学案Unit--The-return-of-the-dinosaurs

1/3学案Unit2Thereturnofthedinosaurs?Step1:Fastreading.MarchthemainideawitheachparagraphPara.1Wearealongwayfrombeingabletocloneextinctanimals.Para.2Thechanceofdinosaurs’returningtotheearthismerelyadream.Para.3Itisimpossibleandunsuitabletocloneextinctanimalsforsomereasons.Step2:Carefulreading.Task1:(para.1)1.ThefilmJurassicParkispopularbecause_____.A.peopleareinterestedinthesubjectofcloningB.alltheactorsaredinosaursC.itwasdirectedbyascientistwhoclonesdinosaursD.itisarealstory2.Whichofthefollowingistrue?____A.Cowgavebirthtoabisonin2000.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningmammals.Task2:(para.2-3)1.Whatisthewriter’sattitudetowardscloningthedinosaurs?A.Supportive.B.Neutral.C.Negative.D.Subjective.2.Whyisitimpossibleorunsuitabletocloneextinctanimals?Step3:ConsolidationTheauthorexpresseshisopinionthatitisandto__________extinctanimalslikebecauseofthelackof_____________,______________and_______________.Step4:Vocabulary(synonyms)1.Itproveshowtheideastruckamixtureoffearandexcitementintopeople’sheart.A.haveonthebrainB.confusedC.provedpeoplecrazyD.scared2.Fromtimetotimepeoplesuggestthatextinctanimal…A.LongtimeagoB.SometimesC.AllthetimeD.Eachtime3.Peoplesuggestthatdinosaurscanpossiblybebroughtbacktolife.A.makealifeB.earnone’slivingC.liveonD.makethedeadalive4.TheinitialrequirementisthatyouneedperfectDNA.A.mostthankfulB.finalC.mostdifficultD.original5.Alleffortsofcloningananimalwillbeinvainifthereisnotenoughdiversity.2/3A.carelessB.uselessC.helplessD.homeless6.Otherswillpassontheabilitytoresistthatdisease.A.fightagainstB.infectC.hireD.indicate7.Thechanceofdinosaurseverreturningtotheearthismerelyadream.A.actuallyB.onlyC.nearlyD.finallyStep5:DiscussionWhichtoclone?Why?NameInformationAuroch(1627)Largewildcattle;longhornsandhair;hairgoodformakingintoclothes;hornscanbeusedfordecoration;needgrasslandsDodobird(1755)Unabletofly;friendlyandnotharmful;largeeggsandtastymeatthatcouldbedevelopedforfood;needshotclimateGreatAuk(1844)Verylargebirdthatcannotfly;livesbyandinthesea;feathersdonotabsorbwater;usefulforprotectingclothesfromwaterQuagga(1883)Skinlookslikeazebra;canbeusedfordecoration;meatverytasty;needswarmclimateStep6:Writing(usualstructure)Raiseanopinion:Statethereasons…Drawaconclusion3/3