It+be+...表时间的句型用法

发布时间:2016-10-08

为了提高参加AEAS考试的同学的英语水平,澳大利亚中学入学考试网特别为同学们带来一些考试技巧。这次介绍的是It+be+...表时间的句型用法。

1. It's (high) time that...

该句型表示"该做……的时候了",其中that 从句谓语动词常用过去时态,但其含义并非指过去,而是指现在或将来。如:

I'm getting tired. It's time that we went to bed. 我累了。到我们睡觉的时间了。

It's high time that she washed the dress. 到她洗衣服的时候了。

2. It is / has been...since...

该句型表示"做某事有多长时间了"。since 后从句用过去时态。如:

It's a long time since I heard from Peter.好久没有收到彼得的来信了。

It's 0 years since Arabella left me.阿尔贝拉离开我已经0年了。

注:当it 后的be为was时,since后的从句要用过去完成时态。试

比较:

He said it was two years since he had joined the army.他说他当兵已有两年了。

It is two years since he joined the army.他当兵已两年了。

3. It / This is the first / second /third ... time that ...

该句型表示"这是第一/二/三……次做某事了",其中that 可省略,从句用现在完成时态。但是,当it后的be为was时,that 后从句应用过去完成时态。如:

It's the second time I have been here.这是我第二次到这里来了。

I was lucky because it was the third time that I had visited China.我很幸运,因为这是我第三次访问中国了。

4. It was long before ...

这个句型表示"很久以后才……",否定形式表示"不久就……"。如:

It was not long before they rose up and drove the enemy out.不久,他们就起义把敌人赶走了。

It was long before they returned.过了很久他们才回来。

5. It will be long before...

该句型的肯定形式表示"很久以后才……",否定形式表示"不久就……",这时before后从句用一般现在时表示将来时态。如:

It will be long before he goes to school.再过很久他才能上学。

It will not be long before he realizes that.不久他就会意识到这点的。

在平时我们要注意区分这些句型,特别注意连词、时态等。

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