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函数的表示方法(中等职业教育课程改革国家规划新教材).ppt

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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,*,动词的时态,动词的时态结构歌谣,一般现在时,,动词用原型;,一般时,单数三人称,,动词加“,s”,。,一般过去时,,动词加“,ed”,。,I,work,.,He,works,.,I,worked,.,现在进行时,进行时,例句:,I,am working,.,过去进行时,am,is,are,-ing,。,was,were,-ing,。,例句:,I,was working,.,将来时,一般将来时,,would,加原型。,过去将来时,,will,加原型。,I,will work,.,I,would work,.,完成时,现在完成时,,have/has,加过分。,I,have worked,.,过去完成时,,had,加过分。,I,had worked,.,各种时态的用法,一、一般现在时,1,.,用法:,A.,现在,经常性,的,动作,或,状态,B.,客观事实,和,真理,。,2,.,标志词,:,always,usually,often,sometimes,never,every day/week/month/year/,1.The boy usually_(get)to school early.,gets,2.Light _(travel)faster than sound.,travels,二、一般过去时,1.,用法:,过去,的,动作,或,状态,。,2.,标志词:,yesterday,the day before yesterday,three days ago,last night/week/month,in the past;just now=a moment ago,点击中考,Li Ming didnt understand what American people said,_?(2004,北京市中考,),A.couldnt,heB.could he,C.didnt,heD.did he,三、现在进行时,1.,用法:,A.,现刻动作,:目前正在发生的动作。,B.,现阶段动作,:目前一个时期一直在进行的动作,此刻不一定在进行。,2.,标志词:,now,Look!Listen!,中考模拟,:,-Mike,who_football in the yard?,-Let me go and see.,(,2004,顺义),A.has playedB.will play,C.was playingD.is playing,1.Look!What_the children_ over there?,2.Those workers_here these months.,A.are workB.are worked,C.workD.are working,A.are;doB.are;doingC.is;doD.is doing,3.-How_you_along with your workmates?,-Very well.,A.do;get B.will;get C.can;get D.are;getting,4.-Must I water the flowers now?,-No,you neednt.Jack_them.,A.is wateringB.watering,C.watersD.is watered,注意,A,.,有几个,瞬间动词,可以用,现在进行时,表,将来,如:,begin,start,come,go,leave,。,1.-Lucy!Would you like to give me a hand?,-OK.I_.,A.will comeB.come,C.am comingD.would come,2.-When_you_for Toronto?,-Tomorrow.,A.do;leaveB.are;leaving,C.will;leavingD.shall;leave,The boy,_,always _,us!(,夸赞,),A.is;helpingB.does;help,C.can;helpD./;help,B,.,现在进行时和,always,连用,表示说话人较强烈的,感情色彩。,You,_,always,_,the same mistake!,(,责备,),A.do;makeB.does;make,C.is;makingD.are;making,四、过去进行时,1.,用法:,过去某时正在进行的动作。,2.,标志词:,at that time,this time yesterday,then,when,1.Father_when I _yesterday morning.,A.still slept,got up B.was still sleeping,got up,C.is sleeping,got up D.sleeps,get up,2.She_apples in her garden when I_to see her yesterday.,A.picked,went B.was picking,went,C.picked,was going D.was picking,was going,五、一般将来时,1.,用法:,将来的动作或状态,。,2.,结构:,will,shall,be going to,3.,标志词:,tomorrow,the day after tomorrow,in,three days,in(the)future,next week/month/term,from now on,+V.(,原型,),(第一人称),4.shall/will/be going to,之间的区别:,1,计划,决定要做某事,一般用,be going to do,结构,。,shall,往往用于,第一人称疑问句,will,可用于任何人称,。,2,will,常用于表,邀请,或,命令,时以及带有,意愿色彩,。,3,1.There_two meetings tomorrow afternoon.A.are going to be B.are going to haveC.is going to be D.will have,2.The twins_to the cinema with their parents tonight.,A.will go B.would goC.are goD.went,3.-When_we have the meeting?-At 8.A.areB.shallC.wouldD.will,4.-When_you_for London?-Next week.A.will;leavingB.are;leaving C.shall;leaveD.have;left,六、过去将来时,1.,用法:,从过去看将要发生的动作。,2.,结构:,would,was/were/going to,+,v.,(,原型,),1.-What did he say yesterday?,-He said he_to Sydney next week.,A.goesB.will goC.would goD.are going,2.-Did your son fail his English exam once again?,-Yes,but he told me he_hard next term.,A.studiesB.is studyingC.will studyD.would study,试题:,1.,用法:,1,2,七、现在完成时,现在完成时,过去,现在,影响,:,作业都做完了,我能出去玩会儿吗?,这该死的!我都等了一个小时了,他怎么还不来?,过去,的动作对,现在,的影响。,I,have finished,my homework.,过去,的动作持续到,现在,。,I,have stayed,here for an hour,!,2.,标志词:,already,just,yet,ever,never,so far(till now/up to now),recently,in the past 3 years,before,since+,时间点,for+,时间段,3.,现在完成时和一般过去时的异同点:,共同点:,动作都在,过去,。,不同点:,和,现在,有无关系。,(,与现在有关的过去动作用现在完成,与现在无关的过去动作用一般过去。,),4.,易错点:,1,2,1,have gone to+,地点,表示“,去了,某地”。,(,人已走,,尚未回。只用于,第三人称,。),They,have gone to,Europe.,(They are not here.),have been to+,地点,表示“,去过,某地”。,(,人已回,),I,have been to,Europe.,(I am not in Europe now.),3,have been in+,地点,+,时间段,表示“,在,/,来,某地多久”。,I,have been in,Europe for three weeks.,(I am now still in Europe.),2,5.,瞬间动词和延续性动词,若句中出现,时间段,,则必须使用,延续性动词,。