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人教2003课标版《Using LanguageⅠ》集体备课PPT课件优质课下载
三级：认识强调句型的特殊疑问句结构。
— Who is it?
— It’s me. You've helped me a lot; I'll never forget it.
用作人称代词，代替上文提到的人或事物。
Revision
Revision
— What’s this?
— It’s a computer.
— Whose book is that?
— It's hers.
用以代替指示代词this或that。
Revision
It’s time for lunch.
It’s raining hard.
It’s two miles from the school to our home.
表示时间、天气、距离等。
Revision
It is easy to buy a new radio.
It is no use telling him that.
It is said that he has left.
作形式主语, 代替由不定式、动名词或从句等表示的真正主语。
Revision
I feel it my duty to help him.
We thought it no use doing that.
I’ve made it clear that nobody is allowed to smoke here.