【同课异构】人教版高中英语选修8课件：Unit 2《Section Three Using language》.ppt

unit2cloning usinglanguage thereturnofthedinosaurs reading discussingandwriting pleaseenjoysomepicturesaboutdinosaurs tyrannosaurus霸王 暴龙 stegosaurs剑龙 ceratopsids角龙 brontosaurus雷龙 pterodactyl翼龙 1做某事的可能性2使电影制作人兴奋3使 刻骨铭心4离做 还很远 远远不能做 5用 做实验6正如下表所示7致力于8生下 分娩 thepossibilityofdoingsth excitefilmmakersstrike intoone sheartbealongwayfromdoingexperimentwithasthislistshowsworkongivebirthto 9偶尔 有时10通过克隆使 复活11据我们现在所知12最初的要求13徒劳的14克服疾病15意味着16基因用不同的方式排列 fromtimetotimebring backtolifethroughcloningwithwhatweknownowinitialrequirementinvainovercomeillnessesmeandoingwithgenesarrangedindifferentways 17把抵抗疾病的能力传给下一代18做某事的缺点19使物种延续20过自然地生活21基于22恐龙回归地球的可能性23抵制做某事 passontheabilitytoresistthatdiseasetothenextgenerationthedrawbacktodoingcontinuethespecieslead liveanaturallifebebasedonthechanceofdinosaursreturningtotheearthresistdoing fastreading matchthemainideawitheachparagraph para1explaintheimpossibilityofcloningdinosaurspara2concludethatit sjustadreampara3introducethetopicofthepassage 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 whatisthewriter sattitudetowardscloningthedinosaurs 2 scientistsarestillexperimentingwithcloningmammalsbecausetheythinkitcanmakemoney fillintheblanksortelltrueorfalse 1 thepopularityoffilmssuchas inwhichascientistclonesseveralkindsof dinosaurs proveshowtheidea amixtureof jurassicpark extinct struck fearandexcitement intopeople s hearts thecloningof mammalsisstillanewscience carefulreadingpara 1 choosethebestanswer 1 thefilmjurassicparkispopularbecause a peopleareinterestedinthesubjectofcloningb alltheactorsaredinosaursc itwasdirectedbyascientistwhoclonesdinosaursd itprovesveryinteresting 2 whichofthefollowingistrue a micewereclonedin1981 b dollythesheepwasthefirstclonedanimal c thenameoftheclonedcowis bison d chinawassuccessfulincloningmammals theanimalsthathavedisappearedfromtheearth likedinosaurs canbebroughtbacktolifethroughcloning para2 unfortunately withwhatweknownow thisiseitherimpossibleorunsuitable evidence 2 the isthatyouneedperfectdna 3 all ofcloningananimalwillbe ifthereisnotenough inthegroupto initial efforts invain diversity requirement overcome illnesses fillintheblanksaccordingtothepassage reasons diversity suitablehabitat dna findouttheadvantagesanddisadvantagesofthediversityinagroupofclonedanimals ifthereisanewillnesssomeoftheseanimalsmaydie butotherswillsurviveandpassedontheabilitytoresistthatdiseasetothenextgeneration theywouldallhavethesamearrangementofgenesandsotheymightalldieofthesamedisease merelyadream conclusion para3 1 whyshouldn tyoucloneanextinctanimalifthereisn tenoughdiversityinthegroup questionsandanswers therewillnotbeenoughgeneticvariationinthegrouptobeabletoresistnewillnesses 2 whyisitwrongtocloneanextinctanimalifitwouldhavetoliveinazoo itisnotagoodideatocloneananimalthatwouldhavetoliveinazoobecauseitisnotasuitablehabitattodevelopandincreaseitsnumbers thezooisnotanaturalenvironmentforawildanimal 3 whycan tyouclonethednaofanimalsthathavebeenextinctlongerthan10 000years thednaofanimalsmorethan10 000yearsoldisnotsuitableforcloning foritcan tsurvivesolong 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 thereisn tenoughdiversityinthegroupforittoovercomeillnessesc theillnessisanewoned theirarrangementofgenescannotresistthatnewdisease 5 wecaninferfromthetextthat a scientistsareexperimentingtoclonedinosaursb dinosaurswillneverreturntotheearthc clonedanimalswillonlyliveinthezood thednaofdinosaurscanonlysurvive10000year 推理判断 cloningisusefulbecause itcouldfindacureforillnessesthatarepresentlyincurable itmeansthatendangeredspeciescanbepreserved itcouldhelpfamilieswhocannothavechildrenoftheirown youropinionofcloning itisabadthingbecause itmightproducemonsters itmightbringbacktolifecreaturesthatmightharmus youmightbeclonedwithoutyourknowledge greatauk 1844 aurochs 1627 dodobird 1755 quagga 1883 discussion asampledialogue s1 ithinkthedodobirdshouldbereturnedtotheearth ithasn tbeenextinctverylong soitsdnawillstillbegoodenoughforcloning s2 yes andsailorsinthepastalwaysdescribedthedodoasbeingaveryfriendlyanimal soitwouldmakeagoodpet itwasn ttoolargeeither ican tseeanyotherextinctanimalsbecomingapet canyou s1 no indeed 1knowit sabirdlikethegreataukbutneitherofthemcouldfly soifyoukepteither itwouldn