现在完成时的被动语态(31PPT).pptx
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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.
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