UNIT3THEINTERNETGRAMMAR课件人教版高中英语必修第二册

Unit3THEINTERNETGrammar:ThePresentPerfectPassiveVoiceIhaveoftentakenpicturesofthelittlegirlsinceImetherTheyhaverunmanytimessincetheyenterhighschool.1.WehaveseenthemovieFastandFurious8already.2.ShehaslearnedEnglishsinceshewasfive.3.TherearecountlessarticlestellingushowtheInternethasmadeourlivesmoreconvenient.4.ButtheInternethasdonemuchmoreforpeoplethansimplymakelifemoreconvenient.5.Hercompanyhasbecomequitesuccessful.6.JanhasstartedtakingonlineclassestolearnmoreabouthowtousetheInternettomakesocietybetter.现在完成时现在完成时定义结构句型1表示

开始，一直持续到

的动作。

过去现在现在完成时概念1：for:后接一段时间，如threeyears,alongtime…e.g.Ihaveknownyouforalongtime.since:自从…后接过去的时间点/动作e.g.Ihavenotseenhimsincewemetlastweek.AB常用的时间状语有：I_____________English____________________.2.我已经学了10多年的英语。havelearnedfor

overtenyears1.我认识李雷三年了.I’veknownLiLei_______________.______________________.for

threeyearssince

threeyearsagoPractice:Finishthesentences2表示

发生的或

的动作对

造成的

。Pastpresent过去已完成现在影响或结果e.g.1.I

havejustopened

thedoor.

(Thedoorisnotclosednow.）

现在完成时概念2：常用的时间状语有：◆常与不确定的时间状语连用，如:thesedays,uptonow,bynow,lately,already,never,ever,just,yet,before,recently,sofar,inthepastfewyears等,表示“到目前为止”所发生的动作.e.g.

1）JaneandMike

have

read

HarryPottermanytimes.

2）Mikehasbeen

toDisneylandtwice.

发生过若干次3.现在完成时用于谈论

的事情.现在完成时概念3：never,twice,threetimes,manytimes等常用的时间状语有：现在完成时谓语动词的构成

1have/has和以前一样选择：当主语是____________

用has,

用have第三人称单数其他人称2done在现在完成时中叫

，原型是do/does。过去分词have/has+done现在完成时的基本句型现在完成时(ActiveVoice)肯定式have/hasdone否定式have/hasnotdone一般疑问句have/has+主+done？特殊疑问句疑问词-have/has+主+done？句型转换。1.Ihavewaitedherefortwohours.2.Shehasn’ttoldusthenewsyet.3.Hastherainalreadystopped?4.Shehasdoneherhomework.5.HehaslivedinShangHaisinceheleftBeijing.动词填空：

1._____you________(clean)theroom?Yes,we__________(do)thatalready.When_______you______(do)it?We_______(do)itanhourago.2.______he______(see)thisfilmyet?Yes.When_____he_____(see)it?He______itlastweek.3.Howmanytimes_____you______(be)there?

HavecleanedhavedonediddodidHasseendidseesawhavebeen下一页上一页主菜单4.I__________(read)thenoveltwice.It’sinteresting.5.She_________(go)toParis,hasn’tshe?Yes.How______she_______(go)there?She_______(go)therebyair.6.Sofar,manycountries_______________(develop)theirsoftwareprograms.7.MrChen______(give)upsmokinglastyear.8.MrChen__________(give)upsmokingsincelastyear.havereadhasgonedidgowenthavedevelopedgavehasgiven下一页上一页主菜单15TranslatethemintoEnglish.1.你以前做过风筝吗?2.我从来没有见过这么奇怪的人．3.到现在你学了多少英语单词?4.这部电影他已经看过5遍了.5.最近有没有读一些有趣的书?6.自从她搬到上海以后,我就没见过她.Haveyoumadeakitebefore?I’veneverseensuchastrangeman.HowmanyEnglishwordshaveyoulearnedsofar?Hehasalreadyseenthisfilm5times.Haveyoureadanyinterestingbooksrecently?Ihaven’tmethersinceshemovedtoShanghai.

被动语态构成：be＋及物动词的过去分词。用法：(1)动作的执行者不知道是谁或难以说明时常用被动语态，

(2)当强调动作的承受者时,用被动语态,如:Streetlightsareoftenturnedonatsixinwinter.Thiskindofbicycleisnotsoldinourshop现在完成时+被动语态=？Discovering现在完成时(PassiveVoice)肯定式have/hasbeen

done否定式have/hasnotbeendone一般疑问句have/has+主语+been

done特殊疑问句特殊疑问词+have/has+主语+been

doneHehasconfirmedtheupdatednews.Passivevoice:Theupdatednewshasbeenconfirmedbyhim.Theupdatednewshasnotbeenconfirmedbyhim.Hastheupdatednewsbeenconfirmedbyhim?Whathasbeenconfirmedbyhim?主动态被动态一般现在时一般过去时一般将来时现在进行时过去进行时现在完成时过去完成时时态语态do/doesam/is/are+done

didwas/were+doneshall/willdoshall/will+bedoneam/is/aredoingam/is/are+beingdonewas/weredoingwas/were+beingdonehas/havedonehas/have+beendonehaddonehad+beendone①ThefirstsubwaytocrosstheYangtzeRiver.第一条横穿长江的地铁已经开工。(肯定式)②Whenandwheretospendourholidayyet.我们还没决定何时去何地度假。(否定式)③theconstructionoftheunderwatertunnel?水下隧道的建造完工了吗?(一般疑问式)④partsofGansuProvincebystrongwindsandheavysnowfallinthepasttwodays?在过去的两天里,甘肃省的什么地方受到了大风和大雪侵袭?(特殊疑问式)hasbeenstartedhasn’tbeendecidedHasbeenfinishedWhathavebeenhit[实战演练]Ⅰ.单句填空1.Whenyougetthepapersback,payspecialattentiontowhat

(mark).

2.Inrecentyearsmanysportsclubs

(run)tomakeaprofit.

3.IwanttobuythiskindofclothbecauseI

(tell)thattheclothwasheswell.

4.Overthepasttenyears,thistown

(hit)twicebyearthquakes.

hasbeenmarkedhavebeenrunhavebeentoldhasbeenhit5.Alotofdamage

(cause)byasnowstormwhichhitthenorthofthecountrylastnight.

6.Ilikethesesongsverymuchwhich

(teach)recentlyontheradio.

7.Whenandwhereourprofessorwillgiveusalecture________________________(notdecide)yet.

8.Greatchanges

(take)placeinmyhometownsince2016.

hasbeencaused

havebeenta