英語(yǔ)微課教學(xué)設(shè)計(jì)

英語(yǔ)微課教學(xué)設(shè)計(jì)一.教材分析1.教學(xué)內(nèi)容本單元的中心話題是“克隆”，學(xué)生通過討論和閱讀有關(guān)克隆的內(nèi)容，了解克隆的含義、克隆的技術(shù)發(fā)展、克隆對(duì)人類帶來(lái)的好處以及人類對(duì)克隆這一問題的爭(zhēng)議。閱讀部分介紹了植物與動(dòng)物克隆的區(qū)別、多莉羊的誕生與死亡以及由此引發(fā)的爭(zhēng)論。幫助學(xué)生進(jìn)一步認(rèn)識(shí)克隆的意義在于解決醫(yī)學(xué)上的難題，為人類服務(wù)。1.教材處理本科結(jié)合教材的實(shí)際對(duì)教材內(nèi)容、編排順序等進(jìn)行了調(diào)整、刪除和補(bǔ)充，把閱讀前、閱讀中和閱讀后三部分有機(jī)整和起來(lái)。（1）導(dǎo)入新穎，激發(fā)興趣?！白x前階段”通過圖片導(dǎo)入的形式，激活學(xué)生大腦中的圖式。同時(shí)，結(jié)合標(biāo)題預(yù)測(cè)，使學(xué)生對(duì)即將閱讀的內(nèi)容有一定的預(yù)測(cè)，激發(fā)閱讀興趣。（2）循序漸進(jìn)、創(chuàng)意安排。“讀中階段”引導(dǎo)學(xué)生進(jìn)行語(yǔ)篇的整體感知，了解課文的概況；培養(yǎng)學(xué)生同義轉(zhuǎn)換及歸納概括的能力。（3）適度拓展、開發(fā)思維。“讀后階段”拓展學(xué)生的發(fā)散性思維，在訓(xùn)練學(xué)生閱讀技能的基礎(chǔ)上了解克隆這門生物技術(shù)以及有關(guān)的爭(zhēng)議。二.teachinggoals（教學(xué)目標(biāo)）targetlanguage（目標(biāo)語(yǔ)言）importantwordsandexpressionsclone,commercial,producer,undertake,arbitrary,object,forbid,accumulate,castdown,objectto,themedia,infavourofimportantsentencesbutatlastthedeterminationandpatienceofthescientistspaidoffin1996withabreakthroughthecloningofdollythesheep.altogetherdollylivedsixandahalfyears,halfthelengthofthelifeoftheoriginalsheep.thefactthatsheseemedtodevelopnormallywasveryencouraging.thencamethedisturbingnewsthatdollyhadbecomeseriouslyill.abilitygoals（能力目標(biāo)）enablethestudentstodescribecloning:whatistheadvantagesofcloning?whatistheproblemsordangersofcloning?whatisyouropinionofcloning?learningabilitygoals（學(xué)能目標(biāo)）helpthestudentslearnhowtodescribecloning.三.teachingimportantpoints（教學(xué)重點(diǎn)）howtodescribecloning.四.teachingdifficult（教學(xué)難點(diǎn)）helpthestudentsanalyzethewritingtechniquesofthearticle.五.teachingmethods（教學(xué)方法）skimming,task-basedmethodanddebatemethod.六.teachingaids（教具準(zhǔn)備）arecorder,aprojectorandsomeslides.teachingprocedures&waysstepilead-in［設(shè)計(jì)意圖］導(dǎo)入部分由兩個(gè)步驟組成：.首先讓學(xué)生觀看有關(guān)克隆動(dòng)物和植物的圖片。通過圖片，學(xué)生們立刻領(lǐng)悟了本課的主題，并帶著興趣開始觀看。.學(xué)生在體驗(yàn)中產(chǎn)生探究的興趣后，為了啟發(fā)學(xué)生思考，設(shè)計(jì)了四個(gè)問題，以激發(fā)學(xué)生的思維。teacher:inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.thinkabouthowtheydiffer.student:ithinkthetwinsandastrawberryplantarenaturalclones;thedollysheepandgrowingnewplantsareman-made.afterseveralminutes,teacherasksomequestionsandletstudentsanswerthesequestions.teacher:1.dollythesheep.it’sthemostfamoussheepintheworld.doyouknowhowdollyisdifferentfromothersheep?student:shewasclonedwhiletheotherswerebornnaturally.itisthecopyofanothersheep.teacher:2.whatcanyouseeinthepicture?student:icanseeastrawberryplantproducingrunnersinanaturalformofcloning.teacher:3.whocutthestemofftheplant?student:agardener.andthegardenerisgoingtoputitintoapottoproduceanotherplant.heisactuallymakingacopyoftheplant.teacher