Unit4AdversityandCourageDiscoverUsefulStructures課件-高二英語人教版選擇性

Unit4Period2DiscoverUsefulStructures1.能理解現(xiàn)在完成進(jìn)行時的功能和意義；2.能學(xué)會在真實(shí)場景中靈活運(yùn)用現(xiàn)在完成進(jìn)行時。新課導(dǎo)入1.Istartedtowatchingthemovieonehoursago.（過去發(fā)生的動作）2.Iamstillwatchingthemovienowanditisstillshowing.（一直持續(xù)到現(xiàn)在）Ihavebeenwatchingthemovie.Presentperfectcontinuoustense（現(xiàn)在完成進(jìn)行時態(tài)）Structure:have/has+beendoingsth.1.現(xiàn)在完成進(jìn)行時表示過去開始到現(xiàn)在（沒有停止）且還將_______的動作，一般翻譯成:_______________。

持續(xù)一直做某事Istartedtowatchthefilm.pastnowfutureDefinitionIamstillwatching課堂學(xué)習(xí)EXAMPLEThisistheadventurethatIhavebeendreamingof.__________________________________________________________________________________________________________________________________________________________________Lookatthesentenceinthepresentperfectcontinuoustense.Findmoreexamplesfromtheprevioustext.1Wearenowcampedontheiceandwehavebeenmanagingtosurvive,…Wehavebeenstrugglingfordays,but…Let’sdiscussthefunctionofthetense.肯定句：主語+have/has+been+現(xiàn)在分詞...e.g.I'vebeentryingtofindouthertelephonenumber.否定句：主語+have/has+not+been+現(xiàn)在分詞...e.g.I'venotbeenfeelingverywellforthepastfewdays.一般疑問句：Have/Has+主語+been+現(xiàn)在分詞...Yes,主語+have/has（been+現(xiàn)在分詞...）.No,主語+have/has+not（been+現(xiàn)在分詞...）.特殊疑問句：疑問代詞/疑問副詞+have/has+主語+been+現(xiàn)在分詞...Sentencepattern一、表示動作從過去某一時間開始，一直持續(xù)到現(xiàn)在，或者始于過去，現(xiàn)在剛剛終止，但注重的是結(jié)果。e.g.Youhavebeensayingthatforfiveyears.I’mfedupwithit.e.g.Tom’shandsareverydirty.Hehasbeenrepairingthecar.二、表示過去某一動作的延續(xù)性和重復(fù)性，并常帶有較強(qiáng)的感情色彩。e.g.Lilyhasbeendoingherhomeworksince4o’clockthisafternoon.e.g.Accordingtoyourteacher,youhaven’tbeendoingyourhomeworkthesedays.e.g.I’vebeenwritinglettersallthiseveningandI’vejustfinishedthem.e.g.Shehasbeenexpectingalongdistancecallallnightlong.三、常與allthistime,thisweek/month,allnight,allthemorning/afternoon,recently等時間狀語以及由since或for引導(dǎo)的時間狀語連用。以下幾類動詞不能用于現(xiàn)在完成進(jìn)行時：①表示感官、感覺：see，hear，smell等；②表示愛憎：love，prefer，mind等；③表示希望、意愿：wish，want，desire等；④表示相信、猜想：believe，think，suppose等；⑤非延續(xù)性動詞。現(xiàn)在完成進(jìn)行時與現(xiàn)在完成時的區(qū)別1.現(xiàn)在完成時強(qiáng)調(diào)完成和影響，現(xiàn)在完成進(jìn)行時強(qiáng)調(diào)未完成和動作。I’vebeendoing

myhomework.我一直在做家庭作業(yè)。（還在做）I’vefinished

myhomework.我已做完家庭作業(yè)了。（已完成）現(xiàn)在完成進(jìn)行時與現(xiàn)在完成時的區(qū)別2.現(xiàn)在完成時經(jīng)常表單個事件，現(xiàn)在完成進(jìn)行時可表重復(fù)事件。Juliahasgone

