Unit3TheInternetDiscoveringUsefulStructures课件高中英语人教版23

Unit3TheInternetDiscoveringusefulstructuresActiveandpassivevoices单击输入您的封面副标题Lead-in

被动语态复习一、什么是语态？语态是英语动词的一种表现形式，用来说明_________和__________之间的关系。二、语态的种类：___________和____________主语谓语动词主动被动挑事儿：Ifyouthinkyou'resuchatoughguy,thenhitme.Youhitme!Comeandhelpme!Iwashit/beaten.现在完成时与现在完成时被动语态的动词形式找出下面句子的谓语结构，哪些是主动？哪些是被动？Jan’slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.被动主动主动被动

现在完成时谓语结构

主动被动have/hasdonehave/hasbeendone......已经被......现在完成时被动语态have/hasbeendone现在完成时的被动语态bedonehave/hasdone(动词的过去分词）Howdoweformthepresentperfectpassivevoice?现在完成时的被动语态感知句子，完成方框下的小题一名敌人被击杀。Anenemyhasbeenslained.我方队友被击杀。Anally

hasbeenslained.你被击杀了。Youhavebeenslained.1.以上句子中所使用的时态和语态是

。2.现在完成时的被动语态的构成为：

。现在完成时的被动语态have/hasbeen＋v.过去分词肯定形式：Hishomeworkhasbeenfinished.否定形式：Hishomeworkhasnotbeenfinished.一般疑问句:Hashishomeworkbeenfinishedyet?特殊疑问句：Howlonghashishomeworkbeenfinished?主语+have/hasbeendone...主语+have/hasnotbeendone...have/has+主语+beendone...?疑问词+have/has+主语+beendone...?结构形式现在完成时的被动语态用法1.现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already,yet,just,never,recently等副词连用。例：Themachinehasalreadybeenrepaired.2.表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“Howlong...?”句型中。例：Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.Howlonghasthisfilmbeenshown?现在完成时的被动语态注意1.

现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别Themachinehasbeenrepaired.（说明动作发生在过去，对现在有影响，“现在修好了”）Themachineisbeingrepairednow.（说明动作正在进行）Themachinewasrepairedyesterday.（只说明动作发生在过去）2.非延续性动词，如borrow,finish,begin,start,buy,

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，则要改换动词或时态。例：工程已开始三个月了。

Theprojecthasbeenstartedforthreemonths.（F）

Theprojecthasbeengoneonforthreemonths.（T）现在完成时的被动语态提示常与现在完成时连用的时间状语有：already

已经

yet

已经recently/lately

最近

sincethen

从那时起eversince

自那以来

ever

曾经sofar

迄今为止

bynow

到现在为止foralongtime

很长一段时间inrecentyears

在最近几年里in/during/overthepast/lastyears

在过去的几年里现在完成时的被动语态

Canyoumakemoresentences,using“have/hasbeendone”?PracticeI

Tallbuildings_______________(build)everywhere.havebeenbuiltShoppingcenters___(build).havebeenbuiltSomefactories__(setup)toimproveeconomies.havebeensetupeconomy[ɪ'kɒnəmɪ]n.经济；节约；理财Theroad___________________(widen).hasbeenwidenedMoredustbins

___

(place)onthestreets.dust灰尘bin箱子，容器；['dʌstbɪn]havebeenplacedMoreandmoretreesandflowers

___(plant)ontheeithersideoftheroads.havebeenplanted1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?Hasthebuttonbeenpressedyettocopythefile?Hasacommentabouttheonlinedatabasebeenmade?1A:Whycan'tIaccessmyaccount?B:____yourpersonalinformation____________(update)?2Bothlearningsites_______________(visit)byover10,000peoplesincelastyear.3Thiskeyboard_______________(notuse)foralongtime.4Canyoutellmewhat____________(do)tobridgethedigitaldivide?5InthepastyearI_______________(inspire)tobuye-booksinsteadofpaperbooks.6A:WherecanIreadthosecomments?B:Online.They_______________(post)already.7Itseemsthatmorehealthproblems_______________(cause)bymobilephones.8Thatapp______________(delete)frommysmartphonealready.Hasbeenupdatedhavebeenvisitedhasnotbeenusedhasbeendonehavebeeninspired1Completethesentenceswiththepresentperfectpassivevoiceofthegivenverbs.WORKBOOKP.74havebeenpostedhavebeencausedhasbeendeletedSUMMMARY现在完成时的被动语态含义结构表示过去发生的被动动作现在已经完