公开课Unit2Cloning省公开课金奖全国赛课一等奖微课获奖课件

ReadingCloning:1/28Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.Discussion2/28一株草莓依靠它沿地“爬走”匍匐茎,一年内就能长出数百株草莓苗Naturalclone3/28TwinsTheyarebornnaturallyandidenticalinsexandappearance.Naturalclone4/28Dolly是世界上第一例用体细胞─乳腺上皮细胞,经过细胞核移植技术,在复杂人工操作下,得到一只小绵羊

。5/28Whatisaclone?Howisacloneproduced?6/28Reading

PleaseListentothetape

andgetthemainidea,andthenfinishthefollowingexercisesingroups.7/28Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenC.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.主旨大意8/282.WhichofthefollowingstatementsaboutcloningisNOTtrueaccordingtotext?

__A.Cloningissomethingthathasbeendevelopedquiterecently.B.Twinsthatlookexactlythesameareoriginallyfromthesameegg.C.Cloningisusedbygardenerstomakemoremoney.D.Animalcloningismuchmoredifficultthanplantcloning.细枝末节A9/283.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailedB10/284.Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.12推理判断11/285.DollythesheepA.lookedexactlylikethesheepthatprovidestheeggB.wastheexactcopyofthesheepthatprovidesthenucleusC.lookedlikethesheepthatgavebirthtoitD.hadthecharacteristicsofallthreesheep12/286.Whataboutthewriter’sattitudetowardcloninginthispassage?A.Objective(befair)

B.Negative(beagainstit)C.Positive(beinfavorofit)theauthordoesnotstateany

personalopinionaboutcloning.Because_________________________________________________________________观点态度13/28Mainideas

Readthepassageandfindoutthemainideaofeachparagraph.14/28Para.1

ThedefinitionofcloningPara.2

Themajorusesand

proceduresofcloningPara.3

TheproblemsofDollyPara.4

TheeffectofDollyPara.5

People’sreactionto

cloning15/2816/28

“多利”诞生标志着克隆研究取得新进展和重大突破,而且这个结果证实:动物体中执行特殊功效,含有特定形态所谓高度分化细胞与受精卵一样含有发育成完整个体潜在能力。也就是说,动物细胞与植物细胞一样,也含有全能性.“多利”诞生有什么重大意义和影响？17/281996cloningsheeps18/28cloningcattle19/28年4月16日美国第一头克隆牛“艾米”产下牛犊喜作妈咪20/28我国成功繁殖克隆兔

体形要比普通兔大许多年5月中旬成功地繁殖了一只胚胎细胞克隆兔。21/28cloningcats22/28第一只克隆宠物猫克隆马及其“母亲兼姐姐”23/28cloningdogs