:4.whatdoyouknowabouttwins?student:therearetwinsofthesamesexandthoseofdifferentsexes.thetwinshereareidenticalinsexandappearanceandarego0dexamples0fnaturalclones.theycarrythesamegeneticinformation.thefertilizedegghassplitintotwowhileinsidethemother,andsoproducedtwoidenticalhumanbabies.stepiipre-reading［設(shè)計(jì)意圖］通過閱讀文章標(biāo)題，引導(dǎo)學(xué)生對(duì)課文內(nèi)容進(jìn)行預(yù)測(cè)，調(diào)動(dòng)學(xué)生已有的背景知識(shí)，使其產(chǎn)生閱讀的興趣，快速進(jìn)入閱讀狀態(tài)。然后讓學(xué)生通過快速閱讀來(lái)驗(yàn)證自己的預(yù)測(cè)，使自身處于一種主動(dòng)認(rèn)知的狀態(tài)。beforeclass,askthestudentstosearchforsomeinformationaboutthistopic.nowshowmyquestionsonthescreen,andthenletthemdiscusswitheachother.questionsaboutcloning:l.whatisaclone?howisacloneproduced?whatbenefitscanhumansgainfromcloning?whatproblemsmayarisewhenhumansarecloned?suggestanswers:acloneisananimalorplantproducednaturallyorartificiallyfromthecellsofanotheranimalorplantandisexactlythesameasit.thecloningofplantsissimpleandrelativityeasy.itcanbedonebytakingcuttings(man-madecloning)orlettingtheplantproduceitsownrunners(naturalcloning).thecloningofanimalsismorecomplicated.itwasnotachieveduntil1996andisfullyexplainedinthefirstreading.1)medicalcloningcanhelpcureseriousillnessesthatruinone,squalityoflife(suchasparkinson,sdisease帕金森癥oralzheimer,sdisease老年癡呆癥).2)itcanhelpinfertilepeoplehavebabies.4.1)peoplemaywanttoclonethemselvessotheycanliveforever.peoplemaywanttoclonedeadchildren.peoplemaywanttoclonetheirfavoritepets.step適while-readingteacher:nowlet’slistentothetape.theniwillgiveyou20minutestoreadthispassageagain.whilereading,youshouldfinishthefollowingthreetasks.task1summarizethemainideaofeachparagraph.［設(shè)計(jì)意圖］學(xué)生通過略讀本文，快速找出每段的主題句，從整體上把握文章內(nèi)容，不但了解此類型文章的篇章結(jié)構(gòu)，學(xué)習(xí)此類型文章的寫作，而且便于下一步查讀。para1.cloningisawayofmakinganexactcopyofanotheranimalandplant.para2.cloninghastwomajoruses.para3.thebirthanddeathofdolly.para4.theeffectofdolly.para5.itisforbiddentoclonehumanbeings.task2readthetextcarefullyandfillintheblanks.［設(shè)計(jì)意圖］學(xué)生個(gè)人先通過查讀，快速找到特定信息，然后小組組員之間交流各自的答案，有疑義的地方，經(jīng)過討論，最終確定答案。這不僅讓學(xué)生了解文章的具體內(nèi)容，而且培養(yǎng)學(xué)生閱讀的能力和互幫互助的團(tuán)隊(duì)合作精神。definition?cloningisawayofmakinganexactcopyofanotheranimalandplant.majorusesofcloninggardenersuseittoproducecommercialquantitiesofplants.itisvaluableforresearchonnewplantspeciesandformedicalresearchonanimals.aboutdollythesheep?encouragingnews:dollyseemedtodevelopnormally.?disturbingnews:dollylivedonlysixandahalfyears,halfthelengthofthelifeoftheoriginalsheep,becauseofseriousillnesseswhichweremoreappropriatetoamucholderanimal..differentopinionsoncloning?evilleadershopedtoclonethemselvestoattaintheirambitions.?religiousleadersraised_moraLquestions.?somegovemmentslorbaderesearchintohumancloningbutothercountrieslikechinaandtheuk,continuedtoaccumulateoftheabundantevidencemedicalaidthatcloningcouldprovide.task3choosethebestanswer.