新人教版选修八-Unit-5-Meeting-your-ancestors-Grammar[].ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,.,*,Unit 5 Meeting your ancestors,Grammar,.,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 in,.,e.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.,.,Present Perfect Continuous Tense,现在完成进行时:基本用法,1),强调时间的持续性。如：,电话响了差不多一分钟,为什么没人接?,The telephone,has been ringing,for almost a minute.Why doesnt someone answer it?,.,2)表重复。叙述从过去某时到现在或最近已在重复的动作。如：,最近天气变化无常,我时常感冒。,The weather has been changeable lately;,Ive been having,a lot of colds.,3),有感情色彩。如：,今天真是一个多事之日。,Too much,has been happening,today.,.,现在完成进行时和现在完成时的比较,:,A.,未完结性,Ive cleaned,the windows.,我把窗户擦干净了。,Ive been cleaning,the windows.,我擦窗户来着。,(,可能窗户尚未擦完,),.,B.,短暂性,现在完成时与现在完成进行时都可以表示延续至今的状态,但完成进行是常表示短暂性。,A.They,have lived,in New York.,B.They,have been living,in New,York.,句,A,具有长期性,而句,B,具有短暂性。,.,C.,刚完结性,与现在完成时相比,现在完成进行时有时可以表示刚刚完结的动作。有时它是现在事件的直接原因,或者是得出结论的证据。如:,我的手很脏,我在油汽车来着。,My hands are dirty.,Ive been painting,the car.,你的眼睛又红又肿,你是不是哭来着？,Your eyes are red and puffy.,Have,you,been crying,?,.,D.,连续性或重复性,现在完成进行时常常用于表示延续至今的连续性或重复性动作。如：,Jim,have been phoning,Jenny every night for the several month.,All these days he,has been writing,articles to our magazine.,.,结论:现在完成进行时主要用于表示,A.,过去开始而且现在仍在进行的动作。,B.,过去开始,现在刚刚停止的动作。,C.,现在看到其直接结果的动作。,现在完成时主要用于表示已经完成的动作及其与现在的关系。,.,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。带有浓厚的感情色彩，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,recently,What,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),.,May 20 0:10,My younger brother,the net.,(,access,),has been accessing,.,The baby,for 1 hour.,(,sleep,),now,has been sleeping,.,They,basketball all the day.,(,play,),Now,have been playing,.,Now,The boy,_,a book,for,almost 4,hours.(,read,),ha,s,been,reading,.,He,_,with his girlfriend.,(,talk,),now,has been talking,.,The telephone,_,for almost a minute.,(,ring,),The sound has continued about one minute,.,The telephone is ringing.,has been ringing,.,2008-5-20 1:00,2008-5-20 11:00,The young boy,_,TV.,(,watch,),now,TV,has been watching,.,08-5-19,The two robots,since they have been made.,(,danc,e,sing,),have been dancing,and singing,.,in the morning,I don,t know why the,_,pig,.(,run,),now,run,has been running,.,They,_,games in the school.,(,play,),now,Play games,has been playing,.,Oh,you have come at last!I,_,you for two long hours.,(,wait,),(,我等了你足足两个小时,),13:00,15:00,I,m sorry!,have been waiting for,.,You,_,.(,你一直在哭,.),(,cry,),have been crying,.,You are here!I,_,you long.,(look),（我找了你老半天）,have been looking,for,.,Consolidation,1.,Hi,Tracy,you look tired.,Im 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,isnt there?,Yes,it _ for a few days.,A.was snowing,B.has been snowing,C.had been snowing,D.snowed,.,3.Although these scientists _ on the project for nearly four years,I dont 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 hasnt decided yet.,A.had considered,B.has been considering,C.considered,D.is going to consider,.,5.The little boy is dirty from head to foot because he _ in the mud all morning.,A.has played,B.is playing,C.has been playing,D.was playing,.,6,.,Sincce the beginning of the vocation,I,_,across the country,and my next stop is the Wuyi Mountain.,A.has,travel,ed,B.,will travel,C.h,ave,been,travel,ing,D.was,tranel,ing,.,1.A:-I am sorry I _(keep),you waiting so long.,B:-It is all right.I,_(read)the,newspapers.,2.The CCTV _(broadcast)English programmers ever since 1977.,用现在完成时和完成进行填空,:,have kept,have been reading,has been broadcasting,.,3.You _(feel)better when you _(take)the medicine.,4.She said we _(may keep)the book as long as we _(like).,5.Please wake me up if I _ still _(sleep)when you _(come).,6.My sister _(learn)English since she _(be)a child.She _(speak)English fluently now.,will feel,have taken,might keep,liked,am,sleeping,come,has been learning,was,speaks,.,7.My uncle _(come)to see us.He _(arrive)here a few days ago.I _,_(start)for Sydney tomorrow morning.,8.He _(break)his glasses when he _(play)in a football match.,has come,arrived,am going to,start,broke,was playing,.,Thank you very much!,.,