八大时态讲解课件.ppt

1、2种类构成一般现在时do/does一般过去时did一般将来时will/shall+动词原形现在进行时am/is/are+doing现在完成时have/has+过去分词过去进行时was/were+doing过去完成时had+过去分词过去将来时would/should+动词原形知知识导识导航航31 1、构成、构成 一般现在时常用一般现在时常用动词原动词原形形，但第三人称单数作主语时，但第三人称单数作主语时，动词的词尾要加动词的词尾要加s s或或eses42 2、用法、用法表示经常性、习惯性的动作表示经常性、习惯性的动作I I gogo to the park to the park once a

2、week.once a week.When When do you do you usuallyusually have have breakfast?breakfast?表示客观真理表示客观真理The sun The sun risesrises in the east.in the east.5表示主语所具有的特征、性格、表示主语所具有的特征、性格、能力、状态等能力、状态等She She isis a middle school a middle school student.student.She She lookslooks a little worried.a little worr

3、ied.某些以某些以here/therehere/there开头的句子开头的句子中，用一般现在时表正发生的动中，用一般现在时表正发生的动作作Here Here comescomes the bus.the bus.6表示将来发生的、时刻表上不改变的事表示将来发生的、时刻表上不改变的事The train The train leavesleaves Hunan at five Hunan at five oclock.oclock.特殊情况特殊情况在在时间状语从句和条件状语从句时间状语从句和条件状语从句中，若主中，若主句用一般将来时，则从句用一般现在代替句用一般将来时，则从句用一般现在代替将来。

4、（将来。（主将从现主将从现）Ill see you when I Ill see you when I getget there.there.If it If it doesnt rain doesnt rain tomorrow,well tomorrow,well go shopping.go shopping.7常与一般现在时连用的时间状语有：常与一般现在时连用的时间状语有：often 经常 usually 通常 never 从不 every day 每天 sometimes 有时 seldom 几乎不 always 总是 once a week一周一次8【翻译翻译】我今年20岁，住在北

5、京。I am twenty years old this year,and I live in Beijing.火车将在一个小时后（in an hour）出发（set off）。The train sets off in an hour.她每天都走路上学。She walks to school every day.或：She goes to school on foot every day.91 1、构成、构成 现在进行时由现在进行时由“助动词助动词bebe（am/is/aream/is/are）+doing+doing”构成。构成。102 2、用法、用法表此时此刻正发生的动作，常与表此时此刻

6、正发生的动作，常与nownow连用。连用。They They are cleaning are cleaning the room.the room.Listen,someone Listen,someone is shoutingis shouting.与副词与副词alwaysalways连用，表达一种感情连用，表达一种感情色彩。色彩。She She is always thinking is always thinking of others of others instead of herself.instead of herself.Why Why areare you you alw

7、ays coming always coming late?late?11有些动词有些动词（arrive,come,go,leavearrive,come,go,leave）的）的inging形形式可表示将发生的、计划或安排好式可表示将发生的、计划或安排好的事。的事。We We are leaving are leaving here next week.here next week.She She is coming is coming to see me to see me tomorrow.tomorrow.whilewhile后常用后常用doingdoing形式形式WhileWhile

8、 you you are reading are reading the book,the book,he he is sleepingis sleeping.12常与现在进行时连用的时间状语有：常与现在进行时连用的时间状语有：now 现在 right now 现在 these days 这些天 at this moment在此刻 13我认为他正在看电视。I think(that)he is watching TV.当我在睡觉的时候他正在听音乐。While I am sleeping,he is listening to music.【翻译翻译】14【中考链接中考链接】Look!there_

9、our dog.(2013)A.come B.comes C.to come D.comingLook!The sun _,and it _from the west.(2013)falls down,falls down falls down,falling down C.is falling down,falls downD.is falling down,falling down15The man _ with his parents once a year.(2014)goes travel B.goes travelingC.is going travel D.is going tr

