學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精M5Unit3ScienceversusnaturePeriod5TaskWritingaformalletter一．【設(shè)計(jì)思想】Task目標(biāo)是寫(xiě)一封有關(guān)轉(zhuǎn)基因食品的正式書(shū)信.為學(xué)生創(chuàng)設(shè)一個(gè)簡(jiǎn)單的情景，然后通過(guò)聽(tīng)力、閱讀小文章增加學(xué)生對(duì)轉(zhuǎn)基因食品的了解，最后設(shè)計(jì)一個(gè)采訪活動(dòng)，讓學(xué)生以小組為單位進(jìn)行。在課堂的最后做一個(gè)小結(jié)。讓學(xué)生了解正式信件的內(nèi)容和寫(xiě)作步驟，逐級(jí)加深了解，然后再把所了解到知識(shí)在實(shí)際中加以運(yùn)用，按要求完成寫(xiě)作。二．【教學(xué)目標(biāo)】1。檢查和訂正信息2。了解有關(guān)克隆食品知識(shí)3。掌握信的格式4.寫(xiě)一封與轉(zhuǎn)基因食品有關(guān)的正式信件三．【教學(xué)重難點(diǎn)】1。進(jìn)行一個(gè)關(guān)于轉(zhuǎn)基因食品的討論2。設(shè)計(jì)一個(gè)關(guān)于轉(zhuǎn)基因食品的采訪四【教學(xué)環(huán)節(jié)】【課堂教與學(xué)】【Activitiesinclass】Activity1Skillsbuilding1changingorcorrectingatext1。Throughagamecalled“Chinesewhisper”,letSslearnwhenweareaskedtopassinformation,weneedto1。correctgrammaticalerrorsandspellingmistakes2.makechangestotheinformationinthetext3.changethestyleorthetone2.listenwiththeguideabovestep1confirminginformation1.DiscussaboutwhatGMfoodisbeforelisteningWhatdoesGMfoodstandfor？GeneticallyModifiedfood_skillsbuilding2conductingadiscussion1。Howtoaskforpeople’sopinionsandintroducenewideastothediscussione。g.Whatdoyouthink?/Don'tyouthinkso？/Doyouagree?/Isthatyouropiniontoo?e.g.Anotherargumentisthat…/Don’tforget…/Ontheotherhand，…/Wecanalso…/Butwhatabout…?Activity2step2collectingmoreinformationSincewehavelearnthowtoaskforopinionsofothersandintroducenewideas,let’spractisethedifferentexpressionsbyinterviewingascientistaboutGMfood。1。ListthethingsaboutGMfood.2.Groupwork:Youwillbedividedintogroupsoffourandstudytheinterviewformonpage54together.Tellwhatquestionsyoumayaskabouteachheadingandaddasixthheading.Writedownyourquestionsandapossibleheadingintheform.Addmorequestionstotheheadingsyousuggest.Sampleanswers：1.SafetyofGMfoodDoyouthinkitissafeforpeopletohaveGMfood?2。PossiblesideeffectsArethereanysideeffectsifpeoplehaveGMfood?3。TastecomparedwithnormalfoodDoesittastethesameas/nicerthannaturalfood？4.CostDoyouagreethatGMfoodismoreexpensivethannaturalfood？5.NeedforgovernmentcontrolDoyouthinkthegovernmentshoulddosomethingtoensureitssafety?Ifso,whatshouldbedone？6。PopularityforbuyersWillyouorwillyounotbuytheGMfood?Skillsbuilding3：writingaformalletterOftenyouwonderhowtowriteaformalletter.Youwilllearnthataformalletteroftenincludesinformationsuchasanaddress，adate,thereceiver’sname，jobtitleandaddress,aformalgreeting,aformalendingandthesignature.Youwillalsolearnsomeusefulphrasestostartandendaformalletter。1。Readtheguidelinesonpage56.Makesureyouknowtheformatofaformalletterandunderstandtheusefulphrasestostartandendaletter。2.Readtheletteronpage56andlabelthepartsoftheletter.Answers:youraddress—101HighStreetthedate—1May,2006Mr。FrankBrown-receiver’snamePublicRelationsManager—jobtitleSafewayLaboratories—receiver'saddress305QueensDriveLiverpoolDearMrBrown,—formalgreetingIamwritingtocomplain…practiceimmediately.Yourssincerely,—formalendingJimDavidson-signatureJimDavidson—yourname3.Afteryoulabeledthepartsoftheletter,readtheletteragainandunderlinethephrasesusedtostartandendtheletter。Iamwritingtomake…Iurgeyoutoseek…【課堂鞏固】ConsolidationWritingaletteraboutGMfoodInthispart,you’rerequiredtowriteaformalletteraboutGMfoodtoyourlocalsupermarketbasedontheinformationgatheredinSteps1and2.Youwillbedividedintosmallgroupsandeachofyoushouldcontributetothewritingoftheletter。ReadthetwoarticlesonGMfoodinPartAonpage57。Underlinealltheprosandconsandtrytounderstandthemeaningofthearticles.Writeaformalletter。ThelettershouldincludefourpointsinPartB。Thenreadyourletterstotheclass.【知識(shí)小結(jié)】1.掌握關(guān)于轉(zhuǎn)基因食品的相關(guān)知識(shí)。2。學(xué)會(huì)如何寫(xiě)一封正式信件?！咎嵘c拓展】PleasewriteaformallettertoMr。ShenJian，HeadofEducationDepartmentofJiangsuProvince,tellinghimyourstudents’opinionsonchangingEnglishscoresintogradesinGaokao.Areyoufororagainst？Whatareyourreasons?Noticetheformatandstructure!Bepoliteandpersuasive！【課后預(yù)習(xí)】預(yù)習(xí)課本P58-59的內(nèi)容，了解相關(guān)背景知識(shí)?！景鍟?shū)設(shè)計(jì)】【家庭作業(yè)】1。復(fù)習(xí)本節(jié)課所學(xué)內(nèi)容2.教師根據(jù)教輔資料布置Task有關(guān)知識(shí)點(diǎn)練習(xí)作業(yè)（參見(jiàn)資源包知識(shí)點(diǎn)部分學(xué)案)