考研英语语法谁讲得好
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2020-10-23 · 专注留学英语和高端商务英语培训。
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现在完成时用来表示之前已发生或完成的动作或状 态,其结果的确和现在有联系。动作或状态发生在过去 但它的影响现在还存在;也可表示持续到现在的动作或 状态。其构成: have (has) +过去分词。
2。将来完成时
1) 构成will / be going to do sth.
2) 概念
a. 状态完成:表示某事继续到将来某一时为止一直有的状态。
b. 动作完成:表示将来某一时或另一个将来的动作之前,已经完成的动作或一获得的经验。
They will have been married for 20 years by then.
You will have reached Shanghai by this time tomorrow.
3。过去进行时的基本用法
a.过去进行时表示过去某一时间正在进行的动作,常和表过去的时间状语连用,如:
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were expecting you yesterday.他们昨天一直在等待。
b.过去进行时可与soon, the next moment, in minutes, minutes later等时间状语连用,表示一个新的
动作刚刚开始。如:
Soon the whole town was talking about it.不久镇上的人就都谈论起这种事了。
c.过去进行时可用来申述原因或用作借口,这种用法常用在口语中。如:
-- Have you finished your homework, Mary?玛丽,你作业做完了吗?
-- No, I was helping my mother is the kitchen all day yesterday.还没呢,我昨天一天都帮妈妈在厨
房干活。
d.过去进行时可用来为一个后一系列动作的发生提供背景。如:
I hurt my leg when I was riding a bike.我在骑车时把腿摔坏了。
e.过去进行时可表示过去未曾实现的愿望或打算,这时be动词was/were要重读。如:
I was writing him a letter this morning and forgot all about it .我本该今天早上给他写信的
,后来全给忘了。
I was seeing her tomorrow. 我本来打算明天会见她。
He was watching the play yesterday, but he was too busy. 他昨天本来要看那场戏的,可是太忙
了。
过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at that
time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last
night / Sunday…),when sb. did sth等时间状语从句。
What were you doing at seven p.m. yesterday?昨天晚上七点你在干什么?
I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽
是在三年前,当时她在一家无线电商店工作。
I was cooking when she knocked at the door.她敲门时我正在做饭。
(3)一般过去时往往表示某一动作已经完成,而过去进行时却表示动作在持续或未完成。如:
I saw you while you were speaking to the teacher.你在和老师谈话时我看见了你。
注意:有的过去时间状语既可用于一般过去时,也可用于过去进行时,但含义不同。如:
She wrote a letter to her friend last night.她昨晚给她的朋友写了封信。(信写完了)
She was writing a letter to her friend last night.她昨晚一直在给她的朋友写信。(信不一定写完)
2。将来完成时
1) 构成will / be going to do sth.
2) 概念
a. 状态完成:表示某事继续到将来某一时为止一直有的状态。
b. 动作完成:表示将来某一时或另一个将来的动作之前,已经完成的动作或一获得的经验。
They will have been married for 20 years by then.
You will have reached Shanghai by this time tomorrow.
3。过去进行时的基本用法
a.过去进行时表示过去某一时间正在进行的动作,常和表过去的时间状语连用,如:
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were expecting you yesterday.他们昨天一直在等待。
b.过去进行时可与soon, the next moment, in minutes, minutes later等时间状语连用,表示一个新的
动作刚刚开始。如:
Soon the whole town was talking about it.不久镇上的人就都谈论起这种事了。
c.过去进行时可用来申述原因或用作借口,这种用法常用在口语中。如:
-- Have you finished your homework, Mary?玛丽,你作业做完了吗?
-- No, I was helping my mother is the kitchen all day yesterday.还没呢,我昨天一天都帮妈妈在厨
房干活。
d.过去进行时可用来为一个后一系列动作的发生提供背景。如:
I hurt my leg when I was riding a bike.我在骑车时把腿摔坏了。
e.过去进行时可表示过去未曾实现的愿望或打算,这时be动词was/were要重读。如:
I was writing him a letter this morning and forgot all about it .我本该今天早上给他写信的
,后来全给忘了。
I was seeing her tomorrow. 我本来打算明天会见她。
He was watching the play yesterday, but he was too busy. 他昨天本来要看那场戏的,可是太忙
了。
过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at that
time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last
night / Sunday…),when sb. did sth等时间状语从句。
What were you doing at seven p.m. yesterday?昨天晚上七点你在干什么?
I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽
是在三年前,当时她在一家无线电商店工作。
I was cooking when she knocked at the door.她敲门时我正在做饭。
(3)一般过去时往往表示某一动作已经完成,而过去进行时却表示动作在持续或未完成。如:
I saw you while you were speaking to the teacher.你在和老师谈话时我看见了你。
注意:有的过去时间状语既可用于一般过去时,也可用于过去进行时,但含义不同。如:
She wrote a letter to her friend last night.她昨晚给她的朋友写了封信。(信写完了)
She was writing a letter to her friend last night.她昨晚一直在给她的朋友写信。(信不一定写完)
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