课件28张PPT。语法互动(十) 时态和语态语法互动(十)┃ 时态和语态名师点睛考点过关名 师 点 睛 动词时态和语态是初中英语两大语法项目,是中考的高频考点。初中阶段应掌握的时态共有八种,即一般现在时、一般过去式、一般将来时、过去将来时、现在进行时、过去进行时、现在完成时和过去完成时。英语中的动词有两种语态:主动语态和被动语态。语法互动(十)┃ 时态和语态考点一 动词的时态1.一般现在时
(1)结构:名师点睛考点过关语法互动(十)┃ 时态和语态(2)用法:
①表示经常性、习惯性的动作或状态。常与seldom, often,
usually, always, sometimes, every day, on Sundays 等时间
状语连用。如:
I go to school at seven every day.
我每天七点上学。
②表示客观真理和科学事实。如:
The earth moves around the sun.
地球围绕太阳转。
③在时间和条件状语从句中代替一般将来时。如:
I'll go shopping with my mother if she is free tomorrow.
如果明天我妈妈有空,我将和她去购物。名师点睛考点过关语法互动(十)┃ 时态和语态(3) 动词主语是第三人称单数形式的变化规则:writes washes studies has 名师点睛考点过关语法互动(十)┃ 时态和语态2. 现在进行时
(1)结构:主语+am/is/are+动词-ing形式+其他.
(2)用法:
①表示目前正在进行的动作,常与now, at the moment等
时间状语连用。当有listen, look等提示词时,后面的句
子常用现在进行时。如:
Listen! She is singing in the next room.
听!她正在隔壁房间唱歌。名师点睛考点过关语法互动(十)┃ 时态和语态②表示现阶段正在进行,而此刻不一定在进行的动作。如:
We are going over the lessons these days.
这些日子我们在复习功课。
③趋向动词 come, go, leave, fly等用现在进行时表示将来。如:
They are leaving for England tomorrow.
他们明天要去英国。名师点睛考点过关语法互动(十)┃ 时态和语态(3)现在分词的变化规则: making running 名师点睛考点过关语法互动(十)┃ 时态和语态3. 一般将来时
(1)结构:
主语+助动词will/shall+动词原形+其他.
主语+am/is/are going to +动词原形+其他.
(2)用法:
①表示将要发生的动作或状态,常用的时间状语有soon,
next time, tomorrow, from now on等。如:
Fish _____________ without water.
离开水,鱼就会死。will die 名师点睛考点过关语法互动(十)┃ 时态和语态②表示“主观意愿、打算”用be going to;根据迹象推测也用be going to。如:
He _______________ learn English next term.
下学期他打算学英语。
Look at the black clouds! It's going to rain.
看那些乌云!马上要下雨了。is going to 名师点睛考点过关语法互动(十)┃ 时态和语态4.一般过去时
(1)结构:主语+动词过去式+其他.
(2)用法:
①表示过去的某个时间发生的动作或存在的状态。如:
His friend was at work yesterday.
他的朋友昨天在工作。
②表示过去经常或反复发生的动作; 常与 often, always
等表示频度的时间状语连用。如:
We often went to work by bus last year.
去年我们经常乘公共汽车上班。名师点睛考点过关语法互动(十)┃ 时态和语态(3)动词过去式的变化规则:closed preferred 名师点睛考点过关语法互动(十)┃ 时态和语态5. 现在完成时
(1)结构:主语+have/has+动词过去分词+其他.
(过去分词的变化规则基本与过去式变化相同。 有些特殊变
化需单独记忆。)
(2)用法:
①表示过去的动作对现在造成的影响和结果。可与 just,
already, yet, ever, never, before 等时间状语连用。如:
I have seen the film already.
我已经看过这部电影了。名师点睛考点过关语法互动(十)┃ 时态和语态②表示从过去某一时刻开始一直持续到现在的动作或状态; 常与“since+时间点”,“for+时间段”等时间状语连用。如:
We ______________ thousands of trees since 2000.
自从2000年开始,我们已经种了成千上万棵树了。
He _____________ English for three years.
他学英语三年了。have planted has learned 名师点睛考点过关语法互动(十)┃ 时态和语态(3) 一般过去时和现在完成时的区别:
一般过去时只是说明动作是在过去发生的,而现在完成时
强调过去的动作对现在的影响。如:
I saw the movie yesterday.
我昨天看了这部电影。(强调电影是昨天看的)
I have seen the movie.
