作业帮 > 英语 > 作业

过去将来时用法

来源:学生作业帮 编辑:搜狗做题网作业帮 分类:英语作业 时间:2024/07/07 14:14:37
过去将来时用法
过去将来时用法
过去将来时表示在过去某个时间看来将要发生的动作或存在的状态.即:过去将来时是“立足过去,着眼未来”的一种时态,常用于宾语从句中.判断这种时态的依据是:要有表示过去的“动作”,而不是时间.如:
I heard that they were going to return to Shanghai soon.
我听说他们不久要回到上海.
【构成】
①由助动词“would/should+动词原形”构成,should主要用于主语是第一人称时;would可用于各种人称.如:
Whenever we had trouble,he would come to help us.
不论何时我们遇到困难,他总会给予帮助.
②由“was/were going to+动词原形”构成.如:
No one knew when he was going to come.
没有人知道他什么时候来.
【注意】
①表示“往来”时空变化的短暂性动词如“go,come,arrive,travel,start,begin,leave,move,fly,return,take off”等,通常用过去进行时来表示过去将来.如:
He said they were leaving at seven.
他说他们将于七点动身.
一、过去将来时的含义
过去将来时表示在过去某个时间看来将要发生的动作或存在的状态.过去将来时常用于宾语从句和间接引语中.例如:
I didn’t know if he would come.
我不知道他是否会来.
They never knew that population would become a big problem.
他们从来都不知道人口问题将会成为一个大问题.
She didn’t tell me where she would go.
她没有告诉我她要去哪儿.
Betty said she would visit the Great Wall next Saturday.
贝蒂说下周六她要去参观长城.
二、过去将来时的表达法
(一)“would+动词原形”.常表示按计划或安排即将发生的事.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.
(二)“was/ were+going to+动词原形”.常可用来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.
此结构还可表示根据当时情况判断有可能但不一定会发生某事.例如:
It seemed as if it was going to rain.
看来好像要下雨.
(三)come,go,leave,arrive,start等动词可用过去进行时代替过去将来时.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.
(四)条件状语从句和时间状语从句中须用一般过去时代替过去将来时.例如:
I didn’t know when she would come,but when she came I would let you know.
我不知道她什么时候来,但她来了我会告诉你.
The teacher said that it would be very difficult to make progress if I didn’t work hard.
老师说,如果我不努力学习的话,就很难取得进步.