英語教學(xué)設(shè)計 Uni Cloning教學(xué)設(shè)計（Perio Previewing）

Unit2Cloning教學(xué)設(shè)計（Period1Previewing）【教學(xué)目標(biāo)分析】●教學(xué)目標(biāo)本課時主要是通過學(xué)生對學(xué)案所給出的內(nèi)容的學(xué)習(xí)，了解本課文中所出現(xiàn)的詞匯，初步了解課文以及相關(guān)的背景知識，為下一堂課對課文的全面理解起到一個鋪墊作用?！窠虒W(xué)地位本單元的中心話題是“克隆”?？寺∫鉃闊o性繁殖，克隆技術(shù)即是無性繁殖技術(shù)。1997年英國羅斯林研究所試驗成功的克隆羊多莉是首次利用體細(xì)胞克隆成功的，它在生物工程史上揭開了新的一頁。本單元內(nèi)容具體涉及“什么是克隆”、“克隆羊多莉是如何誕生的”、“克隆的利弊”等。語言技能和語言知識都是圍繞“克隆”這一中心話題設(shè)計的。目的在于讓他們了解有關(guān)克隆的知識和科普文章的一些基本特征和寫作方法，自己嘗試寫簡單的辯論報告?！窘虒W(xué)方案設(shè)計】●新課導(dǎo)入建議可以通過讓學(xué)生看和討論教材P10的“熱身”(WarmingUp)的圖片：克隆羊多莉、人類的雙胞胎、草莓的自然無性繁殖以及插枝繁殖的植物等導(dǎo)入新課。要求學(xué)生分組討論，了解兩種不同的克?。鹤匀豢寺『腿斯た寺　橄旅娴拈喿x做好鋪墊。老師要盡量給學(xué)生自主學(xué)習(xí)的時間和空間，通過自學(xué)、自做、自悟、自助等方式，讓學(xué)生更好地體會和理解文章的內(nèi)容?！窠虒W(xué)流程設(shè)計導(dǎo)入新課。學(xué)生閱讀“美文閱讀”與“誘思導(dǎo)學(xué)”。學(xué)生就“話題美文導(dǎo)讀”進(jìn)行討論，統(tǒng)一答案。學(xué)生再次閱讀課文(課本第11－12頁)并完成“語篇理解”。師生共同討論并統(tǒng)一答案。讓學(xué)生快速閱讀課文，(見課本第11－12頁)并完成“篇章結(jié)構(gòu)”。學(xué)生共同討論，并讓學(xué)生發(fā)表各自見解，最后統(tǒng)一答案。學(xué)生再次仔細(xì)閱讀課文，(課本第11－12頁)進(jìn)行深度理解，并完成“課文縮寫”。老師指導(dǎo)學(xué)生討論，共同找出答案。讓學(xué)生根據(jù)所給出的表格進(jìn)行自我評估。學(xué)生討論，并讓學(xué)生代表發(fā)表他們討論得出的答案。老師予以更正。讓學(xué)生完成“知識初探”部分。老師布置作業(yè)，讓學(xué)生看課本并完成課本第12頁1、2、3題，預(yù)習(xí)學(xué)案Period2,寫一篇簡單的辯論報告類作文。Unit2Cloning課前自主導(dǎo)學(xué)（Period1Previewing）【文本感知】Ⅰ篇章結(jié)構(gòu)閱讀P11－12的Reading部分，然后完成下列表格Cloning：Whereisitleadingus?ParagraphMainideaContents1Thedefinition(定義)ofcloningCloningisawayofmakingan1.________anotheranimalorplant.Ithappensbothinplantsandanimals.2Themajor2.________ofcloningFirstly，gardenersuseittoproducecommercial3.________.Secondly，itisvaluableforresearchonnewplantspeciesandformedicalresearchonanimals.3TheproblemsofDollyAtfirstsheseemedtodevelopnormally.Thencame4.________thatshehadbecomeseriouslyill，which5.________cloningscientists.Dollylivedonlysixandahalfyears，6.________thelifeoftheoriginalsheep.Cloningscientistswonderednowtoovercometheproblems.4TheeffectofDollyItsappearanceraisedastormof7.________andhadagreatimpactonmediaandpublicimagination.Italsooccurredtopeoplethattheycancureseriousillnessesandeventoproduce8.________usingcloning.5People'sreactiontocloningGovernmentbecame9.________.Somebeganto10.________researchintohumancloning.Scientistsstillwonderwhethercloningwillhelporharmusandwhereitisleadingus.【答案】1.exactcopyof2.uses3.quantitiesofplants4．thedisturbingnews5.castdown6.halfthelengthof7.objections8.humanbeings9.nervousandmoreconservative10.forbidⅡ語篇理解閱讀P11－12的Reading部分，選擇最佳答案。1．Whatarepeoplecloningnow?A．Theyarecloningbooksandmachines.B．Theyarecloninghumansandanimals.C．Theyarecloningtrees，crops，grass，flowers，etc.，aswellasanimals.2．Itcanbeinferredfromthepassagethataclonedanimal________.A．usuallylivesaslongastheoriginaloneB．usuallyliveslongerthantheoriginaloneC．usuallylivesshorterthantheoriginalone3．ThecloningofDollythesheepsucceededbecause________.A．itiseasiertocloneasheepthanotheranimalsB．thescientistsweredeterminedandworkedhardwithpatienceC．itismoreusefulthanplants4．Fromthepassage，wecansee________.A．Dolly'soriginalsheeplived13yearsB．Dolly'sbabywasalsoaclonedoneC．newspapersdidnotdisclosecloningsheep5．Wecanusetheskillofcloningto________.A．bringaboutglobalpeaceB．createotherfamousscientistsC．curesomespecialdiseases【答案】1－5CCBACⅢ課文縮寫Cloningisawayofmakingan1.________copyofanotheranimalorplant.Cloningplantsis2.________whilecloninganimalsisverycomplicated.Itisadifficulttaskto3.