我已经看过这部电影了。(强调电影看过了)名师点睛考点过关语法互动(十)┃ 时态和语态(4) 现在完成时中,如果时间状语表示一段时间,要把
非延续性动词变为延续性动词。如:
I have had the book for two days.
这本书我买了两天了。(用had而不用bought)
He has been in Beijing for two weeks.
他来北京两周了。(用been in而不用come to)名师点睛考点过关语法互动(十)┃ 时态和语态常见的非延续性动词与延续性动词转化如下表:名师点睛考点过关语法互动(十)┃ 时态和语态6. 过去进行时
(1)结构:主语+was/were+doing+其他.
(2)用法:
表示过去某一时间点或某一段时间正在进行的动作。 常与when,
while, from 9 to 11, last evening 等时间状语连用。如:
I ____________ my homework all the morning yesterday.
昨天上午我一直在做作业。
What was your father doing while your mother was cooking?
你妈妈做饭时,你爸爸在干什么?was doing 名师点睛考点过关语法互动(十)┃ 时态和语态7.过去将来时
(1)结构: 主语+would+动词原形+其他.或主语+
was/were+going to+动词原形+其他.
(2)用法:
表示从过去的某一时刻看,将要发生的动作。如:
His uncle said that _________________ a good harvest
the next year. 他叔叔说明年会有个好收成。
[提醒] 在由 if 引导的条件状语从句中,如果主句中用过去
将来时,if 从句中需用一般过去时代替过去将来时。如:
Amy said that she would go shopping if it didn't rain
the next day.
艾米说如果明天不下雨,她就去购物。there would be 名师点睛考点过关语法互动(十)┃ 时态和语态8.过去完成时
(1)结构:主语+had+动词的过去分词+其他.
(2)用法:
①表示过去的某一时刻以前已经发生的动作或存在的状
态,也就是“过去的过去”。常以 by , before 短语或
when, before, after, until 等引导的从句作为前提。
如:
My teacher said she had never been to London.
我老师说她从来没去过伦敦。名师点睛考点过关语法互动(十)┃ 时态和语态②表示从过去某一时刻开始一直延续到另一过去时刻的动
词或状态。跟现在完成时一样,也常与 how long, for
three days, before 等表示一段时间的状语连用。如:
When Jack arrived, he learned Mary _______________
for almost an hour.
当杰克到达时,他得知玛丽已经离开差不多一个小时了。had been away 名师点睛考点过关语法互动(十)┃ 时态和语态考点二 动词的被动语态(1)构成:名师点睛考点过关语法互动(十)┃ 时态和语态名师点睛考点过关语法互动(十)┃ 时态和语态(2)用法:
①不知道动作的执行者或没必要说明动作的执行者,用被动语态;
②强调动作的承受者时,用被动语态。
(3)没有被动语态的动词:
①不及物动词及短语,如:happen, take place 等。如:
An accident happened last night.
昨晚发生了一起交通事故。
②表所属关系的动词及短语。如:
The car belongs to Mr.Wang. 那辆车是王先生的。
③连系动词,如feel, sound, taste, smell等。如:
That sounds like a good idea.
那听起来是个好主意。名师点睛考点过关语法互动(十)┃ 时态和语态考 点 过 关Ⅰ.用括号中所给单词的适当形式填空
1.My father always ________ (ride )his bike to work.
2.This kind of watch ________ (sell) well.
3.They _____________ (have )dinner at this time
yesterday.
4.Our classroom _____________ (clean) every day.
5.Mr.Green ______________ (teach) us English since three
years ago.
6.—This is an old building.
—Do you know when it _____________(build)?rides sells were having is cleaned has taught was built名师点睛考点过关语法互动(十)┃ 时态和语态Ⅱ.根据句意及汉语提示完成句子
1.John found the ground was all white when he
____________(醒来).
2.Don't be afraid of making mistakes in class.
You won't be ____________(嘲笑).
3.Jeff __________________(捎信)for Jenny when she
was away from home.
4.Jack always __________________(开玩笑) his
friends.woke up laughed at took a message plays jokes on 名师点睛考点过关语法互动(十)┃ 时态和语态5.[2013·南充] You have to be 18 years old before
you are __________(允许) to drive a car.
6.Listen! Someone is ________________(敲门) the door.
7.Unluckily,he ____________(摔下)his bike while he
was talking to his friend in the street.
8.I have ____________(离开) from my hometown for a
long time. I really miss it.allowed knocking at/on fell off been away 名师点睛考点过关