tothelibrary.朱莉婭去圖書館了。（單個事件）Juliahasbeengoing

tothelibraryforayear.朱莉婭在一年間經(jīng)常去圖書館。（重復(fù)事件）現(xiàn)在完成進(jìn)行時與現(xiàn)在完成時的區(qū)別3.現(xiàn)在完成時通常只陳述事實(shí)，而現(xiàn)在完成進(jìn)行時含感情色彩。Whathaveyoudone你做什么了？（僅是問問）WherehaveyoubeenIhavebeenwaitingforyouintherainfortwohours.你去哪里了？我在雨中等了你兩個小時。（表示不滿）現(xiàn)在完成進(jìn)行時與現(xiàn)在完成時的區(qū)別4.現(xiàn)在完成時通常表示反復(fù)發(fā)生的動作，可用howmanytimes詢問動作完成的次數(shù)；現(xiàn)在完成進(jìn)行時通常表示持續(xù)不間斷的動作，一般用howlong詢問動作持續(xù)的時間。如：Howmanytimeshaveyouvisitedthemuseum（強(qiáng)調(diào)動作的重復(fù)性）Howlonghaveyoubeenworkinginthecompany

（強(qiáng)調(diào)動作的延續(xù)性）現(xiàn)在完成進(jìn)行時與現(xiàn)在完成時的區(qū)別5.already，ever，never，yet等副詞通常不用于現(xiàn)在完成進(jìn)行時。1.It

(rain)

everydaythismonth.2.Sofarthisyearwe

(see)

afallinhousepricesbybetween5and10percent.3.I

(drink)

fivecupsofcoffeethisafternoon.4.Nowthatsheisoutofwork,Lucy

(think)

aboutgoingbacktoschool,butshehasn’tdecidedyet.5.HeisthemostcreativemanthatI

(meet).6.Alltheseyearswe

(try)

togetintouchwithhim.hasbeenraininghaveseenhavedrunkhasbeenthinkinghavemethavebeentryingReadeachsituationandwriteasentencethatbestdescribesit.21.Thedogstartedtobarkabouttwohoursago.Ireallyhopeitwillstopsoon.Thedoghasbeenbarkingforabouttwohours.Ireallyhopeitwillstopsoon.2.Stevestartedtoplayrugbyattheageofeight.Nowhehasbecomeaprofessionalplayer.____________________________________________________________________________________________________Stevehasbeenplayingrugbysincetheageofeight.Nowhehasbecomeaprofessionalplayer.3.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredafterplayingtabletennisfortwohours._________________________________________________________________________________________________________________________________________________________4.Dianehasn’tgotmuchsleepthisweek.Shelooksterribletoday.__________________________________________________________5.Itriedtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere.________________________________________________________________________________________________________Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredbecausehehasbeenplayingtabletennisfortwohours.Dianehasn’tbeensleepingwellthisweek.Shelooksterribletoday.Ihavebeentryingtophoneyouthismorning.ImusthavetriedadozentimesbeforeIcaughtyouhere.Completethesentencesbelowusingthecorrecttensesoftheverbsinbrackets.Thenexplainyourreasonstoyourpartner.31.Forthewholemorning,theboardofdirectors_________________(discuss)theresolutiontoincreasewagesinthecomingyear.2.Jason’sonlyrecreationispainting.He_________________(learn)howtopaintforoverfiveyears.3.Eventhoughwelostthegame,weshouldbeproudofourselvesbecausewe____(try)ourbestand________(work)as

ateam.4.Hefinally________(finish)theresearchpaperunderhistutor’sguidance.5.MynephewSam_________________(collect)comicbookssincehewasfive.Nowhehasmorethantwohundredofthem.6.Thecompany________________________________(launch)anadvertisingcampaigntopromoteitscorporateimage.hasbeendiscussinghasbeenlearningtriedfinishedworkedhasbeencollectinglaunched/islaunching/haslaunchedWorkinp