九年级英语：Unit 8 Keeping Safe学案（北师大版）.doc

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1、Unit8KeepingSafe一.教学内容：Unit8KeepingSafe 二.教学重点：1、祈使句2、被动语态3、课内知识点 三.具体内容：（一）祈使句：肯定结构：1.Do型（即：动词原形（＋宾语）＋其他成分）Pleasehaveaseathere.2.Be型（即：be＋表语＋其他成分）Beagoodboy!3.Let型（即：let＋宾语＋动词原形＋其他成分）Letmehelpyou. 否定结构：1.Do型和Be型的否定形式都是在句首加don’t构成.Don’tforgetme!2.Let型的否定形式有两种:Don’t＋let＋宾语＋动词原形＋其他成分let＋宾语＋not＋动词原形

2、＋其他成分Don’tlethimgo./Lethimnotgo.3.有些可用no开头，用来表示禁止性的祈使句.Nosmoking!Nofishing! 祈使句的反意疑问句：1.祈使句为肯定句式，其反意疑问句表示请求时，用willyou,表示邀请、劝说时，用won’tyou.Besuretowritetous,willyou?Cometohavedinnerwithusthisevening,won’tyou?2.祈使句为否定句式，反意疑问句用willyou.Don’tsmokeinthemeetingroom,willyou?3.let开头的祈使句在构成反意疑问句时，除let’s用sha

3、llwe外，其他都用willyou.Lettheboygofirst,willyou?Let’stakeawalkaftersupper,shallwe? （二）被动语态：1.一般现在时：am/is/are+doneThebookisreadbychildren.2.一般过去时：was/were+doneHewastakentothehospitalyesterday.3.一般将来时：willbe+done/begoingtobe+doneThestrawberrywillbefrozeninthreehours.Dinnerisgoingtobecookedat6o’clock.4.情

4、态动词+be+doneThemeatshouldbekeptinafridge.注意：1、带双宾语的主动句子变为被动语态时只能将一个宾语变为主语。WearetaughtEnglishbyher.Englishistaughttousbyher.Thecoatwasboughtforme.2、主动语态不带to的不定式变被动语态要还原to.Thebossmadehimworkover12hoursaday.Hewasmadetoworkover12hoursaday.3、短语动词用于被动语态应作为一个整体，不能分开。Themeetinghasbeenputoff. （三）语言点：1.keep

5、awayfrom远离Mothertoldhimtokeepawayfromdrugs.妈妈让他远离毒品。2.short-cut捷径Don’ttakeshort-cutsthroughemptybuildingsorparkinglots.不要从空旷的大楼或停车场那里抄近路。3.avoiddoing…避免做……Theyallavoidmentioningthatname.他们都在避免提到那个名字。4.knockdown撞倒，击倒Jimknockeddownalittlegirlwhenhewasrunninginthestreet.吉姆在街上跑时撞倒了一个小女孩。 Unit8词组/短语1.

6、encouragesb.todo2.standfor3.bebasedon4.accordingto5.参加6.doasurvey7.takeshort-cuts8.即使9.inhospital10.keepsafe11.picksb.up12.sendto13.knockdown14.alltheway 课堂练习：一、单选1.–Isthatyourbike?--No,itisn’t_____________.ButIwillbuyonelikethat.A.hersB.herC.mineD.my2.–I’msorry.Ididn’twintheraceyesterday.--That’

7、sOK.You___________wineverytime.A.can’tB.mustC.canD.mustn’t3.–whoisthatmanoverthere?--Heisournewteacher,andhewillteach_________Englishthisterm.A.weB.ourC.usD.ours4.–What’stheweatherliketomorrow?--Theradiosaysitisgoingto