发布时间:2018/02/02 16:14:57 阅读量:4388
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),etc.
3. 基本结构:①was/were/going to + do;②would + do.
否定形式:①was/were/not + going to + do;②would + not + do.
一般疑问句:①was或were放于句首;②would 提到句首。
4. 用法
1) “would+动词原形”常表示主观意愿的将来。例如:
He said he would come to see me.
他说他要来看我。
He told me he would go to Beijing.
他告诉我他将去北京。
2) “was/ were+going to+动词原形”常表示按计划或安排即将发生的事。例如:
She said she was going to start off at once.
她说她将立即出发。
I was told that he was going to return home.
有人告诉我他准备回家。
备考干货:2018年普通专升本英语时态知识总结!
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。例如:
It seemed as if it was going to rain.
看来好像要下雨。
3) come, go, leave, arrive, start等瞬时动词动词可用过去进行时表示过去将来的含义。例如:
He said the train was leaving at six the next morning.
他说火车将于第二天早晨六点离开。
She told me she was coming to see me.
她告诉我她要来看我。
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, etc.
3. 基本结构:have/has + done
否定形式:have/has + not +done.
一般疑问句:have或has。
4. since的三种用法
1) since +过去一个时间点(如具体的年、月、日期、钟点、1980, last month, half past six)。
例如:I have been here since 1989. 1989起,我一直在这儿。
2) since +一段时间+ ago。
例如:I have been here since five months ago. 我在这儿,已经有五个月了。
3) since +从句(一般过去时)。
例如:Great changes have taken place since you left. 你走后,变化可大了。
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长度。
例如:I have lived here for more than twenty years.我住在这儿二十多年了。
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。)