10、avelingShe is doing her homework while her mother _ to her.(2014)A.speaks B.spoke C.to speak D.speaking16He is a lazy man.He _the dirty jeans every day.(2014)always wears B.always wearing C.always to wear D.is always wearing You will know the truth after you _him.(2013)A.see B.will see C.are seeing

11、D.to see171 1、构成、构成 一般过去时用一般过去时用动词的过动词的过去式去式表示。除系动词表示。除系动词bebe的过去式的过去式有人称和数的变化外，其他动词有人称和数的变化外，其他动词的过去式无人称和数的变化。的过去式无人称和数的变化。182 2、用法、用法表示过去已经发生的动作，现在表示过去已经发生的动作，现在已经结束，常与相应的过去时间状已经结束，常与相应的过去时间状语连用。语连用。Tom Tom fellfell ill ill last night last night,and,and he he hadhad to stay at home.to stay at home

12、.追述逝去的人或事。追述逝去的人或事。Edison Edison waswas a great inventor.a great inventor.19表示过去经常或反复发生的动作，表示过去经常或反复发生的动作，可与可与always,usually,often,always,usually,often,sometimes,never sometimes,never 连用。连用。He usually He usually walkedwalked to school to school last year.last year.I often I often ateate noodles nood

13、les last weeklast week,but now I seldom like it.but now I seldom like it.20常见的过去时间状语有：常见的过去时间状语有：just now 刚才 yesterday 昨天 in the old days 在那段旧时光里at that time=at that moment 在那时a few days ago=the other day 几天前 21去年他通常坐公交车去上学，但现在经 常骑自行车上学。He usually went to school by bus last year,but now he often goe

14、s to school by bike.【翻译翻译】221 1、构成、构成 一般将来时态由一般将来时态由“will/shall+will/shall+动词原形动词原形”构成，构成，表示将来发生的动作或状态。表示将来发生的动作或状态。We will/shall come to ask We will/shall come to ask Mary for help.Mary for help.232 2、其他表示、其他表示be going to+be going to+动词原形：表示动词原形：表示说话人主观的说话人主观的打算或预测打算或预测。I I am going to am going to

15、look for a job look for a job here.here.It It is going to is going to be a fine day be a fine day for camping tomorrow.for camping tomorrow.24be to do:be to do:表示已经计划或安排表示已经计划或安排好的动作。好的动作。The president The president is to visit is to visit China next week.China next week.The meeting The meeting is t

16、o start is to start early early tomorrow.tomorrow.25be about to do:be about to do:表示马上要发表示马上要发生的事，不强调主观。生的事，不强调主观。The train is about to leave.The train is about to leave.be about to do when be about to do when 正当正当时时I I am about to leave when am about to leave when the the phone rings.phone rings.26

17、注意：在从句中的将来时态，注意：在从句中的将来时态，will要要变成相应的时态。变成相应的时态。She said she would help me if she finished her work.27他昨天说他很快将要离开。Yesterday,he said he would leave soon.正当他要说话时，老师来了。He is about to speak when the teacher comes.【翻译翻译】281 1、构成、构成 现在完成时由现在完成时由“助动词助动词have/has+have/has+过去分词过去分词”构成，表构成，表示一件已发生的事与现在情况有示一件已发

18、生的事与现在情况有联系，往往对现在造成一定影响。联系，往往对现在造成一定影响。I have lost my key.I have lost my key.The lift has broken down.The lift has broken down.292 2、用法、用法常可以和常可以和just,ever,already,just,ever,already,recently,yetrecently,yet等词连用。等词连用。He He has has just just left.left.HaveHave you you phonedphoned him yet?him yet?(否定回

19、答否定回答)：No,I havent.No,I havent.30常和常和for+for+时间段、时间段、sincesince引导的引导的时间状语、时间状语、how long how long 连用。连用。How long How long havehave you you knownknown her?her?I I have known have known her her for three for three years.years.强调直到现在为止的经历。强调直到现在为止的经历。He He hashas only only beenbeen to China once.to Chin

