文档介绍：中学英语语法分类总复习五 it的用法及系动词专练50题
1. The boy became fatter and fatter each day and _made his parents sad. A. which B. what C. he D. it
。it指代上文提到的事。另外,指代上文提到的情况,还可用that;指代下文的情况用this。
2. Someone is ringing the doorbell. Go and see __ is he he is is it it is
。it作人称代词,用来指代身份和性别等不明确的人。
3. In fact, ___is a hard job for the police to keep order in an important football match. A. this B. that C. there D. it
。it作形式主语,真正主语为不定式复合结构for sb. to do sth.
4. Tom’s mother kept telling him that he should work harder, but _didn’t help. A. he B. which C. she D. it
。it指代前一分句的内容。
5. Does___matter whether he can finish the job on time?
。it作形式主语,代替if从句所表达的内容。
6. ___used to be thought that the earth was square. A. He B. What C. It D. That
。it作形式主语,代替真正主语that从句。
7. I took ___for granted that he would believe in us. A. that B. the thing C. it D. this
。it作形式宾语,代替后面的that从句。
8. He lived in poverty, and he couldn’t help ___.
。can’t/couldn’t help (it)意为“是没有办法的事”,“控制不了”。
9. We had to be patient because it_some time _we got the full results. been; since been ; until ; after be ; before
。在it +be+一段时间+before/after/since句型中,before从句中的动作经过该段时间后才会实现;after从句中的动作完成后已经过去了一段时间;since从句中的动作完成后到现在已经有一段时间了。