【优质课件】人教版高中英语选修8 Unit 2《Cloning》Using language优秀课件

UsingLanguageUsingLanguageWordspreviewresistmerelydecorationunablezebravt.抵抗；对抗

adv.仅；只；不过

n.装饰

adj.不能的；不会的

n.斑马Wordspreviewresistvt.抵抗；对抗argumentaloudreasonableobtainn.论据；论点；争论adv.大声地；出声地adj.合情理的；讲道理的；公道的vt.获得；得到Wordspreviewargumentn.论据；论点；争论WordspreExpressionspreviewfromtimetotimebringbacktolifepayoff不时；偶尔使复生取得好结果；取得成功；赔清Expressionspreviewfromtime克隆的进展

蛙:1962年，未成功

绵羊:1996年，多利（Dolly）

猕猴:2000年1月，Tetra，雌性

猪:2000年3月，5只苏格兰PPL小猪牛:2001年，Alpha和Beta，雄性猫:

2001年底，CopyCat(CC),雌性克隆的进展蛙:1962年，未成功

绵羊:1996年，小鼠:2002年

兔:2003年3-4月分别在法国和朝鲜独立地实现；

骡:2003年5月，爱达荷Gem，雄性；

6月，犹他先锋，雄性

鹿:2003年，Dewey

马:2003年，Prometea，雌性

狗:2005年，韩国首尔大学，史纳比小鼠:2002年

兔:2003年3-4月分别在法国和朝Pleaseenjoysomepicturesaboutdinosaurs.Pleaseenjoysome霸王龙霸王龙剑龙stegosaurs剑龙stegosaurs角龙ceratopsids角龙ceratopsids雷龙brontosaurus雷龙brontosaurus翼龙pterodactyl翼龙pterodactyl

ReadingTHERETURNOFTHEDINOSAURS?Reading1.Thewriterofthetext_____A.isexcitedbythepossibilityof cloningfierceandextinctanimalsB.believesthatextinctanimalscan bebroughtbacktolifebycloningReadthepassageandthenchoosethecorrectanswerstothebelowquestions.1.Thewriterofthetext_____C.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningtotheearthC.thinksitimpossibleoruns2.ThefilmJurassicParkispopularbecause_____.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itprovesveryinteresting2.ThefilmJurassicParkisp3.Whichofthefollowingistrue?____Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningmammals.3.Whichofthefollowingistr4.ThereasonswhyagroupofclonedanimalsalldieofthesameillnessdoNOTinclude____.A.theyhavethesamearrangement ofgenesB.thereisn’tenoughdiversityinthe groupforittoovercomeillnessesC.theillnessisanewoneD.theirarrangementofgenescannotresistthatnewdisease4.Thereasonswhyagroupof5.Wecaninferfromthetextthat____A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000year5.Wecaninferfromthetext

Readthepassageagainandanswerthequestions.1.Whyshouldn'tyoucloneanextinctanimalunlessthereisenoughdiversityinthegroup?

Therewillnotbeenoughgeneticvariationinthegrouptobeabletoresistnewillnesses.Readthepassageagainand2.Whyisitwrongtocloneanextinctanimalifitwouldhavetoliveinazoo?

Itisnotagoodideatocloneananimalthatwouldhavetoliveinazoobecauseitisnotasuitablehabitattodevelopandincreaseitsnumbers.Thezooisnotanaturalenvironmentforawildanimal.2.Whyisitwrongtoclonean3.Whycan'tyouclonetheDNAofanimalsthathavebeenextinctlongerthan10,000years?

TheDNAofanimalsmorethan10,000yearsoldisnotsuitableforcloning,foritcan'tsurvivesolong.3.Whycan'tyouclonetheDNADiscussion

