Unit3TheInternetDiscoveringUsefulStructures課件-高中英語人教版2

Unit3DiscoveringUsefulStructuresTalkaboutsomethingthathasbeendoneIhavefinishedmyhomework.Myhomeworkhasbeenfinished.Thepresentperfectpassivevoice現(xiàn)在完成時的被動語態(tài)語法感知1.TherearecountlessarticlestellingushowtheInternethasmadeourlivesmoreconvenient.2.ButtheInternethasdonemuchmoreforpeoplethansimplymakelfiemoreconvenient.3.MuchhasbeenwriteenaboutthewondersoftheWorldWideWeb.4.People'sliveshavebeenchangedbyonlinecommunitiesandsocialnetworks.此兩句中的時態(tài)是：現(xiàn)在完成時態(tài)此兩句中的時態(tài)是：現(xiàn)在完成時的被動語態(tài)Readthepairsofsentences.Analyseandcomparethedifferentverbforms.Howdoweformthepresentperfectpassivevoice?Fillintheblank.VerbformActive（主動）have/has+donePassive（被動）____________________have/has+been+doneAllpossibleanswershavebeenconsidered!Myquestionhasnotbeenanswered.Hashisbikebeenrepaired?Why

hashebeenpraisedbyhisteacher?句型結構：現(xiàn)在完成時被動語態(tài)常用結構肯定式否定式一般疑問式特殊疑問式主+________________________________主+______________________________________________________________________________________________________have/has+been+donehave/has+not+been+doneHave/Has+主語+been+done…?疑問詞

+have/has+主語+been+done…?

陳述句：Theauthor’snewstoryhasbeenpublished.否定句：Theauthor’snewstoryhasnotbeenpublished.

一般疑問句：Hastheauthor'snewstorybeenpublished?

特殊疑問句：Whenhastheautohr'snewstorybeenpublished?結構Theletter

(post)already.hasbeenpostedManyhouses

(build)forthepoorsofar.havebeenbuilt用法1:被動動作發(fā)生在過去,已經完成,對現(xiàn)在造成影響

或產生結果。(already,yet,sofar,bynow等)現(xiàn)在完成時的被動語態(tài)含義用法present(now)futurepast

PresentPerfectTense

現(xiàn)在完成時圖解現(xiàn)在完成時態(tài)Themachine

(repair)fortwohoursbutitstilldoesn’twork.hasbeenrepairedPapermoney

(use)forover50years.hasbeenused用法2:被動動作發(fā)生在過去,持續(xù)到現(xiàn)在。(for+一段時間;since)含義用法

常與現(xiàn)在完成時連用的時間標志詞

already

已經(肯定句)

foralongtime

很長一段時間recently/lately

最近

sofar

迄今為止by/upto/untilnow

到現(xiàn)在為止

inrecentyears

在最近幾年里

since...

從...起

eversince

自那以來in/during/overthepast/lastyears在過去的幾年里Tensemarkers時態(tài)標志詞1.Themachinehasbeenrepairedalready.(repair)2.Themachineisbeingrepairednow.

3.Themachinewasrepairedyesterday.說明動作發(fā)生在過去,對現(xiàn)在有影響,“現(xiàn)在修好了”說明動作正在進行只說明動作發(fā)生在過去，對現(xiàn)在無影響4.Thebabyhasbeentakengoodcareof.4.Thebabyhasbeentakengoodcare.Attention:在被動結構中,動詞短語的介詞或副詞不可去掉5.Greatchangeshavebeentakenplacesince1978.5.Greatchangeshavetakenplacesince1978.Attention:不及物動詞或詞組無被動難點突破hasbeensentwasbuilthavebeenbought鞏固練習Summary課堂小結現(xiàn)在完成時的被動語態(tài)含義結構①表示過去發(fā)生的被動動作現(xiàn)在已經完成,強調對現(xiàn)在的影響；②被動動作發(fā)生在過去,持續(xù)到現(xiàn)在。have/hasbeendone形式肯定式否定式疑問式have/hasbeendonehave/hasnotbeendoneHave/Has+主語+beendone?特殊疑問詞+have/has+主語+beendone?注意事項區(qū)分現(xiàn)在完成時/一般過去時的被動不及物動詞或詞組無被動Changethesentencesintothepresentperfectpassivevoice.譯:把句子轉換成現(xiàn)在完成時的被動語態(tài)

They’vebuiltakindofnewPCwithmorefunctions.AkindofnewPChasbeenbuiltwithmorefunctions.↓PracticeIhavedownloadedthesoftwaretohelpmyphonebatterylastlonger.Someonehaslostanidentitycard.Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HaveyouconfirmedtheWi-Fipassword?HastheWi-Fipasswordbeenconfirmed?II.當堂檢測

Greatchanges1.__________(take)placeinmyhometowninthepastfewdecades.

Thepublicfacilities(設施)2._________________(improve)sofar.Many

3.______(road)havebeenwiden.Besides,

Moreattentionhasbeengiventothe4._____________(environment)protection,somanytreesandflowers5._______________(plant)now.Thewaterintheriversaswellastheair6.___________(become)cleanagain.7._____manypeoplesay,

8.___

seemsthatwearenowlivingina“bigpark”.9._________,thingscangetbadifwedon’tappreciate10.______wehavenow.havetakenhavebeenimpro