瞬间动词和延续性动词转换关系如下:,begin/start,be on,go there,be there,leave,be away,get home,be home,die,be dead,open,be open,join,be in/be a member of,close,be closed,get to know,know,get married,be married,borrow,keep,come here,be here,buy,have,1.The film began 5 minutes ago.,2.They left an hour ago.,3.The man died a week ago.,4.He joined the club 3 days ago.,5.They got married 10 years ago.,6.He came here an hour ago.,7.Jack got home 2 hours ago.,8.Mum opened the door just now.,9.They got to know 10 years ago.,10.I borrowed the book a week ago.,11.I bought the car a year ago.,The film_ _ _ for 5 minutes.,They_ _ _for an hour.,The man_ _ _ for a week.,He_ _ _the club for 3 days.,They_ _ _for 10 years.,He_ _ here since an hour ago.,Jack_ _home for 2 hours.,The door_ _open for a while.,They_ _since 10 years ago.,I_ _the book for a week.,I_ _the car since a year ago.,has been on,have been away,has been dead,has been in,have been married,has been,has been,has been,have known,have kept,have had,1.-What a nice bike!How long_you_it?,-Just two weeks.(2004,北京市中考,),A.will;buy B.did;buy C.are;having D.have;had,2.-How long have you_here?-Since 1997.,A.arrived B.moved C.come D.lived,3.-I cant find my pen._you_it anywhere?,-No.Look!Whats that under your book?,A.Have;seenB.Do;seeC.Did;see D.Had;seen,4.-Im sorry to have kept you waiting.,-Oh,not at all.I_here for only a few minutes.,A.will beB.wasC.amD.have been,5.I wont go to see the film because I_the ticket.(2002,河南,),A.lostB.have lostC.will lost,D.didnt,lost,八、过去完成时,1.,用法:发生在,过去的过去,的动作。,They,had got married,when he,came back,.,got married came back,现在,过去,过去的过去,我来晚了!没希望了!,终于结婚了!好幸福呀!,现在完成时,2.,标志词:,by the end of,by the time,when+,一般过去时,过去完成时是一种相对存在的时态,判定时必须根据上下文找到一个可以作为参照点的过去时间,,在此参照点前发生的动作,都可以用过去完成时。,注意:,1.We_learning 1000 words by the end of last term.,A.finishedB.have finishedC.had finishedD.finish,2.The train_when we got to the station.,A.leavesB.have left C.were leaving D.had left,3.By the time he returned,his son_supper.,A.cooks B,.had cooked C.has cookedD.was cooking,时态综合试题,1.Sorry,I_to help you at ten.I was busy at the moment.,A.wont come B.cant come,C.didnt,come,D.shouldnt,come,2.He_this pen for five years.He_it in 1997.,A.has bought,bought.B.bought,bought,C.has kept,has bought D.has had,bought,3.She_the flowers in the garden when I_to see her yesterday.,A.watered,,,went B.was watering,,,went,C.watered,,,was going D.was watering,,,was going,4.I don t know if my friend_.If he _,Ill let you know.,A.comes,comes B.comes,will come,C.will come,comes D.will come,will come,5.John said he_ supper.He was quite full.,A.had had B.was having C.had D.has eaten,6.There_two parties next week.,A.are going to be B.are going to have,C.is going to be D.will have,7.It_10 years since I_here.,A.is,come B.is,have come,C.was,came D.is,came,8.-Kate likes eating chocolate.,-_.Look,she is eating.(2003,十堰市,),A.So Lucy doesB.So does Lucy,C.So they doD.So do they,9.Kate_to bed until her mother_back.,A.wont go,come,B.hadnt,gone,came,C.went,came,D.didnt,go,came,10.His brother_from home for a long time.,A.has left B.has been away,C.left D.will leave,11.-Lucy,_you_your ticket?-Not yet.(2003,河北省,),A.did;findB.have;foundC.has;foundD.do;find,12.-_to the United States?,(,2003,安徽),-No,never,but I went to Canada a few years ago.,A.Have you beenB.Have you gone,C.Did you goD.Have you went,13.The man who lived on the island thought he_ never_.(2001,广州,),A.will;foundB.would;be foundC.is;foundB.had;been found,14,.-I dont know if his uncle_.,-I think he_if it doesnt rain.(,2003,重庆,),A.will come;comes B.will come;will come,C.comes;comesD.comes;will come,15.-Linda had nothing for breakfast this morning,_?,-No,she got up too late.(2003,河北),A.had she,B.hadnt,sheC.did she,D.didnt,she,16.The flowers_well if they_.(2002,青岛,),A.wont grow;dont take good care of,B.dont grow;are taken good care of,C.wont grow;are not taken care of,D.dont grow;dont take care of,17.-Hurry up!Its time to leave.-OK,_.(2003,江西,),A.Im coming,B.Ill,come,C.Ive,comeD.I come,18.There_an English evening next Tuesday.(2002,甘肃,),A.wasB.will beC.will haveD.are going to be,19.I must return the camera to Li Lei,I_it for two weeks.,A.keepB.borrowedC.have keptD.have lent(2003,辽宁,),20.-When_ this kind of computer_?-Last year.(2002,天津,),A.did;useB.was;usedC.is;usedD.are;used,21.-Jerry,_you_your lost book?-Not yet.,A.did;findB.have;foundC.has;foundD.do;find,22.-Dont forget to post this letter for me,please!,-No,I_.(2003,江西,),A.dontB.wont,C.mustnt,D.cant,23.Do you know if_back next week?If he_back,please let me know.(2002,黑龙江,),A.he comes,will comeB.will he come;comes,C.he will come;comesD.will he come,will come,Many,thnks,!,
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