英語教學設計 Uni Cloning教學設計（Perio Previewing）

Unit2Cloning教學設計（Period1Previewing）【教學目標分析】●教學目標本課時主要是通過學生對學案所給出的內(nèi)容的學習，了解本課文中所出現(xiàn)的詞匯，初步了解課文以及相關的背景知識，為下一堂課對課文的全面理解起到一個鋪墊作用?！窠虒W地位本單元的中心話題是“克隆”?？寺∫鉃闊o性繁殖，克隆技術即是無性繁殖技術。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”這一中心話題設計的。目的在于讓他們了解有關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方案設計】●新課導入建議可以通過讓學生看和討論教材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入新課。要求學生分組討論，了解兩種不同的克?。鹤匀豢寺『腿斯た寺?。為下面的閱讀做好鋪墊。老師要盡量給學生自主學習的時間和空間，通過自學、自做、自悟、自助等方式，讓學生更好地體會和理解文章的內(nèi)容?！窠虒W流程設計導入新課。學生閱讀“美文閱讀”與“誘思導學”。學生就“話題美文導讀”進行討論，統(tǒng)一答案。學生再次閱讀課文(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。讓學生快速閱讀課文，(見課本第11－12頁)并完成“篇章結(jié)構(gòu)”。學生共同討論，并讓學生發(fā)表各自見解，最后統(tǒng)一答案。學生再次仔細閱讀課文，(課本第11－12頁)進行深度理解，并完成“課文縮寫”。老師指導學生討論，共同找出答案。讓學生根據(jù)所給出的表格進行自我評估。學生討論，并讓學生代表發(fā)表他們討論得出的答案。老師予以更正。讓學生完成“知識初探”部分。老師布置作業(yè)，讓學生看課本并完成課本第12頁1、2、3題，預習學案Period2,寫一篇簡單的辯論報告類作文。Unit2Cloning課前自主導學（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年中國科學院動物研究所首席科學家、動物克隆與受精生物學學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