英语语法：it表示天气、时间、距离

前面我们学习了英语语法：主语用宾格、宾格的用法、比较结构中用宾格、宾格的用法、it的用法、it的用法(2)

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 it的用法

3）作无人称动词的主语，表示天气、时间、距离。例如：

It rains continually in Shanghai in May.

上海的五月常下雨。

结构分析：It是主语，rains是谓语，continually是状语，in Shanghai是地点状语，in May是时间状语。

It was midnight. There were few people in the street.

半夜了。街上行人稀少。

结构分析：It是主语，was是be动词，midnight是表语。There是表语，were是be动词，few people是主语，in the street是地点状语。

What a long way it is from Shanghai to New York!

上海到纽约的路有多远！

结构分析：What a long way是表语，it是主语，is是be动词，from Shanghai to New York是状语。

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20210723作业：1. 翻译，并进行句子结构、时态分析。

4）作先行词，引导非谓语动词或者从句。例如：

It is wrong to build a chemical factory here.

英语外刊，精读练习：1.句子结构、时态等分析；2.将英文译成中文。

“Everyone is affected in one way or another,” the WHO said in a statement at the start of a two-day meeting in Athens with health ministers from dozens of countries.【The Guardian】