初中英语零基础学语法--七年级时态ppt课件

时态是一种语法范畴，是用以表示各种时态是一种语法范畴，是用以表示各种时间和动作方面的动词形式。时间和动作方面的动词形式。时间有四个主要方面：现在、过去、将时间有四个主要方面：现在、过去、将来、过去将来。来、过去将来。动作也有四种：一般、完成、进行、完动作也有四种：一般、完成、进行、完成进行。成进行。时间和动作相结合，形成了时间和动作相结合，形成了16种时态。种时态。一般一般完成完成进行进行完成进行完成进行现在现在过去过去将来将来过去将过去将来来动作时间do/doesdidshall/will doshould/would dohave donehad doneshall/will have doneshould/would have donebe doingwas/were doingshall/will be doingshould/would be doinghave been doinghad been doingshall/will have been doingshould/would have been doing1.The Present Tense (一般现在时态一般现在时态)1.表示经常性，习惯性或重复发生的动作，常于频度副词连用。表示经常性，习惯性或重复发生的动作，常于频度副词连用。usually;often;always;seldom;sometimes;once a week;twice a month;every day/every month/every year,never,every other day,every morning,on Sunday etc.*I get up at six every day.It never snows here in winter.2.表示普遍真理或客观事实。表示普遍真理或客观事实。*Light goes faster than sound.*The earth moves around the sun.3.表示将来时间表示将来时间1）表示计划或时间表规定要发生的动作。）表示计划或时间表规定要发生的动作。come,go,leave,arrive,fly,start*Flight 105 leaves at 7:00 at the Pudong Airport.2)在时间和条件状语从句中在时间和条件状语从句中If you try hard,youll be able to fulfill the task.It wont be long before the train stops.常见考点小结：常见考点小结：要点一要点一 第三人称单数的变化规则：第三人称单数的变化规则：一般动词+_以s,ch,sh,x 结尾的动词+_以辅音加y结尾的动词:_以元音+y结尾的动词+_s(eg.likes)es(eg.watches)把把y改为改为i，再加，再加es(eg.flies)s(eg.plays)要点二要点二 基本用法：基本用法：1._2._3._表示目前的特征或状态或现阶段经常性或习惯性的动作等；表示目前的特征或状态或现阶段经常性或习惯性的动作等；表示客观真理或事实；表示客观真理或事实；在时间和条件状语从句中表示将来要发生的动作；在时间和条件状语从句中表示将来要发生的动作；要点三要点三 常用的时间标志：常用的时间标志：always;usually;often;sometimes,every day/week/yearexercises1.I _(be)a student.2.He with his brothers often _(fly)kites after school.3.I will call you as soon as they _(return).amfliesreturn2.The Present Continuous (现在进行时态现在进行时态)1.当前，说话时正在进行的动作当前，说话时正在进行的动作 now;at the momentPhilip is cleaning his car in the yard now.2.表示目前一阶段正在进行，而说话时不一定进行。表示目前一阶段正在进行，而说话时不一定进行。They are rebuilding the restaurant these days.3.表示将来（主要用于位移）表示将来（主要用于位移）Mr.Black is leaving for London in a few days.Were going to Beijing next week.4.表示情感，常于表示情感，常于always,constantly,forever 等表示经常性的状等表示经常性的状语连用。语连用。Hes always thinking of how he could do more for others.(赞扬赞扬)Shes always complaining.(讨厌讨厌)常见考点小结：常见考点小结：要点一要点一 现在分词的变化规则现在分词的变化规则要点二要点二 现在进行时与过去进行时的用法区分现在进行时与过去进行时的用法区分一般动词+_以重读闭音节结尾的动词:_以不发音的e字母结尾的动词:_以ie结尾的动词:_ing(如：如：working)去掉去掉e再加再加ing（如：（如：moving)把把ie变成变成y,再加再加ing(如：如：die-dying)双写最后的辅音字母，再加双写最后的辅音字母，再加ing(如如:putting)现在进行时:_过去进行时:_表示现在进行的动作。表示现在进行的动作。表示过去某一时刻或某一时段正在进行或发生的动作。表示过去某一时刻或某一时段正在进行或发生的动作。要点三要点三 常用的时间标志：常用的时间标志：现在进行时:_过去进行时:_now 或现在的具体时刻，也可从上下文体现出来。或现在的具体时刻，也可从上下文体现出来。at that time;at six yesterday;when he came in等。等。现在进行时态现在进行时态常见考点：常见考点：1.-I called you at 4:00 yesterday afternoon,but no one answered.-Sorry,I _ with my friends at that time.A.swim B.swam C.will swimD.was swimming2.Dont make so much noise.The children _ an English lesson.A.have B.are having C.were having3.I was very angry with John he just _ when I spoke to him.A.isnt listening B.hasnt listened C.didnt listen D.wasnt listening3.The Past Tense(一般过去时态一般过去时态)1.