高中英语Unit3Computers2LearningaboutLanguage新人教版必修2课件

SectionⅡ—LearningaboutLanguage一二三四一、用所给动词的适当形式填空1.They

(tell)aboutitmanytimesandIbelievetheywillpayattentiontoit.

2.Greatchanges

(take)placeinthecityinthepastthreeyears.

3.Mysisterisworkingatthepowerstationthat

(use)forjustoneyear.

4.Tillnow,threefilms

(show)inthatsmallvillagethismonth.

5.Nobooks

(buy)sincelastweek.

havebeentoldhavetakenhasbeenusedhavebeenshownhavebeenbought一二三四二、读下列句子,选出含有被动语态的句子1.Theboyhaslostthekeytotheclassroom.2.Lotsofquestionshavebeenaskedbythestudentsaroundme.3.ThisisthefirsttimeIhaveriddenahorse.4.IhavestudiedEnglishforabouttenyears.5.Hishomeworkhasbeendone.6.Anewlibraryhasbeenbuiltinourschool.7.I’veneverheardofanythingaboutit.8.Hiscomputerhasbeenrepairedbytheyoungwoman.含有被动语态的句子:

归纳:现在完成时的被动语态的构成为:

+

+

。

2,5,6,8have/hasbeen及物动词的过去分词

一二三四三、读下列句子,试着把可以变为被动语态的句子改为被动语态例句:Wehaveusedthecomputerfortwoyears.→Thecomputerhasbeenused(byus)fortwoyears.1.Howmanywordshaveyoulearned?2.Theyhavealreadygotup.3.HehastranslatedthosebooksintoChinese.4.Thisbuildingbelongstoourcompany.5.Shehasboughtsomeflowersforhermother.答案:Howmanywordshavebeenlearned(byyou)?答案:不能变为被动语态。

答案:ThosebookshavebeentranslatedintoChinesebyhim.答案:不能变为被动语态。

答案:Someflowershavebeenboughtbyherforhermother.一二三四6.Weshouldpayattentiontoourspellingandgrammar.7.Canyoumeetourneed?8.Areyoufreethedayaftertomorrow?答案:Attentionshouldbepaidtoourspellingandgrammar.答案:Canourneedbemetbyyou?答案:不能变为被动语态。

一二三四四、欣赏下面的笑话,画出含有被动语态的句子A:Granny,mayIaskifyouhavestrongteeth?B:Strong

teeth?Allmyteethhavebeenpulledoutbyabaddentist(牙医).A:Good.Keepthesenutsforme,will

you?I’llplayfootballforhalfanhour.OfcourseIdon’tmindifthenutsareeatenup.答案:A:Granny,mayIaskifyouhavestrongteeth?B:Strong

teeth?Allmyteethhavebeenpulledoutbyabaddentist(牙医).

A:Good.Keepthesenutsforme,will

you?I’llplayfootballforhalfanhour.OfcourseIdon’tmindifthenutsareeatenup.

121.By

the

time

I

was

sixteen,my

dream

had

come

true.到我十六岁时,我的梦想成为现实。剖析本句的时间状语从句为一般过去时,主句为过去完成时态。又如:BytheendoflastyearHenryhadcollectedmorethanathousandforeignstamps.到去年年底,亨利已经收集了一千多张外国邮票。归纳:当by

the

time后接一般过去时的句子时,其主句应用过去完成时态。12当by

the

time后接一般现在时的句子时,其主句用将来完成时态。如:By

the

time

you

return,we

will

have

started

the

work.到你回来时,我们将已经开始这项工作了。考点cometrue实现,成为现实HisdreamofbeingadmittedtoOxfordUniversityisdifficulttocome

true.他被牛津大学录取的梦想很难实现。12come

true和realize的区别:I

believe

your

dream

will

be

realized.=I

believe

your

dream

will

come

true.=I

believe

your

dream

will

become

a

reality.我相信你的梦想会实现。归纳:come

true作为“实现”讲,是不及物动词短语,不能用于被动结构。realize作为“实现”讲时,是及物动词,后接宾语,可用于被动结构。表示“成为现实”,也可以用become

a

reality来表达。12活学活用语法填空1)He

(graduate)fromtheuniversitybythetimehisfathercamebackfromabroad.

