Unit+4+Information+technology语法现在完成进行时 高中英语北师大版（2019）必修第二册

高中语法现在完成进行时学习目标：1.学习现在完成进行时的概念，结构，以及用法。2.对比学习现在完成时和现在完成进行时的区别。Leadin挑战一下，翻译以下句子：1.Ihavewrittenabook.Itwasfinishedlastyear.2.Hasyourfatherlosthiskeys?3.Whohaseatenmydinner?

思考回忆：标红处是啥时态？咋翻译？have/has是“有”的含义吗？时态助动词Ihavegotaheadache.Nowonder.Youhavebeenworkinginfrontofthecomputertoolong.Leadin思考：女生work是从何时开始的？现在还在继续吗？怎么理解翻译havebeenworking

？Thepresentperfectcontinuoustense现在完成进行时Presentationcontinue

pastfuturenowdiddohavebeendoingdo现在完成进行时Definition:thepresentperfectcontinuousmeansanactionstartedfromthepast,andthencontinuethatactiontothepresent,maybeitwillcontinueinthefuture.现在完成进行时表示一个由过去某一时间开始一直延续到现在的动作，这动作有可能刚刚结束，也可能还要进行下去。have/hasdonebedoing

have/hasbeendoing挑战一下，将句子变形。1.Shehaswrittenabook.2.否定句：________________________.3.一般疑问句：__________________________?思考：现完进：have/hasbeendoing的句子如何变形？肯定句:

Ihavebeenworking.She

hasbeenworking.否定句:

I________________working.

He______________working.疑问句:______________working?

______________working?

have/has时态助动词have

notbeen(haven’t)has

notbeen(hasn’t)

Have

Ibeen

Has

shebeen总结：have/has时态助动词，句式围绕have/has变换！1.I

_____________________(feel)rathertiredlatelyandI______________________(sleep)verywell.have

beenfeelinghaven’tbeensleeping2.Whatbook_____________________(read)recently?haveyoubeenreading用法一：叙述“最近”一直从事的工作或活动。经常与

lately,recently的时间状语连用.PracticeandLearnNow，完成学案1,2,4,5,6,7题4.We___________________(study)ontheInternet

sincemid-August.havebeenstudying九江市柴桑区第一中学蔡钦

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

havebeenstaying用法二：叙述某一动作从过去开始一直继续到现在仍在继续之中，可能还要继续下去的动作。

经常与“for+段时间”或“since+点时间"的时间状语连用.PracticeandLearn

6.Youarehere!I________________(lookfor)youalltheday!havebeenlooking

for

7.Mom_____________(do)houseworkallday.hasbeendoing用法三：叙述从过去某时开始一直继续到现在，但不再继续下去的事情。带有浓厚的感情色彩，强调持续了“那么久”或做得“那么辛苦”。经常与alltheday，allthetime时间状语连用.PracticeandLearn体会三种情况下的三个句子，你会发现：主语的动作均是在_______发生，持续到_____，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（总结对比）继续过去现在继续挑战一下，翻译句子：那句话的饭有剩余啊？1.Whohaseatenmydinner?

2.Whohasbeeneatingmydinner?(已吃光)(一直在吃，还有剩下的)区别1：现在完成时着重结果；现在完成进行时强调动作的持续性,暂时性和未完成性。Compare：现在完成进行时&现在完成时挑战一下，翻译句子：那句话中有感情色彩？3.Recently,Jackhasbeendoinghiswork.4.Recently,Jackhasdonehiswork.(陈述事实)(赞许)区别2.现在完成进行时含有明显的感情色彩，现在完成时往往只说明一个事实，一种影响或结果，没有感情色彩。Compare：现在完成进行时&现在完成时体会现完进的感情色彩1.Thestudentshavebeenpreparing

fortheexam.2.Myfatherhasalwaysbeenlosinghiskeys.(赞许)(责备，无奈)用所给词的适当形式填空1.I

(teach)formorethan13years.

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

(work)onitformorethananhour.

havebeenteachinghasbeenworking

havedrunkExercises九江市柴桑区第一中学蔡钦单句改错1.Alltheseyearstheyarecontributingarticlestoourmagazine.2.WhathaveyoubeendoneinBeijing?hav