單元：Unit3Amazingpeople板塊：GrammarandusageThoughtsonthedesign:本節(jié)課是語法教學(xué)課。以觀察——發(fā)現(xiàn)——討論——?dú)w納——運(yùn)用為主要教學(xué)模式，充分利用本單元語言素材，通過多種圖示和語法規(guī)則的呈現(xiàn)，讓學(xué)生比較全面系統(tǒng)地掌握過去完成時(shí)（Pastperfecttense）的用法、一般過去時(shí)（Simplepasttense）與過去完成時(shí)的用法區(qū)別及現(xiàn)在完成時(shí)（Presentperfecttense）與過去完成時(shí)的用法區(qū)別。語法規(guī)則的歸納與講解所選用的語言材料和所涉及的練習(xí)與本單元話題（Amazingpeople）相聯(lián)系。力求讓學(xué)生在語篇中靈活運(yùn)用所掌握的語法規(guī)則，避免學(xué)生死摳語法，生搬硬套。Teachingaims:Afterlearningthislesson,thestudentswillbeabletounderstandsentencesinwhichthepastperfecttenseisused.Theyarealsoexpectedtodistinguishthepastperfecttensefromthesimplepastandthepastperfecttensefromthepresentperfecttense.Atthesametime,theywillreadsomepassagesinwhichthesimplepasttense,thepastperfecttenseorthepresentperfecttenseisused.Teachingprocedures:Step1Leadin(PPT4-5)What’sthetopicofUnit3?(Amazingpeople)Howmanyamazingpeoplehavewereadaboutinthisunit?Whoarethey?(MotherTeresa,BillGates,Beethoven,ZhangHeng,HowardCarter.)CanyoutellmesomethingaboutHowardCarter?(HowardCaterisoneofthemostfamousexplorerstheworldhaseverknown.Hewasbraveandadventurous.…Upontheirenteringthetomb,Carter’sluckypetbird,whichhehadleftinCairo,wasswallowedbyasnake.)Whatverbtensesareusedinthesentence?(thesimplepasttenseandthepastperfecttense)[Explanation]教師充分利用教材中的語言素材，既引導(dǎo)學(xué)生溫習(xí)已學(xué)的內(nèi)容，又激起學(xué)生對已學(xué)內(nèi)容中出現(xiàn)的語法現(xiàn)象（thepastperfect）的關(guān)注。Step2Presentation(PPT6-7)Howcanweformthepastperfect?(Byusing“had＋theverb-edform”)43:Rereadthepassage“Thecurseofthemummy”andunderlinethesentencesinwhichthepastperfecttenseisused.Bythe1920s,hehadbecomeanexplorer,searchingforthetombsoftheEgyptiankings.HehadreceivedmoneyfromLordCarnarvon,aBritishmanwhowasveryinterestedinEgypt.Itwasthemostimportanttombthathadeverbeenfound.Thetombcontainedmoreriches,goldandjewelsthananyofushadeverseenbefore.Upontheirenteringthetomb,Carter’sluckypetbird,whichhehadleftinCairo,wasswallowedbyasnake.AfewmonthsafterCarterhadopenedthetomb,LordCarnarvon,whowasalsopresentwhenthetombwasopened,fellillwithafeveranddiedinEgypt.[Explanation]通過進(jìn)一步復(fù)讀課文，讓學(xué)生發(fā)現(xiàn)過去完成時(shí)在語篇中的運(yùn)用，以加強(qiáng)對過去完成時(shí)的感性認(rèn)識。Step3TheusageofthepastperfectUpontheirenteringthetomb,Carter’sluckypetbird,whichhehadleftinCairo,wasswallowedbyasnake.PresentPresentPastCarter’sluckypetbirdwasswallowedCarter’sluckypetbirdwasswallowedbyasnake.CarterlefthisluckypetbirdinCairo. Summary:Thepastperfecttenseisoftenusedwiththesimplepasttense.Ifoneactionhappensbeforeanotherinthepast,thepastperfecttenseisused.(PPT8-9)“Wehidtheentrancetothetomb,”saidCarter.Cartersaidthattheyhadhiddentheentrancetothetomb.PresentPresentPastCartersaidthattheyhadhiddentheentrancetothetomb.TheyCartersaidthattheyhadhiddentheentrancetothetomb.Theyhidtheentrancetothetomb.Summary:Thepastperfecttenseisoftenusedinreportedspeech.(PPT10)IhaddonemyhomeworkthismorningbeforeIwenttothemuseum.PresentPresentPastIwenttothemuseum.IIwenttothemuseum.Ididmyhomeworkthismorning.Summary:Theuseofthepastperfecttensesimplyindicatesthatanactioncomesbeforeanotherpastaction.Itdoesnotmeanthatthepastactionhappenedalongtimeago.(PPT11)Bythe1920s,hehadbecomeanexplorer,searchingforthetombsoftheEgyptiankings.PresentPresentPastHehadbecomeanexplorerHehadbecomeanexplorer.The1920sSummary:Thepastperfecttenseisoftenusedwithtimeexpressionssuchaswhen,after,before,assoonas,until,by,forandalready.(PPT12)[Explanation]借用學(xué)生所熟知的語境及相關(guān)圖示，讓學(xué)生充分理解過去完成時(shí)的本質(zhì)——“過去的過去”。Step4Practice:thesimplepasttenseandthepastperfecttenseShowsomepicturesofanotheramazingpersonAmeliaEarhart.ReadthenotesaboutAmeliaEarhartonpage49andthentelluswhathappenedtoher.Letstudentsknowthatwhetherthesimplepasttenseorthepastperfecttenseisuseddependsonthesequenceoftheevents.Completethestoryonpage49.Completethearticleonpage50sothatthestudentsknowmoreaboutthedifferencesbetweenthesimplepasttenseandthepastperfecttense.Summary:Whetherthesimplepasttenseorthepastperfecttenseisuseddependsonthesequenceoftheevents.(PPT13-20)[Explanation]讓學(xué)生學(xué)會(huì)在語境中正確使用過去完成時(shí)，并了解過去完成時(shí)與一般過去時(shí)的區(qū)別。Step5ThedifferencesbetweenthepresentperfectandthepastperfectHowardCarterisoneofthemostfamousexplorerstheworldhaseverknown.HowardCarterbecamefamous.PastHowardCarterbecamefamous.PastPresentFutureSummary:Thepresentperfecttenseisusedwhenwearetalkingaboutapasteventwhichrelatestothepresenttime.(PPT21)GeorgeGouldhadbeentothetombbeforehecaughtahighfeveranddied.PresentPresentPastHecaughtahighfeveranddied.GeorgeGouldwenttothetomb.Hecaughtahighfeveranddied.GeorgeGouldwenttothetomb.Summary:ThePastPerfecttenseisusedwhenwearediscussingthepastandwanttotalkaboutanevenearlierevent.(PPT22)[Explanation]借用學(xué)生所熟知的語境及相關(guān)圖示，讓學(xué)生充分理解過去完成時(shí)與現(xiàn)在完成時(shí)的區(qū)別。Step6PracticeShowsomepicturesofanotheramazingperson—