it 用法1
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文档简介
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详细讲解了it的用法，包括第四单元语法一并讲解
it有时并不指具体的东西，而泛指天气、时间、日期、距离、价值、度量、温度、环境等.
(1) ：
It is a lovely day, isn’t it?
It is a bit windy. (2). :
It was nearly midnight when she came back.
(3). :
It was very quiet in the café.
(4). ：
It is half an hour’s walk to the city centre from my home.
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压缩包内容：
详细讲解了it的用法，包括第四单元语法一并讲解
it有时并不指具体的东西，而泛指天气、时间、日期、距离、价值、度量、温度、环境等.
(1) ：
It is a lovely day, isn’t it?
It is a bit windy. (2). :
It was nearly midnight when she came back.
(3). :
It was very quiet in the café.
(4). ：
It is half an hour’s walk to the city centre from my home.
================================================
压缩包内容：