表示主语过去的特征和状态，或者过去某一具体时间发生过的表示主语过去的特征和状态，或者过去某一具体时间发生过的动作动作。*Shanghai was once the“Paradise for Adventurers”.*We saw a film yesterday.2.客观叙述一件发生过的客观叙述一件发生过的事情。事情。She went to Beijing last Sunday.*3.表示过去习惯动作。表示过去习惯动作。常用常用used to 表示过去习惯动作。表示过去习惯动作。Tom used to eat out every day,but now he cant afford it.常见考点小结：常见考点小结：要点一要点一 动词过去式的变化规则：动词过去式的变化规则：一般动词+_以e字母 结尾的动词+_以辅音加y结尾的动词:_以元音+y结尾的动词+_以重读闭音节结尾的动词：_ed(如如:worked)d(如如:lived)把把y改为改为i，再加，再加ed(如如:cried)ed(如：如：played)要点二要点二 基本用法：基本用法：主要用于表达过去时间内发生的动作或存在的状态或过去经常主要用于表达过去时间内发生的动作或存在的状态或过去经常发生的动作或习惯性的动作。发生的动作或习惯性的动作。要点三要点三 常用的时间标志：常用的时间标志：yesterday;last week/month/year;just now;a moment ago;two days ago;on that day;at that time;1998双写最后的辅音字母，再加双写最后的辅音字母，再加ed(如如:stopped)一般过去时态一般过去时态常见考点：常见考点：1.Mr.Black is going to marry a girl he _ in Japan last year.A.meetsB.metC.has met D.would meet2.-What did Mr.Smith do before he came to China?-He _ in a car factory.A.works B.is working C.worked D.will work3.Tom was so careless that he _ his right arm when he was riding to school.A.hurts B.hurt C.has hurt D.had hurt4.The Future Tense（一般将来时态）一般将来时态）*动作即将发生或将会发生在未来的时间里。动作即将发生或将会发生在未来的时间里。*标志：标志：tomorrow;the day after tomorrow;next，in the future，later，before long，soon，in+a period of time,after1.shall/will,shall 用于第一人称，用于第一人称，will可用于个人称可用于个人称Youll feel better after taking this medicine.We shall know the result next week.2.be going to 1)主语的主观打算，主语一般是人主语的主观打算，主语一般是人Are you going to pass that letter by air mail?2)表示表示“预见预见”，即现在已有迹象表明将要发生或即将发生某种，即现在已有迹象表明将要发生或即将发生某种情况。情况。I feel dizzy.I think Im going to faint.Look at these black cloudsit is going to rain.一般将来时态一般将来时态常见考点：常见考点：1.There _a sports meeting in our town next week.A.will have B.will be C.are going to have D.are going to be2.My family _(move)to Shanghai in two days.3.We are glad to hear that the Greens _ to a new flat next week.A.MoveB.moved C.will move D.have movedare movingI often_ basketball after school.I_it tomorrow.I _(not play)it yesterday because I was ill.But my friends _it at four yesterday afternoon.They said they would play it the next Friday.By the time I was 10,I had begun to play it.Since then,I _ it for 5 years.But now what am I doing?I _(not play)it,Im writing my diary.Fill in the blanks with the right forms of the verb PLAY:am not playing playwill playdidnt playwere playinghave played1.Tom did his homework every day.2.Li Lei plays football yesterday.3.There have a meeting tomorrow.4.Robert has a meeting now.5.Mary is doing homework this time yesterday.6.She is a teacher for two years.7.He has finished the task by yesterday.doesplayedwill beis havingwas doinghas beenhadTask 11.Tom did his homework every day.2.Li Lei plays football yesterday.3.There have a meeting tomorrow.4.Robert has a meeting now.5.Mary is doing homework this time yesterday.6.She is a teacher for two years.7.He has finished the task by yesterday.doesplayedwill beis havingwas doinghas beenhadTask 1