Unit3TheInternetDiscoveringUsefulStructures現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)課件高中英語(yǔ)人教版

Discoveringusefulstructures---presentperfectpassivevoice主語(yǔ)

+

have/has

+V-過(guò)去分詞(done)助動(dòng)詞,無(wú)意義

一、現(xiàn)在完成時(shí)的結(jié)構(gòu)Winter

has

already

come

.冬天已經(jīng)來(lái)臨。present(now)現(xiàn)在future未來(lái)past過(guò)去過(guò)去的動(dòng)作一直持續(xù)到現(xiàn)在（動(dòng)作未完成）過(guò)去的動(dòng)作對(duì)現(xiàn)在產(chǎn)生影響（動(dòng)作已完成）ThePresentPerfectTense現(xiàn)在完成時(shí)態(tài)二、現(xiàn)在完成時(shí)的用法(1)表示到現(xiàn)在為止已經(jīng)完成或剛剛完成的動(dòng)作。Eg：①Nowwehaveplantedallthetrees.

現(xiàn)在我們已經(jīng)種下了所有的樹(shù)。②

Hehasjustcomeback.

他剛剛回來(lái)。③

Theyhavebuiltmanybuildingsinthiscity.

他們?cè)谶@個(gè)城市建造了許多建筑。Someonehasbrokenthewindow.

(窗戶(hù)現(xiàn)在是壞的)Ihavealreadylostthekey.

(我現(xiàn)在沒(méi)有鑰匙)Ihaven’treadthatbookyet.

(不了解書(shū)的內(nèi)容)Ihavejustcleanedmyhands.

(手是干凈的)二、現(xiàn)在完成時(shí)的用法(2)表示過(guò)去發(fā)生的動(dòng)作,強(qiáng)調(diào)結(jié)果或?qū)ΜF(xiàn)在的影響。常與already,yet

(到現(xiàn)在還沒(méi)有),just

(剛剛),

ever等詞連用.already:常用于肯定句中

yet:常用于否定句,疑問(wèn)句尾常與現(xiàn)在完成時(shí)連用的時(shí)間狀語(yǔ)有：already

已經(jīng)

yet

已經(jīng)recently/lately

最近

sincethen

從那時(shí)起eversince

自那以來(lái)

ever

曾經(jīng)sofar/uptillnow

迄今為止

bynow

到現(xiàn)在為止foralongtime

很長(zhǎng)一段時(shí)間inrecentyears

在最近幾年里in/during/overthepast/lastyears

在過(guò)去的幾年里ShehaslearnedEnglishfor5years.她學(xué)英語(yǔ)有五年了。HehaslivedinBeijingsince

（自從）5yearsago.他五年前就住在北京了。二、現(xiàn)在完成時(shí)的用法(3)表示從過(guò)去開(kāi)始并持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，常與包括現(xiàn)在在內(nèi)的一段時(shí)間的狀語(yǔ)連用。for＋時(shí)間段（一段時(shí)間）觀察下列句子，找出它們的共同之處。MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.People’sliveshavebeenchangedbyonlinecommunitiesandsocialnetworks.Manypeoplehavebeenhelpedbytheclub.Jan’slifehasbeengreatlychangedbytheInternet.Howhasourlifebeenchanged?Canwerewritethesentencelikethis?我們能將句子這樣進(jìn)行改寫(xiě)嗎？Perceiving&understanding理解與感知Canwerewritethesentencelikethis?MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.很多關(guān)于萬(wàn)維網(wǎng)奇妙之處的（文章）已經(jīng)被寫(xiě)了下來(lái)。人們已經(jīng)寫(xiě)了很多關(guān)于萬(wàn)維網(wǎng)奇妙之處的文章。Moreexamples…讓我們觀察更多例句~Perceiving&understanding理解與感知Observetheredwordsandthink.1.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.2.People’sliveshavebeenchangedbyonlinecommunities.3.Manypeoplehavebeenhelpedbytheclub.4.Jan’slifehasbeengreatlychangedbytheInternet.1.PeoplehavewrittenmuchaboutthewondersofWorldWideWeb.2.Onlinecommunitieshavechangedpeople’slives.3.Theclubhashelpedmanypeople.4.TheInternethaschangedJan’slife.三、現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)1.現(xiàn)在完成時(shí)的結(jié)構(gòu):主語(yǔ)+have/has+

V-過(guò)去分詞（done）2.現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)結(jié)構(gòu)就是：主語(yǔ)

+

have/has

+

been

+

V-過(guò)去分詞Actually,newchangeshavetakenplaceinourschoolandcounty.Newteachingbuildingshavebeenbuiltinourschool.Agym

hasbeenbuiltinourschool.Thetrack

andfieldhasbeenbuiltinourschool.Anewroad

hasbeenbuilt

nearourschool.Arailwaystationhasbeenbuiltinourcounty（縣）.Let’sobservethesentencestogether.1.Newteachingbuildingshavebeenbuiltinourschool.2.Agymhasbeenbuiltinourschool.3.Thetrackandfieldhasbeenbuiltinourschool.4.Anewroadhasbeenbuiltnearourschool.5.Arailwaystationhasbeenbuiltinourcounty（縣）.現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)的定義：同現(xiàn)在完成時(shí)一樣:表示動(dòng)作在說(shuō)話(huà)之前已經(jīng)完成，強(qiáng)調(diào)過(guò)去的動(dòng)作對(duì)現(xiàn)在造成的影響或產(chǎn)生的結(jié)果。被動(dòng)語(yǔ)態(tài):“be+過(guò)去分詞”表示“被動(dòng)”肯定式：主語(yǔ)+

have/has+

been

+

done(V-過(guò)去分詞)否定式：主語(yǔ)+

have/has+

not

+

been

+

done...

一般疑問(wèn)句：Have/Has

+主語(yǔ)+

been

+

done...？特殊疑問(wèn)句：疑問(wèn)詞+

have/has

+主語(yǔ)+

been

+

done...？現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)Manystudentshave

alreadybeenaffectedbythevirus.許多學(xué)生已經(jīng)受到病毒的影響Havemanystudentsbeen

affectedbythevirusyet?Who

havebeenaffectedbythevirusyet?①否定句：Manystudentshave

notbeenaffectedbythevirusyet.②一般疑問(wèn)句：③特殊疑問(wèn)句（對(duì)劃線(xiàn)部分提問(wèn)）：1.Papermoney____________(use)foroverathousandyears.

2.—_____theletter__________(give)toMr.

Black?—No.It’sstillonthedesk.3.Greatchanges_________

__(takeplace)inmyhometownandalotoffactories____________(set)up.hasbeenusedHasbeengivenhavetakenplacehavebeensetCompletethesentences.takeplace是不及物動(dòng)詞短語(yǔ)，沒(méi)有被動(dòng)形式。

Completethesentences.4.Overthepastfouryears,morethan$10million________________(spend)carryingouttheproject.5.Manybuildingsinthiscity__________________(not,build)yet.6.IliketheseEnglishsongsandthey______________(teach)manytimesontheradio.7.Allthepreparationsforthetask__________________(complete),andwe’rereadytostart.8.Nowallthetrees______________(plant)bystudents.havebeentaughthavebeencompletedhavenotbeenbuilthavebeenspenthavebeenplantedHaveatry(Bookp.30(2))Changethesentencesintothepresentperfectpassivevoice.ExampleTheyhavebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemade