導學式教案（九）年級（英語）備課組課ThePassiveVoice學習目標1.GrasptheusesandformsofthePassivevoice.2.ThewaystochangethePassiveVoicebydoingsomeexercises重點難點TeachingImportantPoints:1.GrasptheusesandformsofthePassivevoice.2.ThewaystochangethePassiveVoicebydoingsomeexercisesTeachingDifficultPoints:GrasphowtochangetheActiveVoiceintothePassiveVoice.教法選擇PracticeandConsolidate課型Revision課前準備audiotape,flashcards,pictures是否采用多媒體yes教學時數1課時教學時數第1課時備課總數第課時課堂教學過程設計教學內容教師活動學生活動Step1.lead-inshowteachingaims.(onthescreen).Step2.RevisionShowpicturesandsentencesonthescreen.ArecorderisusedinourEnglishclasseveryday.Footballisplayedallovertheworld.Acameraisusedfortakingphotos.Abankwasrobbedyesterday.Aman-madesatellitewassentupintospacelastyear.Thetreemustbeplantedontheground.Thegroundwillbecoveredwithtreesinafewyears’time.Theywillbesenttothehospitalatonce.Atalkwillbegivensoon.TheearthisbeingdugnowThefoodhasbeeneatenupalready.LookandfindoutthesimilaritiesanddifficultiesStep4.Warmingup.1.當我們不知道誰是動作的執行者，2.沒有必要指出誰是動作的執行者時，3只需強調動作的承受者時，要用被動語態。被動語態：主語是動作的承受者。Showteachingaims.(onthescreen).Showsomepicturesandsentences.SslookatpictureandlearnnewsentencesGivesomeadviceExplainReadandtranslateTalkaboutthesimilaritiesanddifficultiesAnswerthequestions被動語態的構成：be+vt.p.p.般現在時——am／is／are+vt.p.p.般過去時——was／were+vt.p.p.情態動詞——aux.v.(must／can／could／may…+be+vt.p.p.)現在進行時——be(am、is、are)+being+vt.p.p.一般將來時——willbe／begoingtobe+vt.p.p.現在完成時——have／has+been+vt.p.p.主動語態如何變成被動語態呢？（主動變被動）1.主動語態的賓語變成被動語態的主語（賓語變主語）。2主動語態的謂語變成被動語態的謂語（主謂變被謂）3主動語態的主語變成介詞by的賓語。主語變by賓）。4主動語態和被動語態保持（時態一致）。WegrowcottoninGuazhou.CottonisgrownbyusinGuazhou.5.帶雙賓的謂語動詞當把直接賓語改成主語時，謂語動詞后必須加適當的介詞:to或for.6.一些動詞不定式在主動語態中省略,變成被動語態時，必須加上to。如：make,see,hear注:Ａ.不及物動詞不用被動語態.如:happen.appearＢ.連系動詞不用被動語態。如be.look.seem.feelＣ.當此動詞表示事物的自然屬性的時候，不用被動語態。Step3.Practice:Fillintheblanksusingrightforms:1.Tea________(grow)inthesouthofChina.2.Thebridge________(build)bysoldiersin1998.3.Thiscake_________(test)well.4.Ourclassroommust_________(clean)everyday.5.Theworkers__________(work)8hours.HelpthestudentssummarizetheformsandexplainteachandexplainthewaysHelpthestudentsdotheseexercisesandexplainsomedifficultiesteachthewaystodosuchexercisesSummarizegrasptheformsgraspthewaystochangegraspbydoingandtranslatingtheexercises(theycanhelpeachotheriftheyhaveanyquestions)Summarizewiththeteacher作業設