20、a once.31在在时间和条件状语从句时间和条件状语从句中，用现中，用现在完成时代替将来完成时。在完成时代替将来完成时。I will go home I will go home as soon as as soon as I I have finished have finished all my work.all my work.I will I will notnot let you go let you go until until you you have finishedhave finished your work.your work.32和和timetime连用的情况连用的情

21、况This/It is the first time This/It is the first time that that I I have seen have seen a panda.a panda.由由sincesince引导的从句中，主句用引导的从句中，主句用现在完成时，从句用一般过去时。现在完成时，从句用一般过去时。We We have been have been friends since we friends since we metmet at school.at school.33注意区别：注意区别：have gone to:到某地去了，还未回来have been to：

22、到过某地I havent seen John for days,where has he gone?He has gone to America for business.I have been to America.34他去上海待了一周。He has been to Shanghai for a week.我将在你离开之后告诉他们（after）。I will tell them after you have left.你找到你的钥匙了吗？Have you found your key?【翻译翻译】351 1、构成、构成 过去进行时由过去进行时由“助动词助动词be(was/were)+doin

23、gbe(was/were)+doing”构成，表示在构成，表示在过去某一时间点正在进行的动作。过去某一时间点正在进行的动作。at that time at that time 当时当时this time yesterdaythis time yesterday昨天这个时候昨天这个时候36What What were you doing were you doing at 8:30 at 8:30 yesterday evening?yesterday evening?I I was watching was watching TV.TV.【小试牛刀小试牛刀】他们昨天这个时候正在吃晚餐。他们昨天

24、这个时候正在吃晚餐。They were having dinner this They were having dinner this time yesterday.time yesterday.371 1、构成、构成 过去完成时由过去完成时由“助动词助动词 had+had+过去分词过去分词”构成，表示在过去某构成，表示在过去某一时刻或动作之前已经完成的动作，一时刻或动作之前已经完成的动作，即即“过去的过去过去的过去”。这个过去的时刻。这个过去的时刻常用常用by,beforeby,before等介词短语来表示。等介词短语来表示。38常与过去完成时连用的时间状语有：常与过去完成时连用的时间状语有

25、：before that year 那年之前by the/that time 到的时候by the end of 到为止39By the time By the time he got there,he got there,the bus the bus had lefthad left.He He had worked had worked for 10 hours for 10 hours before he sleptbefore he slept.【小试牛刀小试牛刀】到去年为止我都没有见到他。到去年为止我都没有见到他。I had not seen him by the I had no

26、t seen him by the end of last year.end of last year.401 1、构成、构成 过去完成时由过去完成时由“助动词助动词would/should+would/should+动词原形动词原形 或或 was/were going to+was/were going to+动词原形动词原形”构成，构成，表示从过去某一时间看将要发生的动表示从过去某一时间看将要发生的动作。作。41Last week he said he Last week he said he would would comecome to see me.to see me.I I was

27、 about to was about to leave when leave when the phone rang.the phone rang.【小试牛刀小试牛刀】她告诉我她打算去香港。她告诉我她打算去香港。She told me she was going to She told me she was going to Hong Kong.Hong Kong.42【高考链接高考链接】When Alice came to,she did not know how long she _ there.(12全国全国)had been lying B.has been lying C.was

28、lying D.has lainIt was only after some process _in preventing the water pollution that we began to realize the significance of it.(13重重庆庆)was made would have been made C.has been madeD.had been made43-I met Tom last month.-Really?-Yes.We_ each other since we graduated from college.(14山东山东)havent met

29、 B.hadnt metC.wouldnt meet D.didnt meetMy oil _.I must go to the gas station before there is none left.(10山东模考山东模考)has run out B.is running out C.has been run out D.is being run out44After getting lost in a storm,a member of the navy team _four days later.(11上海上海)rescued B.was rescuedC.has rescued D.had been rescued The manager was worried about the press conference his assistant _in his place,but luckily,everything was going on smoothly.(13四四川川)gave B.has given C.was given D.had given