tescapefromapark afamilyoritshomeinthewild youcouldalsofarmadodo unlikealltheothers andproducemanyofthemasexoticpets s2 andwhataboutitslargenutritiouseggs justonewouldfeedalargefamily sothere smorethanonereasonforproducingitincommercialnumbers s1 didyouknowthatitsmeatisverytastytoo perhapsitcouldbefarmedlikeostrichesandprovideagoodsourceofprotein s2 theonlyproblemisthatitneedshotclimatetosurvive butthat seasytoprovidewithallitsotheradvantages idon tthinkanyoftheotheranimalsstandsachanceagainstthedodo s1 sowebothagreethatthebestextinctanimaltobeclonedisthedodobird s2 yes asamplereport 1 let sbringthegreataukbacktolifethegreataukisthemostsuitableanimaltobebroughtbacktolife herearethereasons firstly it sfeathersdon tabsorbwater soit susefulforprotectingclothesfromwater secondly farmerscankeepitaschickentoearnmoney finally itbecameextinctrecently thereforeitsdnaisstillingoodcondition soithinkthegreataukwouldbethebestchoicetobebroughtbacktolife asamplereport 2 let sbringthedodobacktolifethedodoisthemostsuitableanimaltobebroughtbacktolife herearethereasons firstly it sfriendlyandnotharmful sowecankeepitaspetforchildren secondly itslargeeggsandtastymeatcouldbedevelopedforfood finally farmerscansellitsfeathersasdecoration soithinkthedodowouldbethebestchoicetobebroughtbacktolife asamplereport 3 let sbringtheaurochsbacktolifetheaurochsisthemostsuitableanimaltobebroughtbacktolife herearethereasons firstly ithasthickhair andwecanuseitshairtomakeclothes secondly itslonghornscanbeusedfordecoration finally it sverylargeandstrong thereforewecanmakeithelpfarmersploughthefield soithinktheaurochswouldbethebestchoicetobebroughtbacktolife asamplereport 4 let sbringthequaggabacktolifethequaggaisthemostsuitableanimaltobebroughtbacktolife herearethereasons firstly ithasbeautifulskinasazebra sowecanuseitsskinasdecoration secondly themeatisverytasty andwewillhaveanotherdeliciousdish finally itjustbecameextinctin1883 thereforewecaneasilygetitsperfectdna soithinkthequaggawouldbethebestchoicetobebroughtbacktolife languagepoints 1thepopularityofthefilmsuchasjurassicpark inwhichascientistclonesseveraldifferentkindsofextinctdinosaurs proveshowideasstruckamixtureoffearandexcitementintopeople shearts strike intoone sheart 使 刻骨铭心 他的话使我深感恐惧 hiswordsstriketerrorintomyheart strike 过去式 过去分词 1 hefell strikinghisheadontheedgeofthetable 2 theareawasstruckbyanoutbreakofcholera 3 anawfulthoughthasjuststruckme 4 theystruckforbetterworkingconditions 5 theclockhasjuststruckthree 6 strikeamatch exx 译 1 strikewhiletheironishot 2 我突然想到我们如何能改善局面了 struck struck 碰 撞 打 灾难 疾病等 侵袭 爆发 想起 想到 罢工 报时 敲响 划 擦火柴 趁热打铁 itstruckmehowwecouldimprovethesituation 2 wearealongwayfrombeingabletocloneextinctanimals wearefarfrombeingabletocloneextinctanimals wayn 两点之间的 距离 时间段想要完全适应 她还有很长的路程要走 shestillhasalongwaytogobeforeshefullyfitsin awaytodo ofdoingsth 做 的方法 手段getintothewayofdoingsth 养成 的习惯getinthewayofsb doingsth 挡 的路 防碍makewayforsb 给 让路 位置 3 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 shehastoworkatweekendsfromtimetotime bring backtolife使复生comebacktolife bringsb sth back 把 送回 归还 pleasebringbackalllibrarybooksbytheendoftheweek bringsthback 使回忆起 使想起 恢复 重新使用 thephotographsbroughtbackmanypleasantmemories mostpeopleareagainstbringingbackthedeathpenalty bringsb sth bringsth back for sb 给 带回 ibroughtat shirtbackformark 4 vain adj 徒劳的 枉然的 无结果的 自负的 自恃过高的 vainattempt hope effortetc徒劳的尝试 希望 努力 sheclosedhereyestightlyinavainattempttoholdbackthetears she stoovaintowearglasses invain 枉费心机 徒劳无益 白费力气 alloureffortswereinvain theytriedinvaintopersuadehertogo 5resistvt 抵抗 对抗 resiststh 抵制 阻挡某事resistdoingsth 反对 抵制做某事can t couldn tresistdoingsth can t couldn thelpdoingsth忍不住做某事 thebankstronglyresistedcuttinginterestrates shewaschargedwithresistingarrest hecouldn tresistshowingoffhisnewcar 知识链接 resistance n 抵制 抵抗resistant adj 抵制的 抵抗的beresistantto对 有抵抗力 6 就我们现在所知 你不可能克隆那些已经绝种了一万年以上的动物 weknownow youcannotcloneanimalsthathavebeenextinctlongerthan10 000years basedonwhat asfaras basedon upon以 为基础 依据此处为悬垂分词做状语 其结构为 basesth on uponsth isbasedon upon 7 sothechancesofdinosaurseverreturningtotheearthismerelyadream adv 只有 仅 不过iaskeditmerelyoutofcuriosity it snotmerelyajob butawayoflife hegoestheresimplybecausehelikesto itwasjustanordinaryday 只是 仅仅是 hewasfinedforbreakingtrafficregulations theweath