Unit2《Cloning》using language 新人教版选修8

Extensivereading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！I'mgettingbettereverydayineveryway.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strikesthintoone’sheart;2.远远不能够…bealongwayfrombeingableto..;3.一门新的科学anewscience4.生出…givebirthto…5.不时；偶尔fromtimetotime=nowandthen;6.诸如…灭绝动物extinctanimalslike…;7.使复活；使充满活力；bring…backtolife;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…Thedrawbackto…isthat…;13.过着自然的生活liveanaturallife;14.依据…；按照…basedon/accordingto;15…可能性、机会thepossibility/chanceof….;1.Thewriterofthetext_____A.isexcitedbythepossibilityofcloningfierceandextinctanimalsB.believesthatextinctanimalscanbebroughtbacktolifebycloningC.thinksitimpossibleorunsuitabletocloneextinctanimalslikedinosaursD.dreamsofdinosaursreturningtotheearth主旨大意2.ThefilmJurassicParkispopularbecause_____.A.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itprovesveryinteresting细枝末节A3.Whichofthefollowingistrue?____A.Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningmammals.4.ThereasonswhyagroupofclonedanimalsalldieofthesameillnessdoNOTinclude____.A.theyhavethesamearrangementofgenesB.thereisn’tenoughdiversityinthegroupforittoovercomeillnessesC.theillnessisanewoneD.theirarrangementofgenescannotresistthatnewdisease5.Wecaninferfromthetextthat____A.scientistsareexperimentingtoclonedinosaursB.dinosaurswillneverreturntotheearthC.clonedanimalswillonlyliveinthezooD.theDNAofdinosaurscanonlysurvive10000year推理判断Trueorfalse.1.Scientistsarestillexperimentingwithcloningmammalsbecausetheythinkitcanmakemoney.2.Theanimalsthathavedisappearedfromtheearth,likedinosaurs,canbebroughtbacktolifethroughcloning.3.Ifwecancloneanyextinctanimals,weshouldletthemliveinazoo.FFF1.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.isbasedon/upon6.Basedonwhatweknownow,youcannotcloneanimalsthathavebeenextinctlongerthan10000years.据我们现在所知,绝种一万年以上的动物不能克隆。FinishEx.2,Page16;Ex.3-4,Page17.Homework