past tense和past continue tense怎样区别啊

past tense和past continue tense怎样区别啊

Simple Past (过去式)

Simple Past Tense 是表达一个过去及已经结束的动作,而这个动作必须给予一个清楚的时间。简单而言,就是如果我们在知道时间的情况下,我们会用 Past Tense,相反如果不知道时间,我们会用 Present Perfect (continuous)Tense,或 Past Perfect (Continuous)Tense,视乎情况。

因为它的用途基本上得一个,所以我亦不会详谈(实在是没什麼可谈…)。不过它还有一个用法上要注意的地方:

Past Continuous Tense (过去进行式)

它的用法与 Present Continuous Tense 相同,只是时态是过去式罢了。

E.g.:I saw Miss Tam yesterday. She was waiting for a bus.

其次,当我们讲故事时,都会用 Past Continuous Tense 来描述故事背景,以其他 Past Tenses 来表达事件及动作。

E.g.:I was waiting for a bus. Suddenly I saw a black car stop in front of a bank. Some men got out of the car and rushed into the bank. Soon I heard…追问

While the pupils were doing classwork,their teacher returned.这个句子都没有知道时间,那为什麼要用Past continue tense呢?

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第1个回答  2013-03-02
过去时主要是指过去发生的动作或存在的状态
过去进行时表示过去某阶段正在进行的动作,通常有时间暗示。
I did my homework yesterday .
I was doing my homework this time yesterday .追问

While the pupils were doing classwork,their teacher returned.
这个句子都没有时间暗示,那为什麼要用Past continue tense呢?

追答

这里是属于时间状语从句中的过去进行时,当小学生们当时正在做功课的时候,老师返回来了。
while/when/as 引导的时间状语从句如果是长时间动词,主句是短时间动词,长时间动作用过去进行时,短动作用一般过去时。
While /When /As she was walking on the street, it began to rain.
还有这样的句子,
I was cooking when someone knocked at the door.

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