人教版高中英语必修二课件：Unit-3-Computers---grammar课件

ThePresentPerfectPassiveVoice现在完成时的被动语态Grammar表格：被动态基本结构am/is/aredonewas/weredoneam/is/arebeingdonewas/werebeingdonewillbedonewouldbedonehave/hasbeendonehadbeendone歌诀是：被动语态be字变，过去分词跟后面。

定义：现在完成时的动作或情况虽然发生在过去，但它强调的是与现在的关系，用来说明现在的情况。现在完成时态结构：(have/has+过去分词)现在完成时态TheprogrammehasbeenbroadcastedsinceNovember.思Thefivechildrenhavebeeneducatedthroughthegame.Thefivefamilieshavebeentalkedaboutalotnowadays.Lead-inTheirphotoshavebeenmadefunofbythenetizens.现在完成时被动态结构：

have/has+been+过去分词时间状语现在完成时常与already,yetrecently,sofar,bynow,uptillnow,since.....,before......等连用学以致用

Manyhouses______________duringthepast10years(build)Manytrees_____________alongthestreet.(plant)havebeenbuilthavebeenplantedTheexpertshavestudiedtheplanforthreetimes.（变为被动态）Theplanhasbeenstudiedbytheexpertsforthreetimes议展评Thiskindoffoodhasbeenadvertisedonthenewspaperforamonth.否定句Thiskindoffooddidn’tadvertiseonthenewspaperforamonth.(改错)hasn'tbeenadvertisedDoeshiskindoffoodbeenadvertisedonthenewspaperforamonth.(改错)一般疑问句HasWhathasadvertisedonthenewspaperforamonth?(改错)been特殊疑问句

3.注意问题。

（1）副词的位置often,usually,always,never,hardly,seldom等副词置于have/has和been中间。

Suchamanhasbeenhardlybelieved.（改错）hashardlybeen（2）并不是所有动词都有被动语态____,______,_______,________,cost,last等不及物动词或词组无被动语态happen,takeplace,appear,make学以致用GreatchangeshavebeentakenplaceinChinasince1978.（改错）

Thebookisbelongedtome.（改错）不及物动词有哪些？趋向性动词go,come,arrive,stand,measure,rise,使役动词或make,let,have等其他happen,takeplace,dropin等

（3）一些特殊动词,如borrow,finish,begin,buy,start,return,marry,open,join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则需改换动词或时态。

【学以致用】Mybrotherhasboughtthisbikeforalmostfouryears.（改错）

Howlonghasthisbookbeenbought（判断正误）

Howlongagowasthisbookbought（判断正误）hadFT（4）带有双宾的词，如_____,_____,____，_____,____,______,_____,_____等，变为被动语态时，将其中一个宾语变为主语，其他借助介词to或者for。【学以致用】Theteacherhasgiventwinsabook.（用被动时态对句子进行改写）

Abook_____________bytheteacher____thetwins.Thetwins_____________abook____theteacher.give,send,bringtake,teach,tell,write,buy,payhasbeengiventohasbeengivenby（2）带复合宾语的动词变为被动语态，只能将宾语变为主语，原来省略to的不定式作宾补的，被动语态_____要还原。【学以致用】Myparentshavemademeworkhard.（改为被动态）

________________________________________toIhavebeenmadetoworkhardbymyparents

检

1.Theschoolboardismadeupofparentswho______tomakedecisionsaboutschoolaffairs.

A.hadbeenelected B.hadelected

C.havebeenelected D.haveelected

2.---Howlong_____atthisjob?---Since1990.

A.wereyouemployedB.haveyoubeenemployed

C.hadyoubeenemployedD.willyoubeemployedCB改错1.Thebookhasnotbeenborrowedlastmonth.2.Thenewdictionariesareveryuseful,sotheysellwellandhavesoldoutalready.3.Theproblemhasbeenpaidenoughattentionsinceitcameupa