因为......　　Isitfairto...?做......公平吗？　　

3、Idon’tcareforyourideasbecause...我不接受你的观点，因为.....　　Idon’tmindbut...我不介意，但是......2．表扬与鼓励　　Yourideassoundveryencouragingtome．你的观点在我看来很鼓舞人心。　　That’sagood/greatidea．好主意。　　Welldonetoyoufor...做得好......话题语句（1）有关克隆：1.What’scloning?Cloningisawayofmakinganexactcopyofanotheranimalorplant.2.两种

4、克隆：man-madeclones人工克隆naturalclones自然克隆3.Howacloneisproduced?Thecloningofplantsissimpleandrelativelyeasy.Itcanbedonebytakingcuttings(man-madecloning)orlettingtheplantproduceitsownrunners(naturalcloning).Thecloningofanimalsismorecomplicated.Itwasnotachieveduntil1996.4.Dollythesheepw

5、asthefirstsuccessfulcloneofamammal（哺乳动物）.5.Animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.要点提示：relatively相对来说cutting插枝runner蔓，纤匐枝complicated结构复杂的Cloneanextinctanimal？克隆灭绝动物？1.Whyshouldn’tyoucloneanextinctanimalunlessthereisenoughdiversityinthegroup?Therewillnotb

6、eenoughgeneticvariationinthegrouptobeabletoresistnewillnesses.2.Whyisitwrongtocloneanextinctanimalifitwouldhavetoliveinazoo?Itisnotagoodideatocloneananimalthatwouldhavetoliveinazoobecauseitisnotasuitablehabitattodevelopandincreaseitsnumbers.Thezooisnotanaturalenvironmentforawildan

7、imal.3.Whycan’tyouclonetheDNAofanimalsthathavebeenextinctlongerthan10,000years?TheDNAofanimalsmorethan10,000yearsoldisnotsuitableforcloning,foritcan’tsurvivesolong.要点提示：extinct灭绝的diversity多样性variation变化（varyv.变化）habitat栖息地survive幸存Questionstodiscuss:1.Doyousupporttheideaofproducin

8、ghumanembryos(胚胎)formedicalpurpos