________.Manyattemptstoclonemammalsfailed.Butatlastthedeterminationandpatienceofscientists4.________in1996witha5.________—thecloningofDollythesheep.Dolly'sappearanceraisedstormof6.________andhadagreat7.________onthe8.________andpublicimagination.AltogetherDollylivedsixandahalfyears，halfthelengthoftheoriginalsheep.Atpresentsomecountriesbegantoreformtheirlegalsystemsand9.________researchintohumancloning，butothercountrieslikeChinaandtheUK，continuedto10.________evidenceoftheabundantmedicalaidthatcloningcouldprovide.【答案】1.exact2.straightforward3.undertake4．paidoff5.breakthrough6.objections7.impact8．media9.forbade/forbad10.accumulate【知識初探】Ⅰ詞義搭配1．UndertakeA．topromiseoragreetodosomething2．breakthroughB．a(chǎn)nimportantnewdiscoveryinsomethingyouarestudying3．a(chǎn)ltogetherC．connectedwiththeprinciple ofwhatisrightandwrongbehavior，andwiththedifferencebetweengoodandevil4．objectD．togetsomethingthatyouwant5．obtainE．completely6．moralF．tograduallygetmoreandmoreofsth.overaperiodoftime7．forbidG．toordersb.nottodosth.ororderthatsth.mustnotbedone8．a(chǎn)ccumulateH．tosaythatyoudisagreewith，disapproveoforopposesth.【答案】1.A2.B3.E4.H5.D6.C7.G8.FⅡ短語填空infavorof；payoff；objectto；fromtimetotime；castdown；differfrom；haveanimpacton1．Jackisreallyhavingahardtime－h(huán)ecan'tearnenoughmoneyto________thedebts.2．AttheUNconference，Chinastrongly________punishingtheArabiccountriesbyforce.3．Thepeoplearemuch________bymanyyearsofcivilwar.4．Fashiondesignersarealwayschangingstylesofdress________tomakemoremoneyfromladies.5．Areyou________thegovernment'splantobuildmorerailwaylines?【答案】1.payoff2.objectedto3.castdown4.fromtimetotime5.infavorofⅢ句型背誦1．Cloningplantsisstraightforwardwhile_cloninganimalsisverycomplicated.克隆植物簡單，但克隆動物就很復(fù)雜了。2．Thefactthat_she_seemed_to_develop_normallywasveryencouraging.看來多莉是在正常地成長著，這很令人鼓舞。3．Then_camethedisturbingnewsthatDollyhadbecomeseriouslyill.接著傳來了多莉病重的壞消息。4．Althoughatpresenthumaneggcellsandembryosneededforcloningresearchare_difficult_to_obtain，newspaperswroteofevilleadershopingtoclonethemselvestoattaintheirambitions.盡管目前供克隆研究的人類的卵細(xì)胞和胚胎很難獲得，報紙報道說，有些邪惡頭目希望把自己克隆出來以實現(xiàn)他們的野心?！久牢拈喿x】Pandascanbesavedbycloning?從1998年中國科學(xué)院動物研究所首席科學(xué)家、動物克隆與受精生物學(xué)學(xué)科帶頭人陳大元首次正式提出克隆大熊貓到現(xiàn)在，整整16年過去了，陳老仍然執(zhí)著于此。然而保護(hù)大熊貓，究竟要不要通過克隆的方式呢？Chinahasbeenexploringeverypossiblemeansofsavinggiantpandas，oneoftheworld'smostendangeredspecies，frombecomingextinct，evenifitmeansresortingto(訴諸)cloningthem.ChenDayuan，aseniorscientistwhospecializesincloningattheInstituteofZoologyintheChineseAcademyofSciences，introducedtheideaofperformingcloningtechniquesongiantpandasin1998.Usinginitialfundingof100,000yuan，Chensuccessfullyproducedblastocysts(胚泡)bytransplantingthesomaticnucleusfromsamplepandasintotheeggcellsofrabbits.Themovewasconsideredasoneofthe10biggestachievementsofscienceandtechnologyin1999.Itwonanawardof6millionyuanandfurtherfundingof5millionyuanfortheprojectfromtheMinistryofScienceandTechnology.Atfirst，twoembryoswerecreatedfromasurrogatemother(代母)catwhobecamepregnantafterbeingin-jectedwithablastocyst，buttheexperimentwasabandonedafterthecatdied.Chenandhisteamthenexperimentedwithsurrogacyonblackbears.Afterthreeyearsofeffort，ablackbearbecamepregnantandtheshapeofafetus(胎兒)couldbeseenonanultrasoundscan(超聲波掃描檢查)．However，theresearchwasstoppedin2005becausethefetusdidnotcompletelydevelopbeforetheproject'sdeadline.“Thosewhoareagainstcloninghavemadetheirvoicesheardthroughouttheresearchprojectoncloninggiantpandas.Somepeoplebel