Unit3TheInternetDiscoveringUsefulStructures现在完成时被动语态课件高中英语人教版 3.pptx

Unit3

DiscoveringUsefulStructure

PresentPerfectPassiveVoice;Whatispresentperfecttense?;IhavelivedinChinafor5years.

我在中国住了5年。（从5年前到现在，现在还在中国）;1)表过去开始的被动动作一直持续到现在，常连用的时间状语有：for+段时间，since+时间状语(从句)，thesedays,sofar,uptonow,inthelast/pastfewyears等。

egThisclasshavebeentaughtbyMr.Brownfortwoyears.

HisChinesehasbeenimprovedalotsincehecametoChina.

Rowling’snovelshavebeentranslatedintomanyforeignlanguagessofar.;2)表某被动动作对现在造成的影响或结果，常与already,yet,just,ever,never,recently等连用。

egThebikehasnotbeenrepairedyet.

IhavealreadybeenintroducedtoMr.Smith.

注意：有些动词没有被动语态,如不及物动词happen,takeplace,breakout等。;肯定式：;thebuildings,

destroy,

earthquake;machine;inourcity,

anewbridge,build;recently,

manytrees,

plant,

alongtheroad;sevenHarryPorterbooks,

J.K.Rowling,

sofar,

write;Youhaveslainanenemy.

Yourteamhasdestroyedtheturret.;思考：什么时候用被动语态?

;;例句;;1.Bothlearningsites___________________(visit)byover10,000

peoplesincelastyear.

2.Greatchanges___________________(takeplace)inmy

hometownandalotoffactories_________________(setup).

3.Thiskeyboard____________________(notuse)foralongtime.;

4.Inthepastfewyears,I__________________(inspire)to

buye-booksinsteadofpaperbooks.

5.Tillnow,threefilms_______________(show)inthat

smallvillagethismonth.

;

1.Thebuildinghassetupforseveralyears.

2.Thewindowshavebeenbroke.

3.Aterriblethinghasbeenhappenedtoher.

4.Jimhascaughtbythepolice.

;;时态;;;?一般过去时的被动语态表示一个被动的动作发生在过去；

?现在完成时的被动语态表示被动的动作或状态发生在过去，但一直持续到现在或者强调过去的动作对现在有影响。;;;现在完成时的被动语态和现在分词完成被动式两种形式很像，但功能和意义不同。前者是谓语动词的时态和语态变化，后者是非谓语中现在分词的时态和语态变化。;;4.Progress_________(be)sofarverygoodandweare

surethattheworkwillbefinishedontime.

5._____________(eat)atthecafeteriabefore,Tina

didn’twanttoeatthereagain.

6.Noagreement____________