Unit+3+The+Internet+Discovering+useful+structures+教學(xué)設(shè)計 高中英語人教版（2019）必修第二冊

周次第五周授課班級高一5班授課教師劉倩上課時間周一第9節(jié)課題B2Unit3Grammar-Thepassivevoiceofthepresentperfecttense（現(xiàn)在完成時被動態(tài)）學(xué)習(xí)目標(biāo)1.Studentscanlearnthebasicpatternandtheusageoftheperfecttense.2.Studentscanusethestructurepreciselyandfreely.感知與學(xué)習(xí)一．Leadin----WatchashortvideoYouhaveslainanenemyvsAnenemyhasbeenslain（Purpose:通過學(xué)生熟知的游戲臺詞讓其感知現(xiàn)在完成時及其被動態(tài)的運用）二．PresentationReviewtheknowledgeaboutthepresentperfecttenseandpassivevoice.（Purpose：通過復(fù)習(xí)現(xiàn)在完成時和被動語態(tài)，為現(xiàn)在完成時被動語態(tài)做好知識鋪墊）Step1.定義Step2結(jié)構(gòu)Step3用法(1)表示動作已完成,強調(diào)過去的動作對現(xiàn)在造成的影響或結(jié)果,主語和謂語之間為被動關(guān)系,通常與already,yet,just,never,recently等副詞連用,放在has/have的后面,有時也可放在句末。(2)表示一個被動的動作或狀態(tài)開始于過去,持續(xù)到現(xiàn)在,并可能持續(xù)下去,常與for或since引導(dǎo)的時間狀語連用,或用于“Howlong...？”句型中。(3)用在時間或條件狀語從句中,表示將來某時已完成的動作,即用現(xiàn)在完成時的被動語態(tài)替代將來完成時的被動語態(tài)。Step4注意1.不及物動詞和不及物動詞短語，沒有被動語態(tài)。如rise,happen,takeplace,breakout,comeabout,survive,remain,last,die,disappear,end,fail,belongto,consistof...2.雖然一般說來只有及物動詞才有被動語態(tài)，但許多“不及物動詞+副詞或介詞”構(gòu)成的短語動詞，相當(dāng)于及物動詞，也可以有被動語態(tài)，但變被動語態(tài)后，不可把介詞或副詞漏掉。如laughat,operateon,listento,lookafter,takecareof,thinkof,talkabout,handin,catchsightof,makeuseof,payattentionto,turnon…borrow,begin,start,buy,marry,open,join，finish，return等非延續(xù)性動詞的現(xiàn)在完成時的被動語態(tài)不能與表示一段時間的狀語連用，如forfourdays等。若要表達相應(yīng)的意思，需要改變動詞或時態(tài)。summary練習(xí)檢測句型轉(zhuǎn)換1.MyfriendhasboughtanewsmartphonemadeinChina.→___________________________________________bymyfriend.2.Sinceyouhavefinishedyourwork,youcanhavearestnow.→Sinceyourwork___________________,youcanhavearestnow.3.Anunknownvirushasjustattackedmycomputer.→_________________________________byanunknownvirus.4.Totheirjoy,theyhavesolvedthedifficultproblemallbythemselves.→Totheirjoy,thedifficultproblem__________________allbythem.5.Theyhavetranslatedthebookintomorethantwentylanguages.→_________________________________intomorethantwentylanguages.6.Wehavenotfoundawaytodealwiththesituationyet.→_________________________________todealwiththesituationyet.7.ThebosshasappointedTommanageroftheengineeringdepartmenttotaketheplaceofGeorge.→__________________________________oftheengineeringdepartmentbythebosstotaketheplaceofGeorge.8.Theteamhasdevelopedakind