Maythebestanimal

win!Nowinpairsdiscusswhichextinctanimalsdescribedbelowareworthrestoringbymeansofcloning.Chooseoneandusetheinformationtohelpyouarguewhythisanimalshouldberestoredtotheearth.DiscussionAuroch(1627)Largewildcattle;longhornsandhair;hairgoodformakingintoclothes;horncanbeusedfordecoration;needgrasslands.Auroch(1627)LargewildcattleDodobird(1755)Unabletofly;friendlyandnotharmful;largeeggsandtastymeatthatcouldbedevelopedforfood;needshotclimate.Dodobird(1755)Unabletofly;GreatAuk(1844)Verylargebirdthatcannotfly；livesbyandinthesea;feathersdonotabsorbwater;usefulforprotectingclothesfromwater.GreatAuk(1844)VerylargebirQuagga(1883)Skinlookslikeazebra;canbeusedfordecoration;meatverytasty;needswarmclimate.Quagga(1883)SkinlookslikeaLanguagepointsLanguagepoints1.Fromtimetotimepeoplesuggestthattheanimalsthathavedisappearedfromtheearth,likedinosaurs,canpossiblybebroughtbacktolifethroughcloning.人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。1.Fromtimetotimepeoplesfromtimetotime有时,间或,偶尔,=occasionally,nowandthen.Hecomesherefromtimetotime.

他时常到这儿来。

Thecarmanufacturerschangedthecarmodelsfromtimetotime.

汽车制造商不时地改变车的型号。fromtimetotime有时,间或,偶尔,将下列句子译成英语(1)他有时变得很没有道理。

____________________________________________(2)他们有时吵架。

____________________________HebecomesquiteunreasonablefromTheyquarrelfromtimetotime.timeto

time.将下列句子译成英语Hebecomesquiteunrebringbacktolife使复生Theyusedartificialrespirationtobringtheswimmerbacktolife.

他们用人工呼吸使游泳者苏醒过来。Anywayhewasdead,wecouldnotbringhimbacktolife.

横竖他死了，我们不能使他复生。bringbacktohealth

恢复健康bringbacktolife使复生bringb2....butotherswillsurviveandpassontheabilitytoresistthatdiseasetotheirchildren.

其他的将存活下来并传递给其后代抵抗这种病的能力。2....butotherswillsurviveresist作及物动词主要有三个义项:

抵抗,对抗;

抵挡,防止;

(与cannot,couldnot连用)无法抗拒,无法抵挡。resist作及物动词主要有三个义项:Theyresistedtheattack.他们抵抗那次攻击。Sheresistedbeingcarriedoff.她拒绝被带走。Shecouldnotresistthetemptation.她无法抗拒那项诱惑。Theyresistedtheattack.1.ThepopularityofthefilmJurassicPark,inwhichascientistclonesseveraldifferentkindsofextinctdinosaurs,proveshowinterestedordinarypeopleareinthesubject.

长难句分析1.Thepopularityofthefilm

电影《侏罗纪公园》的欢迎证实了普通人对这一话题是多么感兴趣,在该电影中一位科学家克隆了几种不同的恐龙。

inwhich引导定语从句,how引导宾语从句。电影《侏罗纪公园》的欢迎证实了普通人对这一话2.Itisuselesstocloneananimalifthereisnotenoughdiversityinthegroupforittoovercomeillnesses.该群中如果没有足够的多样性使它克服疾病,克隆动物就没有用。当动词不定式、动名词或从句作主语时,通常把它们放在谓语之后,而用it作句子的形式主语。2.Itisuselesstocloneana3.Diversityinagroupmeanshavinganimalswiththeirgenesarrangedindifferentways.群中的多样性指的是拥有基因排列方式不同的动物。

withtheirgenesarrangedindifferentways作定语,indifferentways以不同的方式。3.DiversityinagroupmeansListeningandSpeakingListeningandSpeaking

Iscloningcruel?ListenandseewhetheryouagreewithXiaoQingorMary.1.Readthesestatementsbeforelistening.Tickthosethatyouhear.

①Cloningwillbringdeadpetstolife.②Therewere627experimentsbeforeDollywassuccessfullyclone.Iscloningcruel?Listenan③Cloningmayproducemedicineorevenorgansofahumanbodytocureseriousillnesses.④Dollywas“middle-aged”whenshewasborn.⑤Soyourgrandmotherwouldbeabletostartherlifealloveragainandlivetoanoldage.③Cloningmayproducemedicine2.Listentothetapeagainandthenworkwithapartnertofillinthechart.Mary’sideasaboutcloningXiaoQing’sideasaboutcloning1crueltoanimals1scientistsaredoingawonderfuljob2makesthemdounnaturalthings

2maybringbackextinctanimals3itisa“deadend”3problemsbecauseitisanewscience2.ListentothetapeagainanMary’sideasaboutcloningXiaoQing’sideasaboutcloning4clonebornatageof“mother”4scientistsneedencouragement5weakensthespecies5itmayprovidemedicineforillnessesMary’sideasaboutcloningXiaoListeningTextISCLONINGCRUEL?XiaoQingandMaryBrownarediscussingwhethercloningiscrueltotheanimals.MB:XiaoQing,doyouthinkcloningiscruel?ListeningTextISCLONINGCRUEL

XQ:Whatdoyoumeanbythat?Thescientistsaredoingawonderfuljobandsoontheymaybeabletobringbackextinctanimalsorevenpeople’sfavouritepetsbacktolife.

MB:Yes,Qing,Iknow.Butdoesn’tthatseemstrangetoyou?Isitworthit?Ittook276experimentsbeforeXQ:WhatdoyoumeanbythaDollywassuccessfullycloned.ThinkofallthoselivecellsandeggsthatdiedinorderforDollytobeborn.Idon’tapproveofthat!

XQ:ButMary,bereasonable.Isn’titalwayslikethatwithanewscience?ThisisthewayyoulearntodoDollywassuccessfuthingsbetter.It’sjustthatthisonedealswithlivingthings.

MB:Isupposeso—buttheymaketheanimalsdounnaturalthings.Onepoorcowwasmadetogivebirthtoabison.Whatwasthepoorcreaturetothinkwhenissawitsbaby?thingsbetter.It’XQ:Idon’tquiteunderstandwhysomanypeopleareagainstcloning.Ithinkthescientistsneedalittleencouragement.Theyhavedonesomeamazingthingsandthinkofthebenefits.ProducinganimalsthatareanexactcopyoftheoriginalmayhelpmedicalscienceproduceXQ:Idon’tquiteunderstanmedicinesorevenorgansforseriousillnesses.

MB:Yes,I’veheardallthat.IagreewithitbutIdon’tagreewiththemethods.Idon’tthinkcloningisgoodfortheanimals.

XQ:Whynot?medicinesoreven

MB:Well,Ithinkit’sadeadend.Dollythesheepwas“middle-aged”whenshewasbornbecauseherDNAcamefromamiddle-aged“mother”.Cloningyourgrandmotherwouldmeanthenewbabystartedlifeasanoldlady!MB:Well,Ithinkit’sade

XQ:Areyousure?Ineverthoughtofthat!

MB:Anditalsoweakensthespecies.Clonesmeanthereislessvarietyinthespeciesandsoillnesseswillbecomemorecommonandtheanimalsmaydieout.XQ:Areyousure?Inevert

XQ:Ohdear!AndthatwasjustwhatyouandIweretryingtoavoid.IseeIshallhavetolookatthiswholecloningquestionagain!XQ:Ohdear!Andthatwasj

Whoseideasdoyouagreewith?Getreadytohaveaclassdiscussion.Thinkaboutthereasonsforyourpointofview.Useyourownideasaswellasthoseinthetext.Thesewordsandphrasesonpage18maybeusefulforyouduringthediscussion：DiscussionWhoseideasdoyouagreThat’sagoodidea.Icannotacceptyourargumentbecause…Isupport…because…No,Ican’tagreewith…because…Iagreewith…because….Howcanyoubelievethat?That’sagoodidea.Yourargumenthasconvincedmebecause…Iwouldliketoagreewithyoubut…Idon’tcareforyourideasbecause…No,thatisnotreasonablebecause….That’sagreatidea!Yourideassoundveryencouragingtome.Yourargumenthasconvincedme感谢各位老师！祝：身体健康万事如意感谢各位老师！祝：UsingLanguageUsingLanguageWordspreviewresistmerelydecorationunablezebravt.抵抗；对抗

adv.仅；只；不过

n.装饰

adj.不能的；不会的

n.斑马Wordspreviewresistvt.抵抗；对抗argumentaloudreasonableobtainn.论据；论点；争论adv.大声地；出声地adj.合情理的；讲道理的；公道的vt.获得；得到Wordspreviewargumentn.论据；论点；争论WordspreExpressionspreviewfromtimetotimebringbacktolifepayoff不时；偶尔使复生取得好结果；取得成功；赔清Expressionspreviewfromtime克隆的进展

蛙:1962年，未成功

绵羊:1996年，多利（Dolly）

猕猴:2000年1月，Tetra，雌性

猪:2000年3月，5只苏格兰PPL小猪牛:2001年，Alpha和Beta，雄性猫:

