Unit6NurturingnatureUsingLanguage现在完成进行时教学设计高中英语外研版选择性

Unit6NurturingnatureUsingLanguage现在完成进行时〔ThePresentPerfectContinuousTense〕教学设计教学目标Teachingaims:Masterthestructureandusagesofthepresentperfectcontinuoustense.Figureoutthedifferencesbetweenthepresentperfecttenseandthepresentperfectcontinuoustense.Learntousethepresentperfectcontinuoustensetotalkaboutthechangesinourdailylife.教学内容Teachingdifficultpoint:Todistinguishthepresentperfecttenseandthepresentperfectcontinuoustense.Teachingkeypoint:Theusagesofthepresentperfectcontinuoustenseandhowtouseitcorrectlyinrealsituations.教学过程Step1:GreetingandLeadinginT：Hi,boysandgirls.Weletomymicroclass.First,let’swatchavideo.(showavideoaboutPeppaPig)(3:103:33)Now,let’slookatwhattheysayintheconversation.Guesswhatwe’vebeendoing?Haveyoubeenwatchingtelevision?You’vebeenjumpinginmuddypuddles.We’vebeenjumpingthemuddypuddles.Whatdothesentenceshaveinmon?Yes,theyallhavethesamestructure:havebeendoing(下划线强调〕Actually,itisthestructureofanewtensecalled“ThePresentPerfectContinuoustense.〞Step2:NewknowledgeT:Doyouknowhowtousethetense?Let’swatchanothervideoandlearnhowtouseit.AvideoaboutAndrewandAndrew’sfamily.1stusage:T:Let’slookatasentencefromthevideo:We’vebeenwaitingforyou.(视频截图)SowhendidtheystarttowaitforAndrew?(inthepast)Whendidtheystoptheactionofwaiting?(itstoppedjustatthemomenttheysaweachother)Timeline:PastpresentfutureSothisisthefirstuseofthetenseItisusedtodescribeactionsthatstartedinthepastandstopjustbeforethespeakerspoke.表示一个动作从过去某时开头，始终持续到说话时候刚终止。Let’slookatmoreexamples:I'vebeendoingmyhouseworkallmorningandI'vejustfinishedit.FinallyestheQatarWorldCup.Wehavebeenlookingforwardstoitforages.2ndusage:T：Now,let’smovetothesecondusage.Anothersentencefromthevideo.Dadhasbeencleaningthehouseforseveralhours.T:WhendidDadbegintheactionofcleaning?(severalhoursago.)Isdadstillcleaningthehouse?(Yes,heis.)Whenwillhestoptheactionofcleaning?(wedon’tknow.)Timeline:PastpresentfutureSo,thisisthesecondusage.Itisusedtodescribeactionsthatstartedinthepast,stillinprogressandmightcontinueinthefuture.即表示过去的动作持续到现在并有可能持续下去的动作。Let’slookatanexample:Whatabadday!Ithasbeenrainingheavilyforthewholemorning.3rdusage:T:Lookattwomoresentencesfromthevideo.Wehavebeenplanningitforawholeweek.Wehavebeentalkingaboutitfordays.T:Whendidtheybegintheiractionofplanningandtalking?(inthepast)Didtheyplanortalkaboutthepartyallthetimewithoutstop?(No,theytalkedaboutitfromtimetotime.)Timeline:PastpresentfutureSo,hereesthethirdusage:Itisusedtodescribetherepetitionofactions(onlyintermittent,notnonstop).表示动作的反复〔只断断续续，而非始终不停〕Moreexamples:Davidhasbeencoughingalotlately.Heoughttogiveupsmoking.Step3:Differencesbetweenthepresentperfecttenseandthepresentperfectcontinuoustense.T：What’sthedifferencebetweenthepresentperfecttenseandthepresentperfectcontinuoustense?Let’slookatacoupleofsentences:1)I’vebeencookingdinner.Itwillbereadysoon.我始终在做晚餐，立刻就会好。2)I’vecookeddinner.It’sreadynow.我做了饭，现在已经好了。So,what’sthedifference?Theyhavedifferentfocuses.\o"添加到保藏夹"Thepresentperfectcontinuoustenseisusedtodescribewhathappenedinthepastandmaystillbegoingon.itfocusesontheaction.Thepresentperfecttenseisusedtodescribesomethingthathappenedinthepastbuthasendednow.Itfocusesontheresultandinfluence.Haveyougotit?Step4:SummaryLet’shaveasummaryoftoday’sclass.Wehavelearnedanewtensecalledthepresentperfectcontinuoustense.Welearneditsstructure,threeusagesaswellasthedifferencesbetweentwotenses.Ifyouhaveanyproblem,pleaserefertothenotesontheblackboard.That’sallfortoday’smicroclass.thePresentPerfectContinuousTense总结例句构成have/hasbeendoingGuesswhatwe’vebeendoing?Haveyoubeenwatchingtelevision?用法

1〕表示一个动作从过去某时开头，始终持续到说话时候刚终止。We’vebeenwaitingforyou.2〕即表示过去的动作持续到现在并有可能持续下去的动作。Dadhasbeencleaningthehouseforseveralhoursaswell.3〕表示动作的反复〔只断断续续，而非始终不停〕Wehavebeenplanningitforawholeweek.Wehavebeentalkingaboutitfor