It用法详解.ppt

It的用法
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It 用法归纳
一, 指代it
二, 形式it
三, 强调it
四, 含有it的句型
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一,指代it
用来指代上文提到的事物。
1.----Pass me your nose. ----- Here it is .
you do and say, ask yourself whether it is ed by others.
Olympic Game will be held in Beijing in 2008. It makes the Chinese proud.
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2. 表示时间,天气, 距离,温度等。
It’s 10:08
was cold yesterday.
may be 25 kms from here to the town.
was very quiet in the café.
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3. 、作为人称代词,it可以用来指东西、动物、婴儿和未确定身份的人。
's my left eye? Have you seen it?
cat is in the garden, isn't it?
baby cried because it is hungry.
4. (有人在敲门)Who is it?
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It’s lovely
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It weighs only 3 kilos.
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It’s a large sum of money.
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:1.--- Who is it? ---It’s me. face lighted when she saw who it was. 
: doesn’t matter. is a shame, isn’t it?
you are going to be married this time?When is it?
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特别注意: it, one和that作替代词的用法及区别   1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。  The news that they failed their driving test 
upset  him, ________?  
A. did they B. didn\‘t they
C. did it D. didn\’t it
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