It is fine (rainy, windy, etc.).
It is noon.
It is a half hour's walk to the factory.
It is eighteen square metres in area.
What does it matter?
(三)作强调词,构成强调结构
用以帮助改变句子结构,使句子的某一成分受到强调。"It is (was) + 所强调的成分 + that (who) + 其它成分。"在这个句型中,it本身没有词义。详见"一、强调句"。
(四)引导词it作形式主语(宾语)
为了使句子平衡,常采用形式主语(或宾语)it ,而把真正的主语(或宾语)置于句子后面。通常引导词it与它所代替的句子成分中间要夹有某些词。
e.g. It takes half an hour to go there on foot.(It与to go there on foot之间夹有takes half an hour四个词)
We thought it strange that Mr Smith did not come last night. (it与that从句中间夹有 strange)
但有时it与所替代部分之间并不夹有其它词。
e.g. You may depend on it that they will support you.(因为介词on之后一般不直接接that引导的宾语从句。注意:it不是多余的,不能当作错句)
练习一、强调句、It的用法
1. My bike is missing. I can't find ____ anywhere.
A. one B. ones C. it D. that
2. ---- Who's that? ---- ____ Professor Li.
A. That's B. It's C. He's D. This's
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