2)Bythetimeyouwakeuptomorrowmorning,we

(arrive)intheUSA.

hadgraduatedwillhavearrived单句改错3)Bythetimewegotthere,thebusleft.4)Doyouthinkhisdreamwillbecometrue?答案:bus后加had

答案:去掉be122.Grammar:现在完成时的被动语态考点一现在完成时的被动语态的定义和构成现在完成时的被动语态同主动语态一样强调过去的动作对现在的影响。现在完成时的被动语态由“has/have+been+及物动词的过去分词”构成。注意各种句式变化。下面以动词teach为例,列表说明现在完成时的被动语态的句式变化:1212考点二现在完成时的被动语态的注意事项1)只带有一个宾语的动词变为被动语态时,将主动语态的宾语变为被动语态的主语。主动:Wehavebuiltmany

housesinthepasttenyears.被动:Manyhouseshavebeenbuiltinthepasttenyears.

2)带有双宾语的动词,如

give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,ask,pay,borrow,lend,offer,hand,pass,get,promise等,变为被动语态时,可将其中一个宾语变为主语,另一个保留在原处。主动:Ihavegivenhimthebook.被动:Hehasbeengiventhebook.被动:Thebookhasbeengiventohim.

注意:带有双宾语的动词在由主动语态变为被动语态时,一般把表示“人”的宾语(间接宾语)变为主语。123)带有复合宾语(宾语+宾语补足语)的动词变为被动语态时,只能将宾语变为主语,原来的宾语补足语仍留在原处,改称为主语补足语。原来为省略to的不定式做宾语补足语的,被动语态中要用带to的不定式。主动:Ihaveaskedhimtohelpyou.被动:He

hasbeenaskedtohelpyou.

主动:Ihavemadehimworkhard.被动:Hehasbeenmadetoworkhard.

124)短语动词变为被动语态时,要注意保持其完整性,动词后面原有的介词或副词切不可遗漏。主动:Hehasreferredtothebook.被动:Thebookhasbeenreferredto(byhim).主动:Hehasthoughtofawayofdoingit.被动:Awayofdoingithasbeenthoughtof.5)由主动语态变为被动语态时要注意主谓一致。主动:Hehaswrittenthreenovels.被动:Threenovelshavebeenwritten(byhim).

12考点三现在完成时的被动语态的高考考点

1212121212活学活用语法填空1)(2015·重庆高考改编)Inmyhometown,thereisalwaysaharvestsupperforthefarmersafterallthewheat

(cut).

2)(2015·天津高考改编)Despitethepreviousroundsoftalks,noagreement

(reach)sofarbythetwosides.

3)(2015·福建高考改编)Thebattlelastslittlemorethanhalfanhour,inwhichtimearound50,000kilogramsoftomatoes

(throw)atanyoneoranythingthatmoves,runs,orfightsback.

4)(2015·浙江高考改编)Inmostcitiestheskylooksasthoughit

(empty)ofstars,leavingbehindavacanthazethatmirrorsourfearofthedark.

hasbeencuthasbeenreachedhavebeenthrownhasbeenemptied125)EveryyearafloodoffarmersarriveinShenzhenforthemoneymakingjobsthey

(promise)beforeleavingtheirhometowns.

6)Morethanonemeans

(take)sinceTomlearnedthenewlanguage,buthestilldoesn’tperformwell.

7)Thefieldswherecropsusedtobegrown

(use)forbuildingsnow.

8)Thenewdictionariesareveryuseful.They

(sell)welland

(sellout)already.

9)Computers

(use)inofficesandhomessince1970s.

10)—Whatisthepriceofpetrolthesedays?—Oh,it

(rise)slightlysincelastmonth.

havebeen