人教版选修八 Unit 5 Meeting your ancestors-Grammar现在完成进行时 课件 (共36张PPT)

课件36张PPT。Present Perfect ContinuousGrammarUnit 5 Meeting your ancestorsMay 20 0:10My younger brother the net.has been accessingThe baby for 1 hour.nowhas been sleepingThey basketball all the day.Nowhave been playingNow The boy a book for almost 4 hours. has been readingHe with his girlfriend.nowhas been talking The telephone for almost a minute. The sound has continued about one minute .The telephone is ringing.has been ringing2008-5-20 1:002008-5-20 11:00The young boy TV.nowTVhas been watching08-5-19The two robots since they have been made.have been dancing and singingin the morningI don,t know why the pig .nowrunhas been runningThey has been playing games in the school.nowPlay games Oh, you have come at last! I have been waiting for you for two long hours. (我等了你足足两个小时)13:0015:00I,m sorry!You have been crying .(你一直在哭.)I have been knocking. I don’t think anybody’s in. (我一直在敲门。我想没人在里面。)No person ? You are here! I have been looking for you long. （我找了你老半天）现在完成进行时1.构成形式： hashave been doing2.用法1, 叙述某一动作从过去开始一直继续到现在仍在继续之中或刚刚停止。经常与for, since, recently,all morning/day/week,how long,all the time用在一起。1) You have been studying for four straight hours. Why don’t you take a break? 2) The telephone has been ringing for almost a minute. Why doesn’t someone answer it?2, 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。－－带有浓厚的感彩，强调持续了“那么久”或做得“那么辛苦”1) Oh, you have come at last! I have been waiting for you for two long hours.(我等了你足足两个小时) 2) You are here! I have been looking for you long.（我找了你老半天）3, 叙述“最近”一直从事的工作或活动。－－lately, recentlyWhat’s the matter? Your eyes are red and puffy. Have you been crying?(你是不是一直在哭？)4, 叙述从过去某时到现在，或最近，一再重复的动作。I have been knocking. I don’t think anybody’s in.(我一直在敲门。我想没人在里面。) I have been writing letters since breakfast.(我从早餐起就一直在写信) The Present Perfect Tense 现在完成时: 基本用法 现在完成时表结果, 他的动作发生在过去, 但是对现在有影响, 而这种影响却往往是说话人的兴趣所在。现在完成时跨越两个时间, 一个是过去, 另一个是现在。Lead-ine.g. 我从1975年起就学英语。 I have studied English since 1975. 自12世纪以来, 中国就使用彩色印刷了。 They have done color printing in China since the 12th century.Consolidation1. ——— Hi, Tracy, you look tired. ——— I'm tired. I ___ in the living room all day. A. painted B. had painted C. have been painting D. have painted 2. — There is so much snow these days, isn't there? — Yes, it ____ for a few days. A. was snowing B. has been snowing C. had been snowing D. snowed3. Although these scientists ____ on the project for nearly four years, I don't know how long it will last. A. have been working B. had worked C. were working D. are working 4. Now that she is out of job, Lucy ____ going back to school, but she hasn't decided yet. A. had considered B. has been considering C. considered D ... ...