學必求其心得，業(yè)必貴于專精學必求其心得，業(yè)必貴于專精學必求其心得，業(yè)必貴于專精年級高一學科英語總課時課題M2Unit1-—-—Grammar1第___1__課時主備人司倩倩上課時間鎖定目標找準方向備注Learningaims1。Learnhowtoformandusethepresentperfecttense。2.Understandwhenthepresentperfectcontinuoustenseisusedinsentences.自主預學摸清學情預學指導:1。學生自主預習課文中的grammar部分2。完成預習講義中的部分預學檢查:檢查課文預習的情況，根據講義做的情況進行講解合作探究攜手共進Step1Lead—inGooverthenewsstoryonPage2andfindthesentencesusingthepresentperfecttense。Pleaseexplainwhythetenseisusedinthesesentences。Step2Presentperfecttense1。Theformofthepresentperfecttense:has/havedone.2。Talkabouttheusesofthepresentperfecttense。A。Weusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast,butareconnectedtothepresent。表示過去發(fā)生的事對現(xiàn)在仍有影響。ThedisappearanceofJustinhasmadeKellyveryunhappy。（Justin在過去失蹤，但Kelly至今仍舊為他的失蹤感到不高興。）B.Wealsousethepresentperfecttensetotalkaboutsomethingthatstartedinthepast，andisstillhappeningnow。表示過去開始的動作一直延續(xù)到現(xiàn)在.IhavenotseenJustinsincelastFridaynight.（從上周五晚上到現(xiàn)在一直都沒有見到過。)C。Weusethepresentperfecttensewhentheexacttimeofanactionisnotclearorimportant。Weuseitwithtimeexpressionssuchas：alreadyeverforjustlatelyneverrecentlysinceyetExercise:Completethefollowingsentenceswiththepropertense。(1）Wehavestudied（study)Englishforaboutfiveyears。（2)Theyhavelived（live)inthesouthsincetheirdaughterwasborn。(3）Ihaveread(read）yourarticlethreetimes。It’swellwritten.（4)Thestudenthasfinished(finish)herhomeworkalready。(5）Erichasjustgone（go）backtohishometown.Weusealreadyforaffirmativestatementsandyetfornegativestatements。Weusefor+aperiodoftimeandsince+apointintime。D.Weusethepresentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeago.Inthiscase,justisused。Payattentiontothepositionofjust。Thepolicehavejustfinishedsearchingthearea。E.Wecanalsousethepresentperfecttenseforrepeatedactions,thatis，weusethepresentperfecttensewiththetimeexpressionsonce/twice/threetimes…3。Readthediaryentryandthencompleteitusingthecorrectformsoftheverbsinbrackets.Answers：（1）saw(2）hasvisited（3)loves（4）hasn'tvisited（5)hasswum(6）hasnevermet(7)hasdived（8）hasfound（9）hasn’tfound（10)Has，been拓展提升學以致用Step3Presentperfectcontinuoustense1.Theformofthepresentperfectcontinuoustense：have/hasbeendoing2.TalkabouttheusesofthepresentperfectcontinuoustenseA.WesometimesusethePresentperfectcontinuoustensetotalkaboutactionsthatstartedinthepastandarestillcontinuing.表示過去開始的動作一直延續(xù)到現(xiàn)在并仍在繼續(xù)之中。IhavenotbeensleepingwellsinceIreturnedhome。“我”回家后一直都沒有睡好,現(xiàn)在也沒有睡好。B。Wealsousethepresentperfectcontinuoustensetotalkaboutactionsthathavejustfinishedbutarestillconnectedtothepresentinsomeway。表示過去開始的動作剛結束并在某種情況下與現(xiàn)在有關聯(lián)。Kelly:SorryI’mlate．Haveyoubeenwaitinglong？Sally:Yes．Ihavebeenwaitingforanhour。凱利剛到,對方雖然不再等了，但已一直等到現(xiàn)在.3.Fillinthemissingwordsonpage9Answers：（1）havebeentalking(2)havebeentaking（3)havebeenstudying(4)haveseen(5）havebeenwriting反饋評價體驗成功Step4Fixthemistakesinthesentencesbelow。1.DerekhasliveinJapan，Australia,andNewZealand._____________________________________________________2。Ritahavefinishedherhomeworkalready.________________________________________________________3。EllenandStevenhaveneverateatthatrestaurantbefore.________________________________________________________4。Julieistiredbecauseshehaven’ttookanapyet.________________________________________________________5。Ihaveatesushi，butIdon'treallylikeit._______________________________________________________6.Ourbaseballteamhaswin20gamesthisseason.________________________________________________________7.IhaveneversawtheGreatWallofChina，butIhopetose