选修8unit2-the-return-of-the-dinosaurs教案资料

选修8unit2-the-return-of-the-dinosaursWritingThecloningofhumanbeingsFromtimetotimepeoplesuggestthatcanpossiblybebroughtbacktolifethroughcloning.Unfortunately,withwhatweknownow,thisiseitherimpossibleorunsuitable.Herearethereasons：Firstly,

Secondly,Finally,SoIthink,basedonwhatweknownow,youcannot

.Itismerelyadream.

deadpersonhumaneggcellsandembryosneededforcloningresearcharedifficulttoobtain.someevilpeoplemayhopetoclonethemselvestoattaintheirambitions.itmaycausemoralquestions.clonehumanbeingsThereturnofthedinosaurs?Pleaseenjoysomepicturesaboutdinosaurs.霸王龙tyrannosaurus剑龙stegosaurs三角龙triceratops雷龙brontosaurus翼龙pterodactylLookatthefollowingpicturesandthinkwhichfilmtheyarefrom?Doyouthinkitpossibleforpeopletocloneadinosaur?Why?

Matchthemainideawitheachparagraph.Para1explaintheimpossibilityofcloning dinosaursPara2concludethatit’sjustadreamPara3introducethetopicofthepassageFastReadingWhatisthewriter’sattitudetowardscloningthedinosaurs?

A.Supportive.B.Neutral(中立的).C.Negative(否定的).D.Subjective(主观的).objective客观的,positive肯定的impartial公平的arbitrary武断的optimistic乐观的pessimistic悲观的critical持批评态度的cautious谨慎的indifferent冷漠的…2.Scientistsarestillexperimentingwithcloningmammalsbecausetheythinkitcanmakemoney.FillintheblanksortellTrueorFalse1.Thepopularityoffilmssuchas_____________,

inwhichascientistclonesseveralkindsof__________dinosaurs,proveshowtheidea______amixtureof____________________________________________.JurassicParkextinctstruckfearandexcitementintopeople’shearts.thecloningofmammalsisstillanewscience.CarefulReadingpara.1Whichofthefollowingistrue?____Micewereclonedin1981.B.Dollythesheepwasthefirstclonedanimal.C.Thenameoftheclonedcowis“Bison”D.Chinawassuccessfulincloningtwincalves.Theanimalsthathavedisappearedfromtheearth,likedinosaurs,canbebroughtbacktolifethroughcloning.Para2Unfortunately,withwhatweknownow,thisiseitherimpossibleorunsuitable.Evidence:2.The_________________isthatyouneedperfectDNA.3.All_____ofcloningananimalwillbe_______ifthereisnotenough_______inthegroupto________________.initialeffortsinvaindiversityrequirementovercomeillnessesFillintheblanksaccordingtothepassage._______foritsimpossibilityPerfect

isneeded.Thereisnotenough________inthegroup.A(n)______________wouldbeneededfortheclonedextinctanimals.ReasonsdiversitysuitablehabitatDNA__________Thechanceofdinosaursreturningtotheearthis______________.merelyadreamConclusionPara3GreatAuk(1844)Aurochs(1627)Dodobird(1755)Quagga(1883)DiscussionPKWritingLet’sbringthebacktolifeisthemostsuitableanimaltobebroughtbacktolife.Herearethereasons：Firstly,Secondly,Finall