外研版英语九年级上册六大时态复习 学习案

　 外研版九年级上册六大时态复习
　一、一般现在时
1. 用法：
表示经常性或习惯性的动作或存在的状态。与often, always, usually, sometimes, once a week, every day等表示频度的副词和时间状语连用。
（2）表示客观事实或普遍真理。
（3）在时间、条件等状语从句中，用现在时表示将来。
2. 时间状语：always, usually, often, sometimes, every week (day, year, month...), once a week, on Sundays,
3. 基本结构：动词 原形 （如主语为第三人称单数，动词上要加（e）s）
4. 否定形式：am/is/are+not;此时态的谓语动词若为行为动词，则在其前加don＇t,如主语为第三人称单数，则用doesn＇t，通常还原行为动词。
5. 一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。
6. 例句：It seldom snows here.
He is always ready to help others.
Action speaks louder than words.
讲透例题
1、—What does your mother do to keep healthy, Tim
— She usually ________.
A. swim B. swims C. is swimming D. to swim
2、---What‘s his brother
—He is a teacher. He ______maths at a school.
A.taught B.has taught C.teaches D.will teach
答案：1.B 2. C
二、一般过去时
1 .用法：
表示过去某时间发生的动作或存在的状态。
表示过去的习惯或经常发生的动作。
2.时间状语：ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
3.基本结构：be动词；行为动词过去式源:]
4.否定形式：was/were+not;在行为动词前加didn＇t，同时还原行为动词。
5.一般疑问句：was或were放于句首；用助动词do的过去式did 提问，同时还原行为动词。
6.例句：She often came to help us in those days.
I didn＇t know you were so busy.
讲透例题
例1　I don't remember when and where I _____ this umbrella.
A.buy B.have bought C.will buy D.bought
例2 --- When ______ you ______ here
--- Two days ago.
A. did;come B. have; come C. will; come D. do; come
答案：1.D 2. A
三、一般将来时
1. 用法
(1)表示将来发生的动作或存在的状态，其构成是will+动词原形。常与表示将来的时间状语连用。如：tomorrow, next week, in a few days, next Sunday。
be going to +动词原形。表示计划、打算做某事，表示已决定很可能发生的事。
Be doing表示将来
时间状语：tomorrow, soon, next week/ month/ year..., in a week, in 2030, in + 一段时间, one day, in the (near) future, etc
基本结构：(1) will 或 shall + 动词原形 (2) be going to +动词原形
go , come , start, move, sail, leave, arrive ,stay 等可用进行时态表示按计划即将发生的动作。例如： I’m leaving for Beijing. 我要离开北京了。
在时间或条件句中, 用现在时表示将来。例如： When Bill comes （不是will come）, ask him to wait for me. 比尔来后，让他等我。
讲透例题
例1　—Where is your brother
—He has gone to Beijing. He back in three days.
A. will come B. comes C. has come D. came
例2 If I have enough money, I ______ a school bus to help the poor children go to school.
A. buy B. bought C. will buy
答案：1.A 2. C
四、现在进行时
1. 用法：
(1)表示此时此刻正在进行的动作。表示现阶段正在进行的动作或持续的状态。
(2)Go,leave,arrive,start等动词的现在进行时表示将来。
2. 时间状语： now, right now, at present, at this time, at the/this moment, these days, look! Listen!, etc
3. 基本结构：am/ is/ are + v.-ing
4. 表示渐变，这样的动词有：get, grow, become, turn, run, go, begin等。例如： The leaves are turning red. 叶子在变红。 It's getting warmer and warmer. 天越来越热了。
讲透例题
例1 —Could you help me do the dishes
—Sorry, my sister______for me outside now.
A. waits B. will wait C. is waiting D. was waiting
例2 Look, some people______ photos on the beach.
A. took B. takes C. are taking
答案：1.C 2. C
五、过去进行时
1. 概念：表示过去某时正在进行的状态或动作。
2. 过去进行时的主要用法是描述一件事发生的背景；一个长动作延续的时候，另一个短动作发生。
3）. 常用的时间状语有this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while等。例如：
My brother fell while he was riding his bicycle and hurt himself. 我兄弟骑车时摔了下来，受了伤。
It was raining when they left the station. 他们离开车站时，正下着雨。
讲透例题
例1 Last night, I______computer games when my mother went into my bedroom. You can’t imagine how embarrassed I was then.
A. played B. was playing C. have played
例2 —I called you this morning, but nobody answered it.
—Oh, we _____ some running in the park.
A. are doing B. were doing C. have done D. did
答案：1.B 2. B
六、现在完成时
3.基本结构：have（has） +过去分词
4. 重点： 比较一般过去时与现在完成时
1）一般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。
2）一般过去时常与具体的时间状语连用，而现在完成时通常与模糊的时间状语连用，或无时间状语。 一般过去时的时间状语：yesterday, last week，…ago, in1980, in October, just now等，皆为具体的时间状语。 现在完成时的时间状语：for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always等，皆不确定的时间状语。共同的时间状语：this morning, tonight, this April, now, already, recently, lately 等。
3）现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如live, teach, learn, work, study, know.。 一般过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。例如：
I saw this film yesterday. （强调看的动作发生过了）
I have seen this film. （强调对现在的影响，电影的内容已经知道了）
5.用于现在完成时的句型
1）It is the first / second time.... that…结构中的从句部分，用现在完成时。例如：
It is the first time that I have visited the city. 这是我第一次访问这城市。
This is the first time （that） I've heard him sing. 这是我第一次听他唱歌。
注意：It was the third time that the boy had been late.
This is +形容词最高级+that…结构，that 从句要用现在完成时。例如：
This is the best film that I've （ever） seen. 这是我看过的最好的电影。
讲透例题
例1 Our math teacher _____ in our school for 20 years and he ______ here when he was 25 years old.
A . taught; comes B. taught; came C. has taught; came
例2 —Could you tell me where Jim is I want to return the bicycle to him.
—Oh, he ________ the library. He will be back soon.
A. goes to B. has gone to C. has been to D. went to
答案：1.C 2. B
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