Unit4 Adversity and Courage Discovering Useful Structures課件-【知識精研】人教版英語選擇性必修第三冊

DiscoverUsefulStructures

Unit4AdversityandCourage現(xiàn)在完成進行時結(jié)構(gòu)

常用的時間狀語12現(xiàn)在完成進行時VS.現(xiàn)在完成時34用法Observeanddiscover：1.ThisistheadventurethatIhavebeendreamingof.2.Wearenowcampedonthericeandwehavebeenmanagingtosurvive...3.Thedoghasbeenbarkingforabouttwohours.Ireallyhopeitwillstopsoon.1.觀察以上例句，歸納出現(xiàn)在完成進行時的結(jié)構(gòu)：

。2.寫出現(xiàn)在完成進行時的不同句型：

肯定句否定句一般疑問句特殊疑問句have/has+been+doing

主語+have/hasbeen+doing...

主語+have/hasnotbeen+doing...Have/Has+主語+been+doing...?疑問詞+have/has+主語+been+doing...?一、現(xiàn)在完成進行時的結(jié)構(gòu)IhavebeenlearningEnglishsinceIwas8yearsoldandIstillloveit.learn

8yearsagofuturenow

1.

過去動作持續(xù)到現(xiàn)在，還將持續(xù)下去。二、現(xiàn)在完成進行時的用法learnlearnGosh,isanybodyinit?Ihavebeenknockingatthedoorforhalfanhour!Gosh,isanybodyinit?Ihavebeenknockingatthedoorforhalfanhour!pastfuturenowknockknockknock2.

表示動作從過去到現(xiàn)在的時間內(nèi)重復(fù)發(fā)生但有可能間斷。1.---IamsorryIhavekeptyouwaitingsolong.---Itisallright.Ihavebeenreadingthenewspapers.2.Wehavebeenwaitingforyouforhalfanhour.

3.

表示說話之前剛剛結(jié)束的動作，并且動作不再繼續(xù)。二、現(xiàn)在完成進行時的用法pastnowwaitingstartedarrivefutureOh,youhavecomeatlast!Ihavebeenwaitingforyoufortwohours.Hereyouare!Sorry.I'mlate.Oh,youhavecomeatlast!Ihavebeenwaitingforyoufortwohours.Hereyouare!Sorry.i'mlate.pastfuturenowwait4.表示某種強烈的感情色彩,如：贊賞、不滿、批評、憤怒等。Look&discover:①Aprivatedetectivehasbeentailing(跟蹤)himforseveralweeks.②Tomlovesoutdooractivities-hehasbeenfishingandhunting

sincehewasachild.三、常用的時間狀語現(xiàn)在完成進行時常與以下表示

“持續(xù)”

的時間狀語連用：for+時間段,since+過去時間/句子（時態(tài)用過去時）

（與since或for連用時，動作常會繼續(xù)下去）

thisweek,thismonth,thesedays...allday,allthemorning,allthetime,allthisweek...recently,lately,uptonow,tillnow,sofar,during...over/inthepast/lastfewyears,fromthestart...Theboy__________________(eat)sincefiveminutesago.

hasbeeneating(1)Theboystartedeatingfiveminutesago.(2)Heisstilleatingnow.Practice完成課本P41②1.Thedogstartedtobarkabouttwohoursago.Ireallyhopeitwillstopsoon.

Thedoghasbeenbarkingforabouttwohours.Ireallyhopeitwillstopsoon.2.Stevestartedtoplayrugbyattheageofeight.Nowhehasbecomeaprofessionalplayer.

Stevehasbeenplayingrugbysinceeightyearsold.Nowhehasbecomeaprofessionalplayer.Readeachsituationandrewriteeachsentenceusingthepresentperfectcontinuoustense.（課本P41②）3.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredafterplayingtabletennisfortwohours.4.Dianehasn’tgotmuchsleepthisweek.Shelooksterribletoday.5.Itriedtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Hehasbeenplayingtennisfortwohoursandlooksalittletired.Dianehasn’tbeensleepingwellthisweek.Shelooksterribletoday.

Ihavebeentryingtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere..四、現(xiàn)在完成進行時VS.現(xiàn)在完成時【相同點】1.動作都發(fā)生在過去；2.都與一段時間連用。Ihavebeenteachingfortwoyears.Ihavetaughtfortwoyears.Differences現(xiàn)在完成時VS.現(xiàn)在完成進行時

pastfuturenowdiddohavedone

pastfuturenowdiddohavebeendoingdo現(xiàn)在完成時現(xiàn)在完成進行時Compareandfind現(xiàn)在完成時VS.現(xiàn)在完成進行時Hehaswrittenanovel,whichisbeingpreparedtocomeoutnow.Hehasbeenwritinganovel,whichwillbefinishednextmonth.時態(tài)

現(xiàn)在完成時強調(diào)完成和結(jié)果/影響現(xiàn)在完成進行時強調(diào)未完成和動作Compareandfind現(xiàn)在完成時VS.現(xiàn)在完成進行時Juliahasgonetothelibrary.Juliahasbeengoingtothelibraryforayear.時態(tài)

現(xiàn)在完成時強調(diào)完成和結(jié)果/影響經(jīng)常表單個事件現(xiàn)在完成進行時強調(diào)未完成和動作可表重復(fù)事件Compareandfind現(xiàn)在完成時VS.現(xiàn)在完成進行時Therepairmanhasrepairedyourcar,andyoucanhaveitnow.Therepairmanhasbeenrepairingthecaralltheafternoon.時態(tài)

現(xiàn)在完成時強調(diào)完成和結(jié)果/影響經(jīng)常表單個事件通常只陳述事實現(xiàn)在完成進行時強調(diào)未完成和動作可表重復(fù)事件含感情色彩Compareandfind現(xiàn)在完成時VS.現(xiàn)在完成進行時Ihavevisitedmyhometownrecently,whosechangeshaveleftadeepimpressiononme.Ihavebeenvisitingmyhometownrecently,anditimpressesmedifferentlyeachtime.時態(tài)

表重復(fù)時現(xiàn)在完成時強調(diào)完成和結(jié)果/影響經(jīng)常表單個事件通常只陳述事實強調(diào)成果，講次數(shù)現(xiàn)在完成進行時強調(diào)未完成和動作可表重復(fù)事件含感情色彩強調(diào)持續(xù)，不講次數(shù)

1.Forthewholemorning,theboardofdirectors______________________(discuss)theresolutiontoincreasewagesinthecomingyear.2.Jason’sonlyrecreationispainting.He___________________(learn)howtopaintforoverfiveyears.3.Eventhoughwelostthegames,weshouldbeproudofourselvesbecausewe_______________(try)ourbestand__________(work)asateam.4.Hefinally______________(finish)theresearchpaperunderhistutor’sguidance.5.MynephewSam____________________(collect)comicbookssincehewasfive.Nowhehasmorethantwohundredofthem.6.Thecompany_______________________________(launch)anadvertisingcampaigntopromoteitscorporateimage.ha