Unit+3+The+Internet+Discovering+Useful+Structures課件【備課精講精研精析】高中英語人教版（2019）必修第二冊

Unit3TheInternetDiscoveringUsefulStructures現(xiàn)在完成時

have/has+v-ed表示說話時已經(jīng)完成的動作，而且這個動作的結(jié)果對現(xiàn)在仍有影響;表示動作發(fā)生在過去，但一直持續(xù)到現(xiàn)在，并且有可能繼續(xù)持續(xù)下去。Doyouknowthestructuresandmeaningsofthepresentperfecttenseandpassivevoice?ThePresentPerfectTense①Unfinishedeventsthatstartedinthepastcontinuetothepresent.e.g.IhavelivedinChangshaforfiveyears.(IstillliveinChangshanow.)e.g.IhavelivedinChangshasince2015.ReviewThestudentshavecleanedtheclassroom.Theclassroomhasbeencleaned.Youneedn’tcleanitnow.現(xiàn)在完成時activepassive表示說話時已經(jīng)完成的被動性的動作或結(jié)果，主語是動作的承受者?，F(xiàn)在完成時的被動語態(tài)主動語態(tài)變被動語態(tài)的原則“三變”例：Theyarebuildingnineparks.原句主語by的賓語賓語主語

謂語由主動被動“三不變”原句意思不變原句時態(tài)不變原句主謂賓以外成分不變Nineparks_________________bythem.arebeingbuilt時間狀語just;already;ever;never;yet;sofar;bynow不明確的時間一段時間for3days;since3daysago包括說話時間的時間thismorning,thisweek,thismonth,thisyear現(xiàn)在完成時的被動語態(tài)【語法感知】觀察下列課文原句1.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.2.People’sliveshavebeenchangedbyonlinecommunitiesandsocialnetworks.3.Manypeoplehavebeenhelped

bytheclub.4.Jan’slifehasbeengreatlyimproved

bytheInternet.

現(xiàn)在完成時與現(xiàn)在完成時被動語態(tài)的動詞形式找出下面句子的謂語結(jié)構(gòu)，哪些是主動？哪些是被動？Jan’slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.被動主動主動被動

現(xiàn)在完成時謂語結(jié)構(gòu)

主動被動have/hasdonehave/hasbeendone已經(jīng)被例2：HavetheybeensentabroadtostudyEng-lish?他們已經(jīng)被派往國外學英語了嗎?

例3：Whohasbeeninvented?誰受到了邀請？陳述句主語+has/havebeen（not）+P.P.+...例1：Hermotorbikehasbeenstolen.她的摩托車盜了。一般疑問句Has/have+主語+been+P.P.+...?特殊疑問句特殊疑問詞+have/has+been+P.P.+...?一、現(xiàn)在完成時被動語態(tài)的構(gòu)成二、現(xiàn)在完成時的的結(jié)構(gòu)：肯定式：S+have/has+V-過去分詞(done)否定式：S+have/has+not+V-過去分詞...

一般疑問句：Have/Has+S+V-過去分詞...特殊疑問句：疑問詞+have/has+S+V-過去分詞...人教版2019版高一unit3TheInternetgrammar【優(yōu)秀課件】三、現(xiàn)在完成時被動語態(tài)的用法1.現(xiàn)在完成時的被動語態(tài),強調(diào)過去的動作對現(xiàn)在造成的影響或結(jié)果,通常與already,yet,just,never,recently等副詞連用。*ThesongBaby

Shark

hasalreadybeenplayed7.04billiontimesonYouTube.《寶貝鯊魚》這首歌曲已經(jīng)在YouTube上被播放了70.4億次。2.表示一個被動的動作或狀態(tài)開始于過去,持續(xù)到現(xiàn)在,并可能持續(xù)下去,常與for或since引導的時間狀語連用,或用于“Howlong...?”句型中。*Althoughpaidleavehasbeenincludedinthecountry’slaborlawformorethan20years,fewworkerscouldenjoyit.盡管帶薪休假被納入國家勞動法已有20多年,但是落實率并不高。e.g:在你的作業(yè)沒完成(finish)之前你不應(yīng)該離開學校。Youshouldn'tleaveschoolbeforeyourhomeworkhasbeenfinished.人教版2019版高一unit3TheInternetgrammar【優(yōu)秀課件】3.用在時間或條件狀語從句中，表示將來某時已完成的動作，也就是用現(xiàn)在完成時的被動語態(tài)替代將來完成時的被動語態(tài)。注意：下來情況下用被動語態(tài)：1.強調(diào)動作的承受者，即動作的承受者是談話的中心。2.不知道或不必要或為了委婉/禮貌,不便說出動作的發(fā)出者。3.當動作的執(zhí)行者帶有較長的定語。練習Wehavealreadyinvitedthesinger.Thesingerhasalreadybeeninvited.Thesingerhasnotbeeninvitedyet.Hasthesingerbeeninvited?Whohasbeeninvited?被動否定一般疑問對賓語提問