2001年底，CopyCat(CC),雌性克隆的进展蛙:1962年，未成功

绵羊:1996年，小鼠:2002年

兔:2003年3-4月分别在法国和朝鲜独立地实现；

骡:2003年5月，爱达荷Gem，雄性；

6月，犹他先锋，雄性

鹿:2003年，Dewey

马:2003年，Prometea，雌性

狗:2005年，韩国首尔大学，史纳比小鼠:2002年

兔:2003年3-4月分别在法国和朝Pleaseenjoysomepicturesaboutdinosaurs.Pleaseenjoysome霸王龙霸王龙剑龙stegosaurs剑龙stegosaurs角龙ceratopsids角龙ceratopsids雷龙brontosaurus雷龙brontosaurus翼龙pterodactyl翼龙pterodactyl

ReadingTHERETURNOFTHEDINOSAURS?Reading1.Thewriterofthetext_____A.isexcitedbythepossibilityof cloningfierceandextinctanimalsB.believesthatextinctanimalscan bebroughtbacktolifebycloningReadthepassageandthenchoosethecorrectanswerstothebelowquestions.1.Thewriterofthetext_____C.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningtotheearthC.thinksitimpossibleoruns2.ThefilmJurassicParkispopularbecause_____.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itprovesveryinteresting2.ThefilmJurassicParkisp3.Whichofthefollowingistrue?____Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningmammals.3.Whichofthefollowingistr4.ThereasonswhyagroupofclonedanimalsalldieofthesameillnessdoNOTinclude____.A.theyhavethesamearrangement ofgenesB.thereisn’tenoughdiversityinthe groupforittoovercomeillnessesC.theillnessisanewoneD.theirarrangementofgenescannotresistthatnewdisease4.Thereasonswhyagroupof5.Wecaninferfromthetextthat____A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000year5.Wecaninferfromthetext

Readthepassageagainandanswerthequestions.1.Whyshouldn'tyoucloneanextinctanimalunlessthereisenoughdiversityinthegroup?

Therewillnotbeenoughgeneticvariationinthegrouptobeabletoresistnewillnesses.Readthepassageagainand2.Whyisitwrongtocloneanextinctanimalifitwouldhavetoliveinazoo?

Itisnotagoodideatocloneananimalthatwouldhavetoliveinazoobecauseitisnotasuitablehabitattodevelopandincreaseitsnumbers.Thezooisnotanaturalenvironmentforawildanimal.2.Whyisitwrongtoclonean3.Whycan'tyouclonetheDNAofanimalsthathavebeenextinctlongerthan10,000years?

TheDNAofanimalsmorethan10,000yearsoldisnotsuitableforcloning,foritcan'tsurvivesolong.3.Whycan'tyouclonetheDNADiscussion

Maythebestanimal

win!Nowinpairsdiscusswhichextinctanimalsdescribedbelowareworthrestoringbymeansofcloning.Chooseoneandusetheinformationtohelpyouarguewhythisanimalshouldberestoredtotheearth.DiscussionAuroch(1627)Largewildcattle;longhornsandhair;hairgoodformakingintoclothes;horncanbeusedfordecoration;needgrasslands.Auroch(1627)LargewildcattleDodobird(1755)Unabletofly;friendlyandnotharmful;largeeggsandtastymeatthatcouldbedevelopedforfood;needshotclimate.Dodobird(1755)Unabletofly;GreatAuk(1844)Verylargebirdthatcannotfly；livesbyandinthesea;feathersdonotabsorbwater;usefulforprotectingclothesfromwater.GreatAuk(1844)VerylargebirQuagga(1883)Skinlookslikeazebra;canbeusedfordecoration;meatverytasty;needswarmclimate.Quagga(1883)SkinlookslikeaLanguagepointsLanguagepoints1.Fromtimetotimepeoplesuggestthattheanimalsthathavedisappearedfromtheearth,likedinosaurs,canpossiblybebroughtbacktolifethroughcloning.人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。1.Fromtimetotimepeoplesfromtimetotime有时,间或,偶尔,=occasionally,nowandthen.Hecomesherefromtimetotime.

他时常到这儿来。

Thecarmanufacturerschangedthecarmodelsfromtimetotime.

