Unit+4+Information+technology語法現(xiàn)在完成進行時 高中英語北師大版（2019）必修第二冊

高中語法現(xiàn)在完成進行時學習目標：1.學習現(xiàn)在完成進行時的概念，結構，以及用法。2.對比學習現(xiàn)在完成時和現(xiàn)在完成進行時的區(qū)別。Leadin挑戰(zhàn)一下，翻譯以下句子：1.Ihavewrittenabook.Itwasfinishedlastyear.2.Hasyourfatherlosthiskeys?3.Whohaseatenmydinner?

思考回憶：標紅處是啥時態(tài)？咋翻譯？have/has是“有”的含義嗎？時態(tài)助動詞Ihavegotaheadache.Nowonder.Youhavebeenworkinginfrontofthecomputertoolong.Leadin思考：女生work是從何時開始的？現(xiàn)在還在繼續(xù)嗎？怎么理解翻譯havebeenworking

？Thepresentperfectcontinuoustense現(xiàn)在完成進行時Presentationcontinue

pastfuturenowdiddohavebeendoingdo現(xiàn)在完成進行時Definition:thepresentperfectcontinuousmeansanactionstartedfromthepast,andthencontinuethatactiontothepresent,maybeitwillcontinueinthefuture.現(xiàn)在完成進行時表示一個由過去某一時間開始一直延續(xù)到現(xiàn)在的動作，這動作有可能剛剛結束，也可能還要進行下去。have/hasdonebedoing

have/hasbeendoing挑戰(zhàn)一下，將句子變形。1.Shehaswrittenabook.2.否定句：________________________.3.一般疑問句：__________________________?思考：現(xiàn)完進：have/hasbeendoing的句子如何變形？肯定句:

Ihavebeenworking.She

hasbeenworking.否定句:

I________________working.

He______________working.疑問句:______________working?

______________working?

have/has時態(tài)助動詞have

notbeen(haven’t)has

notbeen(hasn’t)

Have

Ibeen

Has

shebeen總結：have/has時態(tài)助動詞，句式圍繞have/has變換！1.I

_____________________(feel)rathertiredlatelyandI______________________(sleep)verywell.have

beenfeelinghaven’tbeensleeping2.Whatbook_____________________(read)recently?haveyoubeenreading用法一：敘述“最近”一直從事的工作或活動。經(jīng)常與

lately,recently的時間狀語連用.PracticeandLearnNow，完成學案1,2,4,5,6,7題4.We___________________(study)ontheInternet

sincemid-August.havebeenstudying九江市柴桑區(qū)第一中學蔡欽

5.Toisolate(孤立，隔絕)the2019-ncov,somepeople_________________(stay)atthehotelalreadyforaweek.

havebeenstaying用法二：敘述某一動作從過去開始一直繼續(xù)到現(xiàn)在仍在繼續(xù)之中，可能還要繼續(xù)下去的動作。

經(jīng)常與“for+段時間”或“since+點時間"的時間狀語連用.PracticeandLearn

6.Youarehere!I________________(lookfor)youalltheday!havebeenlooking

for

7.Mom_____________(do)houseworkallday.hasbeendoing用法三：敘述從過去某時開始一直繼續(xù)到現(xiàn)在，但不再繼續(xù)下去的事情。帶有濃厚的感情色彩，強調(diào)持續(xù)了“那么久”或做得“那么辛苦”。經(jīng)常與alltheday，allthetime時間狀語連用.PracticeandLearn體會三種情況下的三個句子，你會發(fā)現(xiàn)：主語的動作均是在_______發(fā)生，持續(xù)到_____，要么______下去，要么不再_______.1.I

have

beenfeeling

(feel)rathertiredlately.4.Wehavebeenstudying(study)ontheInternet

sincemid-August.7.Momhasbeendoing

(do)houseworkallday.

SummaryandComparison（總結對比）繼續(xù)過去現(xiàn)在繼續(xù)挑戰(zhàn)一下，翻譯句子：那句話的飯有剩余??？1.Whohaseatenmydinner?

2.Whohasbeeneatingmydinner?(已吃光)(一直在吃，還有剩下的)區(qū)別1：現(xiàn)在完成時著重結果；現(xiàn)在完成進行時強調(diào)動作的持續(xù)性,暫時性和未完成性。Compare：現(xiàn)在完成進行時&現(xiàn)在完成時挑戰(zhàn)一下，翻譯句子：那句話中有感情色彩？3.Recently,Jackhasbeendoinghiswork.4.Recently,Jackhasdonehiswork.(陳述事實)(贊許)區(qū)別2.現(xiàn)在完成進行時含有明顯的感情色彩，現(xiàn)在完成時往往只說明一個事實，一種影響或結果，沒有感情色彩。Compare：現(xiàn)在完成進行時&現(xiàn)在完成時體會現(xiàn)完進的感情色彩1.Thestudentshavebeenpreparing

fortheexam.2.Myfatherhasalwaysbeenlosinghiskeys.(贊許)(責備，無奈)用所給詞的適當形式填空1.I

(teach)formorethan13years.

2.I__________________(drink)fivecupsofcoffeethisafternoon.3.Iwon’ttellthestudenttheanswertothemathsproblemuntilhe

(work)onitformorethananhour.

havebeenteachinghasbeenworking

havedrunkExercises九江市柴桑區(qū)第一中學蔡欽單句改錯1.Alltheseyearstheyarecontributingarticlestoourmagazine.2.WhathaveyoubeendoneinBeijing?hav