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《Learning about Language》最新PPT课件优质课下载
A. this B. that C. it D. these
2. ____ is our belief that improvements in health care will lead to a stronger, more prosperous economy. (浙江)
A. As B. ThatC. This D. It
3. The doctor advised Vera strongly that she should take a holiday, but ______ didn’t help. (全国卷III)
A. it B. she C. which D. he
4. I’d appreciate ______ if you would like to teach me how to use the computer. (山东)
A. thatB. it C. this D. you
II. 单句改错
下面的句子选自高考试题的改错部分，用你的火眼金睛把错误找出来吧！
1. You won’t find difficult to get to the city center. (全国卷IV)
2. I know there is not easy to be a teacher. (湖北)
3. This is not surprising that the Silver Ghost was regarded as “the best car in the world”.
find后加it
there → it
This → It
“It” can be used in the
subject or object position to stand for a clause ,
an infinitive or-ing form.
替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。
一、it用作形式主语
1. 替代作主语的动词不定式常见结构：”it”stands for an infinitive
（1）It be adj.（for sb.） to do sth.
（2）It be adj. (of sb. ) to do sth.
It's no good/use doing…