汽车制造商不时地改变车的型号。fromtimetotime有时,间或,偶尔,将下列句子译成英语(1)他有时变得很没有道理。

____________________________________________(2)他们有时吵架。

____________________________HebecomesquiteunreasonablefromTheyquarrelfromtimetotime.timeto

time.将下列句子译成英语Hebecomesquiteunrebringbacktolife使复生Theyusedartificialrespirationtobringtheswimmerbacktolife.

他们用人工呼吸使游泳者苏醒过来。Anywayhewasdead,wecouldnotbringhimbacktolife.

横竖他死了，我们不能使他复生。bringbacktohealth

恢复健康bringbacktolife使复生bringb2....butotherswillsurviveandpassontheabilitytoresistthatdiseasetotheirchildren.

其他的将存活下来并传递给其后代抵抗这种病的能力。2....butotherswillsurviveresist作及物动词主要有三个义项:

抵抗,对抗;

抵挡,防止;

(与cannot,couldnot连用)无法抗拒,无法抵挡。resist作及物动词主要有三个义项:Theyresistedtheattack.他们抵抗那次攻击。Sheresistedbeingcarriedoff.她拒绝被带走。Shecouldnotresistthetemptation.她无法抗拒那项诱惑。Theyresistedtheattack.1.ThepopularityofthefilmJurassicPark,inwhichascientistclonesseveraldifferentkindsofextinctdinosaurs,proveshowinterestedordinarypeopleareinthesubject.

长难句分析1.Thepopularityofthefilm

电影《侏罗纪公园》的欢迎证实了普通人对这一话题是多么感兴趣,在该电影中一位科学家克隆了几种不同的恐龙。

inwhich引导定语从句,how引导宾语从句。电影《侏罗纪公园》的欢迎证实了普通人对这一话2.Itisuselesstocloneananimalifthereisnotenoughdiversityinthegroupforittoovercomeillnesses.该群中如果没有足够的多样性使它克服疾病,克隆动物就没有用。当动词不定式、动名词或从句作主语时,通常把它们放在谓语之后,而用it作句子的形式主语。2.Itisuselesstocloneana3.Diversityinagroupmeanshavinganimalswiththeirgenesarrangedindifferentways.群中的多样性指的是拥有基因排列方式不同的动物。

withtheirgenesarrangedindifferentways作定语,indifferentways以不同的方式。3.DiversityinagroupmeansListeningandSpeakingListeningandSpeaking

Iscloningcruel?ListenandseewhetheryouagreewithXiaoQingorMary.1.Readthesestatementsbeforelistening.Tickthosethatyouhear.

①Cloningwillbringdeadpetstolife.②Therewere627experimentsbeforeDollywassuccessfullyclone.Iscloningcruel?Listenan③Cloningmayproducemedicineorevenorgansofahumanbodytocureseriousillnesses.④Dollywas“middle-aged”whenshewasborn.⑤Soyourgrandmotherwouldbeabletostartherlifealloveragainandlivetoanoldage.③Cloningmayproducemedicine2.Listentothetapeagainandthenworkwithapartnertofillinthechart.Mary’sideasaboutcloningXiaoQing’sideasaboutcloning1crueltoanimals1scientistsaredoingawonderfuljob2makesthemdounnaturalthings

2maybringbackextinctanimals3itisa“deadend”3problemsbecauseitisanewscience2.ListentothetapeagainanMary’sideasaboutcloningXiaoQing’sideasaboutcloning4clonebornatageof“mother”4scientistsneedencouragement5weakensthespecies5itmayprovidemedicineforillnessesMary’sideasaboutcloningXiaoListeningTextISCLONINGCRUEL?XiaoQingandMaryBrownarediscussingwhethercloningiscrueltotheanimals.MB:XiaoQing,doyouthinkcloningiscruel?ListeningTextISCLONINGCRUEL

XQ:Whatdoyoumeanbythat?Thescientistsaredoingawonderfuljobandsoontheymaybeabletobringbackextinctanimalsorevenpeople’sfavouritepetsbacktolife.

MB:Yes,Qing,Iknow.Butdoesn’tthatseemstrangetoyou?Isitworthit?Ittook276experimentsbeforeXQ:WhatdoyoumeanbythaDollywassuccessfullycloned.ThinkofallthoselivecellsandeggsthatdiedinorderforDollytobeborn.Idon’tapproveofthat!

XQ:ButMary,bereasonable.Isn’titalwayslikethatwithanewscience?ThisisthewayyoulearntodoDolly