Unit2《Cloning》using language 新人教版选修8

Extensivereading,Thereturnofthedinosaurs?,教师寄语：希望大家：每天都要超越自我！每天都要和惰性做斗争！每天都要成长！每天都要努力！每天都充满成就感！每天都在变得更强大、更自信、更完美！这就是我的每一天！Imgettingbettereverydayineveryway.这就是人生的真正意义！,Pleaseenjoysomepicturesaboutdinosaurs.,霸王龙tyrannosaurus,剑龙stegosaurs,角龙ceratopsids,雷龙brontosaurus,翼龙pterodactyl,【教学过程】Keywords:1.灭绝的；绝种的extinct;2.流行（n.）popularity;3.哺乳动物mammal;4.不幸地unfortunately;5.最初的；开始的initial;6.多样性diversity;7.信息（不可数n.）information;8.抵制；抗拒resist;9.缺点；不利条件drawback;10.（家族中的）一代generation;11.栖息地habitat;12仅；只；不过merely;,I、自主学习:通读全文，找出以下词组或句式：1.使刻骨铭心strikesthintoonesheart;2.远远不能够bealongwayfrombeingableto.;3.一门新的科学anewscience4.生出givebirthto5.不时；偶尔fromtimetotime=nowandthen;6.诸如灭绝动物extinctanimalslike;7.使复活；使充满活力；bringbacktolife;8.徒劳地invain=tonoavail;9.克服疾病overcomeillnesses;10.优势是Theadvantageisthat;,11.传给；传下去passon;12.缺点是Thedrawbacktoisthat;13.过着自然的生活liveanaturallife;14.依据；按照basedon/accordingto;15可能性、机会thepossibility/chanceof.;,Thewriterofthetext_A.isexcitedbythepossibilityofcloningfierceandextinctanimalsB.believesthatextinctanimalscanbebroughtbacktolifebycloningC.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningtotheearth,主旨大意,2.ThefilmJurassicParkispopularbecause_.A.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itprovesveryinteresting,细枝末节,A,3.Whichofthefollowingistrue?_Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningmammals.,4.ThereasonswhyagroupofclonedanimalsalldieofthesameillnessdoNOTinclude_.A.theyhavethesamearrangementofgenesB.thereisntenoughdiversityinthegroupforittoovercomeillnessesC.theillnessisanewoneD.theirarrangementofgenescannotresistthatnewdisease,5.Wecaninferfromthetextthat_A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000year,推理判断,Trueorfalse.,Scientistsarestillexperimentingwithcloningmammalsbecausetheythinkitcanmakemoney.Theanimalsthathavedisappearedfromtheearth,likedinosaurs,canbebroughtbacktolifethroughcloning.Ifwecancloneanyextinctanimals,weshouldletthemliveinazoo.,F,F,F,ThepopularityofthefilmJurassicPark,inwhichascientistclonesseveraldifferentkindsofextinctdinosaurs,proveshowinterestedordinarypeopleareinthesubject.,长句难句,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。,2.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。,fromtimetotime有时,间或,偶尔,=occasionally,nowandthen。,3.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。,4.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。,5.butotherswillsurviveandpassontheabilitytoresistthatdiseasetotheirchildren.其他的将存活下来并传递给其后代抵抗这种病的能力。,resist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。,baseon/upon以为基础,依据其结构为:basesth.on/uponsth