中考英语8大时态用法详解
来源:学大教育 时间:2017-08-21 15:02:03
一般将来时
1. 概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。
2. 时间状语:tomorrow, next day (week, month, year), soon, in a few minutes, by the day after tomorrow等。
3. 基本结构:
(1)主语 + am / is / are / going to do sth;
(2)主语 + will do sth。
否定形式:
(1)主语 + am / is /are + not + going to do sth (2)主语 + will not(won’t) do sth
一般疑问句:
(1)am / is / are放于句首;(2)will置于句首。
4. will主要用于以下三个方面:
(1)表示主观意愿的将来。如:They will go to visit the factory tomorrow.
(2)表示不以人的意志为转移的客观的将来。
如:Today is Saturday. Tomorrow will be Sunday. He will be thirty years old this time next year.
(3)表示临时决定,通常用于对话中。 — Mary has been ill for a week — Oh, I didn’t know. I will go and see her.
5. be going to主要用于以下两个方面:
(1)表示事先经过考虑、打算、计划要做某事。如:Dad and I are going to watch an opera this afternoon. 今天下午我和爸爸打算去看歌剧。
(2)表示根据目前某种迹象判断,某事非常有可能发生,表示推测。
如:Look! There come the dark clouds. It is going to rain. 瞧!乌云密集。天要下雨了。
过去将来时
1. 概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。
2. 时间状语:the next day (morning, year), the following month (week)等。
3. 基本结构:
(1)主语 + was / were / going to do sth
(2)主语 + would do sth
否定形式:
(1)主语 + was / were / not + going to do sth
(2)主语 + would + not + do sth
一般疑问句:
(1)was或were放于句首; (2)would 提到句首。
4. 用法:
(1)“would + 动词原形”常表示主观意愿的将来。
如:He said he would come to see me. 他说他要来看我。
(2)“was / were + going to + 动词原形”常表示按计划或安排即将发生的事。
如:She said she was going to start off at once. I was told that he was going to return home.此结构还可表示根据某种迹象来看,很可能或即将发生的事情。
如:It seemed as if it was going to rain. 看来好像要下雨。
(3)come,go,leave,arrive,start等瞬时动词可用过去进行时表示过去将来的含义。
如:He said the train was leaving at six the next morning.She told me she was coming to see me.
现在完成时
1. 概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始持续到现在并且有可能继续下去的动作或状态。
2. 时间状语:recently, lately, since, for, in the past few years等。
3. 基本结构:主语 + have / has + done +其他 否定形式:主语 + have / has + not +done +其他 一般疑问句:Have / Has +主语 + done +其他
4. since的三种用法:
(1) since +过去的一个时间点(如具体的年、月、日期、钟点、1980, last month, half past six)。如:I have been here since 1989.
(2) since +一段时间+ ago。 如:I have been here since five months ago.
(3)since +从句(一般过去时)。如:Great changes have taken place since you left.
比较since和for
since 用来说明动作起始时间,for用来说明动作延续时间的长度。 如:We haven’t had any guests since we moved in here.
I have lived here for more than twenty years. 注意:并非有for 作为时间状语的句子都用现在完成时。
I worked here for more than twenty years. (我现在已不在这里工作。)
过去完成时
1. 概念:以过去某个时间为参照,在此以前发生的动作或行为,或在过去某动作之前已完成的动作,即“过去的过去”。
2. 时间状语:before, by the end of last year(term, month)等。
3. 基本结构:主语 + had done +其他 否定形式:主语 + hadn’t done +其他 一般疑问句:had置于句首。
4. 用法:
(1)用于told, said, knew, heard, thought等动词后的宾语从句中。如:She said (that) she had never been to Paris.
(2)在过去不同时间发生的两个动作中,发生在先的动作用过去完成时;发生在后的动作用一般过去时。如:When the police arrived, the thieves had run away.
(3)表示意向的动词,如hope, wish, expect, think, intend, mean, suppose等用过去完成时表示“原本······,未能······”。如:We had hoped that you would come, but you didn’t.注意: had hardly… when ... 刚······就······。如:I had hardly opened the door when he hit me. 我刚打开门,他就打了我。 had no sooner…than 刚······就······。如:He had no sooner bought the car than he sold it. 他刚买了这辆车,转眼又卖了。
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