Unit3 Discovering Useful Structures課件-高中英語人教版（2019）必修第二冊

U3.Structures互聯(lián)網極大地改變了Jan的生活。(強調完成)TheinternethasgreatlychangedJan’slife。Jan的生活極大地被互聯(lián)網改變了。(強調事實)Jan’slifeisgreatlyimprovedbytheInternet.Jan的生活極大地被互聯(lián)網改變了。(強調已完成且對現(xiàn)在有影響)Jan’slifehasbeengreatlyimprovedbytheInternet.Translate人們寫了很多關于互聯(lián)網的文章。(強調完成)PeoplehavewrittenmanyarticlesabouttheInternet很多互聯(lián)網的文章被人們書寫了。(強調事實)ManyarticlesabouttheInternetarewrittenbypeople很多互聯(lián)網的文章被人們書寫了。(強調已完成且對現(xiàn)在有影響)ManyarticlesabouttheInternethavebeenwritten.Translate互聯(lián)網極大地改變了Jan的生活。(強調完成)TheinternethasgreatlychangedJan’slife。Jan的生活極大地被互聯(lián)網改變了。(強調事實)Jan’slifeisgreatlyimprovedbytheInternet.Jan的生活極大地被互聯(lián)網改變了。(強調已完成且對現(xiàn)在有影響)Jan’slifehasbeengreatlyimprovedbytheInternet.Structurehave+V-ed.be+V-ed.have+V-ed.be+V-ed.have+been+V-ed+=現(xiàn)在完成時被動態(tài)

PresentPerfectPassiveVoice：

have+V-ed.be+V-ed.[have+been+V-ed]VerbformActivePassivehave/has+been+v-edHowdoweformthepresentperfectpassivevoice?Fillintheblank.have/has+v-edFormsof

[havebeen+V-ed]Thechildrenhave

alreadybeentoldthegoodnews.Thechildrenhaven’tbeentoldthegoodnewsyet.Havethechildrenalreadybeentoldthegoodnewsyet?Whohasbeentoldthegoodnews.否定句疑問句對thechildren提問1)表過去開始的被動動作一直持續(xù)到現(xiàn)在，常連用的時間狀語有：for+段時間，since+時間狀語(從句)，thesedays,sofar,uptonow,inthelast/pastfewyears等。如：ThisclasshavebeentaughtbyMr.Brownfortwoyears.HisChinesehasbeenimprovedalotsincehecametoChina.Rowling’snovelshavebeentranslatedintomanyforeignlanguagessofar.現(xiàn)在完成時的被動語態(tài)有兩種情況：2)表某被動動作對現(xiàn)在造成的影響或結果，常與already,yet,just,ever,never,recently等連用。如：Thebikehasnotbeenrepairedyet.IhavealreadybeenintroducedtoMr.Smith.

注意：有些動詞沒有被動語態(tài),如不及物動詞happen,takeplace,breakout等。Thestoryhappenedin1990.*Thestorywashappenedin1990.*Thestoryhasbeenhappenedin1990.Changethesentencesintothepresentperfectpassivevoice.(P.30)They’vebuiltakindofnewPCwithmorefunctions.AkindofnewPChasbeenbuiltwithmorefunctions.1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?Hasthebuttonbeenpressedyettocopythefile?Hasa/anycommentbeenmadeabouttheonlinedatabase?thebuildings,destroy,earthquakeThebuildingshavebeendestroyedbytheearthquake.Lookatthepictures,listsomekeywords,thenmakeupsentencesusingthepresentperfectpassivevoice.inourcity,anewbridge,buildAnewbridgehasbeenbuiltinourcity.recently,manytrees,plant,alongtheroadManytreeshavebeenplantedalongtheroadrecently.machinereplacecomputerThemachinehasbeenreplacedbythecomputer.sevenHarryPorterbooks,J.K.Rowling,sofar,writeSevenHarryPorterbookshavebeenwrittenbyJ.K.Rowlingsofar.has;beenupdatedhavebeenvisitedhasnotbeenusedhasbeendonehavebeeninspiredhavebeenpostedhavebeencausedhasbeendeletedTaskIonPage74havebeengivenhasbeenmadehasbeensupportedhasbeenprovidedhavebeentaughthavebeenhelpedhasbeensetupTaskIVonPage74I.單句語法填空1.Computers____________(use)inofficesandhomessince1970s.2.Inmyhometown,thereisalwaysaharvestsupperforthefarmerafterallthewheat______________(cut).8.Someefforts_______________(make)toimprovetheairqualityinthecitylastwinter.12