2013版九年级英语上册 Module 4 Great inventions Unit 3 Language in use配套课件 外研版.ppt

《2013版九年级英语上册 Module 4 Great inventions Unit 3 Language in use配套课件 外研版.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Module4GreatinventionsUnit3Languageinuse1Leadin2LanguagepracticePaperandprintinghavebeenusedforages.Thebatteryhasn’tbeenchargedforacoupleofmonths.Hasitbeenpublishedyet?现在完成时的被动语态：have/has（not）been+过去分词3Conclusion:一般现在时——am／is／are+动词的过去分词一般过去时——was／were+动词的过去分词被动语态的构成：be+动词的过去分词被

2、动语态：主语是动作的承受者。当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者时，或者只需强调动作的承受者时，要用被动语态。（一）Presentation4InformationcanbekeptonCD-ROMs.Bookscouldonlybeproducedoneatatimebyhand.Canbooksbereplacedbycomputers?情态动词的被动语态：情态动词（not）+be+过去分词5表格：被动语态基本结构时态被动语态结构一般现在时一般过去时现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时am/is/a

3、redonewas/weredoneam/is/arebeingdonewas/werebeingdoneshall/willbedonewouldbedonehave/hasbeendonehadbeendone6Conclusion:主动语态如何改成被动语态？1.主动语态的宾语改成被动语态的主语。2.主动语态的谓语动词改成被动语态的谓语动词。do3.注意保持时态和人称的一致。4.带双宾的谓语动词有两种改法。当把直接宾语改成主语时，谓语动词后必须加适当的介词:to，for.（二）bedone7例如：givebegivento此类动词还有：pass，s

4、how，send…再例如：buybeboughtfor此类动词还有：make，draw，cook，mend…5.一些动词不定式在主动语态中省略to作宾语补足语，改成被动语态时，to必须还原。注:不及物动词（vi.)不用被动语态。例如:happen，takeplace，appear，disappear…8几种特殊结构1.Myunclegavemeagiftonmybirthday．2.Weoftenhearhimplaytheguitar．Iwasgivenagiftonmybirthday．Agiftwasgiventomeonmybirthday.H

5、eisoftenheardtoplaytheguitar.注意：see,watch,hear,notice,feel,make,listento,lookat等动词/短语后作宾语补足语的不定式都不带to；但改成被动语态后必须带to。9ArecorderisusedinourEnglishclasseveryday.recorderEnglishclassLet’spractice！！10use…foroftenplayFootballisoftenplayedallovertheworld.Acameraisusedfortakingphotos.Le

6、t’spractice！！11robyesterdaysenduplastyearAman-madesatellitewassentupintospacelastyear.Abankwasrobbedyesterday.Let’spractice！！12mustplantcoverwithinafewyears’timeThetreemustbeplantedontheground.Thegroundwillbecoveredwithtreesinafewyears’time.Let’spractice！！13sendtorightnowatalkgi

7、vesoonTheywillbesenttothehospitalrightnow.Atalkwillbegivensoon.Let’spractice!!14digTheearthisbeingdugnow.eatupalreadyThefoodhasbeeneatenupalready.Let’spractice!!15Completethesentenceswiththecorrectformofthewords.1.Ithinkonedaybooksmay_____________(replace)completely.2.Mybike____

8、_________(leave)atschool,soIhavetotakethebustos