现在完成时的被动语态(31PPT).pptx

现在完成时的被动语态(31PPT).pptx

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基于情境的英语语法教学第十一章动词的语态guessinggameWhathaschangedintheclassroom?

have/hasbeendone（过去分词）1.Thelightshavebeenturnedoff.2.Theblackboardhasbeencleaned.3.Thedoorhasbeenclosed.4.Thewindowshavebeenopened.5.Thefloorhasbeencleaned.现在完成时表示动作发生在过去,到现在已经完成或对现在仍有影响。

注：

现在完成时pastpresentfuturealready，sofar，yet，lately/recently，thesedays/years/weeks，since+时间点，for+时间段等。

现在完成时强调一个发生在过去的动作持续到现在或对现在造成的影响或结果。

其构成是:

have/hasbeen+done。

例如：

1.Thedirtyclotheshavebeenwashed.脏衣服都已经洗了。

2.Theplanhasbeenstudiedbytheexpertsforthreetimes.这项计划已经由专家研究过三次了。

Canyoumakemoresentences,using“have/hasbeendone”?

PracticeITallbuildings（build）everywhere.havebeenbuiltShoppingcentershavebeenbuilt（build）.Somefactories（setup）toimproveeconomies.havebeensetupeconomyknmn.经济；节约；理财（widen）.Theroadhasbeenwideneddust灰尘bin箱子，容器；dstbnMorehavebeenplaceddustbins（place）onthestreets.Moreandmoretreesandflowershavebeenplanted（plant）ontheeithersideoftheroads.Tallbuildings（build）everywhere.havebeenbuiltShoppingcentershavebeenbuilt（build）.Somefactories（setup）toimproveeconomies.havebeensetup（widen）.Theroadhasbeenwidened（place）onthestreets.MoredustbinshavebeenplacedMoreandmoretreesandflowershavebeenplanted（plant）ontheeithersideoftheroads.PracticeII：

Correctthesentences1.Greatchangeshavebeentakenplaceinmyhometown.2.Manymeasures（措施）havetaken.3.Citizenshavebeenrequestnottothrowrubbishandlittereverywhere.requested4.Thenumberofcarshavebeenlimitedtoreduceourpollution.has5.Moreandmorepeoplehassensedtheimportanceoftheenvironmentprotection.have6.Peoplehavebecameresponsibleforbuildingabeautifulhometown.becomebeenIusedtoliveinasmalltownwithtreesaround.Therewerenotallbuildingsandthestreetswerenarrow.Butinrecentyears,greatchangeshavetakenplace（takeplace）inmyhometown.Tallbuildings（build）everywhereaswellasshoppingcenters.Alsosomefactoriesimproveeconomies.Roadshavebeenbuilthavebeensetup（setup）tohavebeenwidened（widen）.Inordertokeepthecitycleanandtidy,manymeasureshavebeentaken（take）.Therefore,moredustbinsCitizenshavebeenrequested（request）nottothrowrubbishandlittereverywhere.havebeenplaced（place）onthestreets.Moreandmoretreesandflowershavebeenplanted（plant）onthehillsandeithersideoftheroads.Inaddition,thenumberofcarsMoreandmorepeople（sense）hashavesensedtheimportanceoftheenvironmentprotectionandhavebecome（become）responsibleforbuildingabeautifulhometowninafewyears.beenlimited（limit）toreduceourpollution.memorychallengeIusedtoliveinasmalltownwithtreesaround.Therewerenotallbuildingsandthestreetswerenarrow.Butinrecent（takeyears,greatchangesplace）inmyhometown.Tallbuildings（build）everywhereaswellasshoppingcenters.Alsosomefactories（setup）toimproveeconomies.Roads（widen）.Inordertokeepthecitycleanandtidy,manymeasures（take）.Citizens（request）nottothrowrubbishandlittereverywhere.Therefore,moredustbins（place）onthestreets.Moreandmoretreesandflowers（plant）onthehillsandeithersideoftheroads.Inaddition,thenumberofcars（limit）toreduceourpollution.Moreandmorepeople（sense）theimportanceoftheenvironmentprotectionand（become）responsibleforbuildingabeautifulhometowninafewyears.Howhastheplacechanged?

Usethesewords:

add,change,open,paint,put,turnon,takeaway,ThewindowThecapThelightThebasketballThesweaterThepaintingTwochairsThebooksThedisheshave/hasbeenhomework

（1）Correctthesentences1.Apersonalcomputerhasboughtbyus.2.Manyproblemshasbeenfoundwithournewcomputer.3.APChasbeenbuildedthewaywewanted.4.OurcomputerjusthasbeenjoinedtotheInternet.5.Thecomputerhadusedeverydaysinceweboughtit.6.Alotofe-mailshadwrittenonthecomputerinthepast5years.homework

（2）answers：

1.Apersonalcomputerhasbeenboughtbyus.2.Manyproblemshavebeenfoundwithournewcomputer.3.APChasbeenbuiltthewaywewanted.4.Ourcomputerhasjustbeenjoinedtotheinternet.5.Thecomputerhasbeenusedeverydaysinceweboughtit.6.Alotofe-mailshavebeenwrittenonthecomputerinthepast5years.