［設(shè)計(jì)意圖］在閱讀的過程中，讓學(xué)生結(jié)合文章對(duì)這些問題進(jìn)行思考。一方面，可以培養(yǎng)學(xué)生的綜合閱讀能力，另一方面，加強(qiáng)學(xué)生對(duì)文章的進(jìn)一步理解。.themainideaofthetextisanimalcloningisveryvaluableandcanbenefittheworld.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenanimalcloningiswelldevelopedbecausedollythesheepwasborn.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture..isusedintheprocedureforcloningdollythesheep.thenucleusofsheepathesomaticcellofsheepathenucleusofsheepbtheembryoofsheepc.thecloningofdollythesheepsucceededbecause .a.itseasiertocloneasheepthanotheranimalsb.thescientistsweredeterminedandworkedhardwithpatiencethescientistswererewardedandgotlotsofmoneymanyotherattemptstoclonemammalsfailed.thelambisthecloneofthecellfromsheepbecause .a.itprovidestheeggcellb.itgivesbirthtothelambc.itprovidesthenucleusd.itisafemalesheep.dollythesheep .lookedexactlylikethesheepthatprovidestheeggwastheexactcopyofthesheepthatprovidesthenucleuslookedlikethesheepthatgavebirthtoithadthecharacteristicsofallthreesheep.itcanbeinferredfromthepassagethataclonedanimal .usuallylivesaslongastheoriginaloneusuallyliveslongerthantheoriginaloneusuallydiesearlierthantheoriginaloneisusuallyashealthyastheoriginalone.whichofthefollowingiswrong?clonedpeoplewouldliveforever.clonedpeoplemaybekilledatwillformedicalaid.awomanwouldhavedifficultyrecognizingherrealhusband.menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.thesheepthatdonatedthesomaticcellmostprobablylivedyears.a.3b.6c.12d.13.whichofthefollowingisnotanadvantageofcloning?hesecondparagraph,theword“straightforward”means.a.uncomplicatedb.honestc.frankd.difficultstepivpost-reading［設(shè)計(jì)意圖］學(xué)生已經(jīng)通過略讀、查讀和細(xì)讀，抓住了文章脈絡(luò)，理解了文章內(nèi)容。在此基礎(chǔ)上，要求更深一步理解文章，因此設(shè)計(jì)了幾道習(xí)題，進(jìn)一步培養(yǎng)和考察學(xué)生的閱讀理解能力。exercise1thefollowingstatementsareaboutcloning.readthemanddecideiftheyaretrueorfalse.writetheletter“t”ifthestatementistrue.write"f”ifitisfalse..cloningmeansmakingacopyofananimaloraplant.(f).gardenerscanmakealotofmoneybycloningplants.(t).cloninganimalsisascomplicatedascloningplants.(f).dollythesheepwasthefirstsuccessfulcloneofamammal.(t).naturalcloneshappeninanimalsaswellasinplants.(t)exercise2readthepassageagainandanswerthesequestions..whatarethetwomajorusesofcloning?.whyisiteasiertomakecommercialplantclonesthananimalclones?.whatwasthefirstclonefromanadultanimal?atwhatagedidthisclonedie?.whyiscloningcontroversialinsomecountries?stepvlanguagepoints［設(shè)計(jì)意圖］使學(xué)生理解和掌握一些重點(diǎn)詞匯的用法，進(jìn)一步培養(yǎng)使用英語(yǔ)語(yǔ)言的能力，并加深對(duì)文章的理解。identicaladj.①(常與with連用)完全相同的eg.thesetwodesignsarealmostidentical.myopinionisidenticalwithhis.②還有“同一的，同樣的”的意