現(xiàn)在完成時(shí)八分鐘微課腳本冀教版英語八年級下冊

教師姓名學(xué)校名稱微課名稱PresentPerfectTense視頻長度錄制時(shí)間知識點(diǎn)來源學(xué)科：英語年級：八年級ObjectivesTointroducestudentstotheconceptandstructureofthepresentperfecttense.Toenablestudentstounderstandandusethepresentperfecttensecorrectlyindifferentcontexts.Toimprovestudents’listening,speaking,reading,andwritingskillsthroughpresentperfecttensepractice.DifficultpointMasterthesentencestructureofPerfectPresentTenseContentsIntroductiontothePresentPerfectTenseBriefoverviewofthetenseanditspurpose.Explanationofthebasicstructure:"have/has+pastparticiple".UsesofthePresentPerfectTense教學(xué)過程內(nèi)容時(shí)間Leadin(Theteacherwillplayashortvideo,includinganEnglishsong,andthelyricsare“I'vepaidmydues/I'vedonemysentence/Butmittednocrime/Andbadmistakes/I'vemadeafew/I'vehadmyshareofsandKickedinmyface”)20sPresentationTeacher:Hieveryone!Ihopeyouwouldenjoythesongandyoumustfindoutthatsomewordsinthelyricsaremarkedinred,likeI'vepaidmydues/I'vedonemysentence.WecallthemPresentPerfectTense現(xiàn)在完成時(shí).Let’slearnthetwomainusagesofPresentPrefectTense.現(xiàn)在完成時(shí)的用法一：表示過去發(fā)生或已經(jīng)完成的動(dòng)作對現(xiàn)在造成的影響或結(jié)果。E.g.Ihavealreadycleanedmyroom.表示已經(jīng)打掃了，房間是干凈的。Ihaveneverseenthesea.表示之前沒看過，現(xiàn)在看到了。Teacher:注意劃線部分的副詞already，never，我們稱為現(xiàn)在完成時(shí)的標(biāo)志詞，常見的有：already：“已經(jīng)”，通常用在肯定句中。Ihavealreadyfinishedmyhomework.yet:“仍然，還”，用在疑問句和否定句中。Haveyouhadyourbreakfastyet?ever:“曾經(jīng)”，通常用于疑問句和肯定句中。Ihaveeverseenthisfilm.never:“從來不”，用于否定句中。Ishefamous?Ihaveneverheardofhim.現(xiàn)在完成時(shí)的用法二：表示過去已經(jīng)開始，持續(xù)到現(xiàn)在并且有可能持續(xù)下去的動(dòng)作。E.gIhavereadthebookforalongtime.It’sreallyinteresting.讀書這一動(dòng)作從上個(gè)月開始，這個(gè)月仍在讀，并且會繼續(xù)讀下去。TomhaslivedinBeijingsince2020.Tom從2020年開始住在北京，還會繼續(xù)住下去。此時(shí)現(xiàn)在完成時(shí)常與“for+時(shí)間段”，“since+時(shí)間點(diǎn)/從句”等時(shí)間狀語連用。since+過去的時(shí)間點(diǎn)：Ihaveworkedheresince2020.for+一段時(shí)間：Ihaveworkedherefor4years.[Attention]此時(shí)謂語不可用非延續(xù)性動(dòng)詞。非延續(xù)性動(dòng)詞：不能延續(xù)，一瞬間就結(jié)束的動(dòng)作。常見：e,go,arrive,leave,begin,start,buy,fall,join,die,getup,bee,borrow,lend,find,finish等。這些動(dòng)詞可用于現(xiàn)在完成時(shí)，說明某個(gè)動(dòng)作的結(jié)果還在。但不能和表一段時(shí)間的狀語（howlong,since,for）連用。Hehaseback.(√）Hehasebackfortwohours.(×）非延續(xù)性動(dòng)詞延續(xù)性動(dòng)詞e/gobeherediebedeadborrowkeepbuyhavejoinbeinleavebeawayTeacher:Hehasebackfortwohours.(×）Hehasbeenherefortwohours.(√）現(xiàn)在完成時(shí)的結(jié)構(gòu)Teacher：Havingseensomanyexamples,wecanconcludethestructureofPresentPerfectTense.肯定句：主語+have/has+動(dòng)詞過去分詞否定句：主語+haven’t/hasn’t+動(dòng)詞過去分詞一般疑問句：Have/Has+主語+動(dòng)詞過去分詞Have/has此時(shí)為現(xiàn)在完成時(shí)，無實(shí)際意義。Teacher：Pleaselookattheboardandlet’strymoreexercisestogether.【Practice】I____________（未完成）myhomeworkyet.（haven’tfinished）______________finishedhishomeworkyet?(Hashe)Yes,hehas.No,he_______.(hasn’t)Wehavelearned1000words______October.（since）Thebookmustbegreat.Mysister______itfivetimes.（2023河北中考真題）readsB.hasreadC.isreadingD.wasreading(Teacher:根據(jù)標(biāo)志詞fivetimes，強(qiáng)調(diào)動(dòng)作完成的次數(shù)，可知用現(xiàn)在完成時(shí)hasread，選B。）Sorry,I_______amistake.Letmecorrectit.（2022河北中考真題）willmakeB.ammakingC.wasmakingD.havemade(Teacher:根據(jù)題干中Letmecorrectit讓我更正它?？芍以谶^去犯了一個(gè)錯(cuò)誤，對現(xiàn)在造成的影響是我要更正它，表示過去發(fā)生的事情對現(xiàn)在造成的影響是現(xiàn)在完成時(shí)態(tài)，該時(shí)態(tài)的結(jié)構(gòu)是主語+have/hasdone，則D選項(xiàng)符合題意。William_______sixbooks,andallofthemarebestsellers.（2021河北中考真題）willwriteB.iswritingC.haswrittenD.waswriting(Teacher:根據(jù)后半句漢語意思:都是暢銷書,說明前