現(xiàn)在完成時的被動語態(tài)與一般過去時的被動語態(tài)的區(qū)別。一般過去時的被動語態(tài)表示的是一個被動的動作發(fā)生在過去某個時候,它的結(jié)果對現(xiàn)在沒有影響;而現(xiàn)在完成時的被動語態(tài),動作或狀態(tài)盡管發(fā)生在過去,但強調(diào)這個動作或狀態(tài)對現(xiàn)在造成的影響和結(jié)果。*Thehousewasbuiltlastyear.這個房子是去年建造的。*Thehousehasbeenbuilt.Wecanmovein.這個房子已經(jīng)建好了。我們可以搬進去。四、現(xiàn)在完成時被動語態(tài)的拓展延申五、幾點注意事項1.只帶有一個賓語的動詞變?yōu)楸粍诱Z態(tài)時,將主動語態(tài)的賓語變?yōu)楸粍诱Z態(tài)的主語。*Asfortheepidemic,ourgovernmenthastakenagreatmanymeasurestocontainit.→Asfortheepidemic,agreatmanymeasureshavebeentakenbyourgovernmenttocontainit.對于這場疫情,政府已經(jīng)采取了很多措施來控制。2.非延續(xù)性動詞如borrow,finish,begin,start,buy,marry,open,join等構(gòu)成的現(xiàn)在完成時的被動語態(tài)不能與表示一段時間的狀語連用。若要表達相應(yīng)的意思,則要改換動詞或時態(tài)。*Theworkwasfinishedtwoweeksago.這項工作在兩周前已經(jīng)完成。3.帶有雙賓語的動詞,如give,send,bring,take,teach,show,tell,buy,lend,promise等,變?yōu)楸粍诱Z態(tài)時,一般將間接賓語變?yōu)楸粍诱Z態(tài)的主語,若將直接賓語變?yōu)楸粍诱Z態(tài)的主語時,間接賓語前面要用相應(yīng)的介詞。*Theirteacherhasgiventhemmanychancestopracticewhattheyhavelearnedinclass.→Manychanceshavebeengiventothemtopracticewhattheyhavelearnedinclass(bytheirteacher).→Theyhavebeengivenmanychancestopracticewhattheyhavelearnedinclass(bytheirteacher).他們的老師給了他們很多機會練習上課所學(的內(nèi)容)。Exercises1.FirstasaPCandthenasalaptop,I______________(use)inoffices

andhomessincethe1970s.2.Overtimemymemory_____________(develop)somuchthat

Inever

forgetanythingI_____________

(told).3.Sincethe1970smanynewapplications______________(find)forme.4.Ihavealso________(put)intorobotsandusedtomakemobilephones

aswellas______(help)withmedicaloperations.hasdevelopedhavebeentoldhavebeenusedhavebeenfoundbeenputhelpedⅠ.單句語法填空1.WearegladtobetoldthatLiTao________________(admit)toFudanUniversity.

2.Allthepreparationsforthetask__________________(complete),andwe’rereadytostart.

3.Whenandwheretogofortheon-salaryholiday___________________(decide)yet.

4.Thisbook_________________(translate)intomanylanguages.

5.Thedictionaryisoutofdate:manywords_______________(add)tothelanguagesinceitwaspublished.

hasbeenadmittedhavebeencompletedhasnotbeen

decided

hasbeentranslatedhavebeenadded6.Bynow516ConfuciusInstitutes_________________(found)in142countriesandregions.

7.As_______________(plan),wewillgatherandsetoff/outattheschoolgateat8:00,December10.

8.Recently,forvariousreasons,ourlivingenvironment________________(pollute)worseandworse.

9.Therearemanygoodqualitiesthat_______________(pass)onfromgenerationtogenerationinmyfamily.

10.Measures______________(take)tocopewiththeseproblemsbythegovernmentuptonow.

havebeenfoundedhasbeenplannedhasbeenpollutedhavebeenpassedhavebeentakenⅡ.語法填空(用所給詞的正確時態(tài)、語態(tài)填空)LiMing：Hi，LinTao.Hownicetoseeyouonthefirstdayofthenewterm!LinTao：Yes.Nicetoseeyouagain.LiMing：Iknowthatyourparents6.

(work)inYushuforyears.Canyoutellmesomethingthereaftertheearthquake?LinTao：Ofcourse.Sincetheearthquake7.

(happen)，manysoldiers8.

(send)there，andmanykindsofsupplies(物資供應(yīng))9.

(carry)therefromalloverthecountry.Now，mostpeoplethere10.

(live)ahappylifeagain.havebeenworkinghappenedhavebeensenthavebeencarriedlive/arelivingTask3語篇總結(jié)歸納:主題深化

JanTchamani,anEnglishteacherinBirmingham,UK,suddenlydevelopedaseriousillness.Shefoundherselfoutofworkand1._____(stick)athome.Afterawhile,shediscoveredthat2._______(surf)theInternetcouldhelpherfeellesslonelyandbored.Shecoulddoeverythingonline.Shealsojoined3.___onlinegroupwhereshecouldtalkaboutherproblemsandgetsupportandadvic