十种时态小结_时态小结
十种时态小结由刀豆文库小编整理,希望给你工作、学习、生活带来方便,猜你可能喜欢“时态小结”。
英语常见时态总结
韦丽娇一、一般现在时
1、用法(定义):
①经常性或习惯性动作。
如: He often speaks English.②现在特征或状态。
如:
He is ill today.③客观存在。
如: There is a book on the desk.The earth goes around the sun.④时间、条件从句中,代替一般将来时。如:If he comes, I will go to the park tomorrow.2、结构:
①be的第一人称单数为am, 第三人称为is, 其它人称为are。否定:am is are 后面加not.一般疑问句:Am Is Are …?
②第三人称单数形式为动词原形后+s/ es,其它人称用原形。
否定:主语(三单): doesn’t + 动词原形
一般疑问句: Does….?
.主语(非三单): don’t + 动词原形
一般疑问句:Do….? ③have第三人称单数为has 其余人称用have.二、一般过去时
定义:表示过去某个时间发生的动作,或存在的状态
结构:①be动词is, am→was are→were
②have/ has→had
③规则动词在动词原形后+ed
④否定句或疑问句didn't或did+动词原形
用法:①过去某个时间发生的动作或存在的状态
He went to the park yesterday.He was a teacher 3 years ago.②时间、条件从句中代替过去将来时
He said when she came he would tell her.三、一般将来时
结构:①shall, will+动词原形,第一人称I,we用shall,其它人称用will,时间状语tomorrow, next指客观上要发生的事
He will be twenty next month.②be going to+动原,主观打算要干的事
Who is going to speak first? 谁先发言?
四、过去将来时
结构:①should/ would+动词原形,should主语是第一人称
其它人称用would,在美国,所有人称均可用would.②were/ was going to+动词原形
用法:表示从过去某时看将要发生的事,时间状语为:
the next day… 多用于宾语从句中
He said he would be there soon.五、现在进行时
结构:be +v.-ing
用法:表示此时此刻或现阶段正在进行的动作:
①Were is your father?
He is cleaning his car over there? ②和look,listen连用 Look, they are watering the trees.③Let's…now
It's two, they are working on the farm.④动词go, come, leave, arrive, start的进行时表将来时,如:I’m coming.我就来。
⑤表示感觉、情感、看法、愿望、心理状态的动词hear, love, like, want, think, have没有进行时。
六、过去进行时
结构:was/ were+v.-ing
时间状语:yesterday, at 2 o'clock last Sunday, this time yesterday, from 8 to 9 last Wednesday 用法:①表示过去某时正在进行的动作
We were thinking about you just now.②当过去某一个动作发生时,另一个动作正在进行
When I cam in, he was cleaning the room.③go, come, leave, arrive, start等过去进行时,可表示过去将来。
七、将来进行时
表示将来某时或某段时间正在进行的动作 will/ would be+v.-ing
We shall be having a meeting at 8 tomorrow.明天8点我们将正在开会。
八、现在完成时
结构:have/ has+动词过去分词
①表示过去的动作对现在的影响,时间副词有already, yet, just, ever, never I have ever seen the film many times.②表示过去某时间开始一直延续到现在的动作,和far, since连用,动词必须是延续性动作
He has lived here since 1949.③含有终止或短暂意义的动词不能和for, since连用。
九、过去完成时
结构:had+过去分词
表示过去某一时刻以前已完成的动作
He said he had returned the book to the library.We know that they had arrived.By the end of last year we had learned 1000 words.过去进行时多用于宾语从句。
十、现在完成进行时
①表示动作从过去某一时间开始,一直延续到现在还有可能要延续下去。
They have been working for two hours.与现在完成时的区别:
①完成进行时更强调动作的延续性
②在没有时间状语时,完成进行时表示动作仍进行而完成时表示动作已完成。
have to do sth.不得不做某事
My bike doesn’t work;I have to walk to school.have to变否定和疑问需加助动词do/ does Do you have to go now?