It用法小结及练习
- 格式：doc
- 大小：57.00 KB
- 文档页数：4
It用法小结及练习
一． 作代词（指天气、温度、时间、距离等或代替前文提到过的事物。）
1. 今天天气晴朗。
2. 今天是星期二。
3. 学校到我家10分钟的步行路程。
4.我有一本字典，它使我聪明。
5 我没有字典，你能借我一本吗？
二. 作形式主语
1. Playing computer games all day long is a waste of time.
=It is a waste of time playing computer games all day long.
2. To learn English well is important for us.
=It is important for us to learn English well.
3. That we students should be kind to others is necessary.
=It is necessary that we students should be kind to others.
总结：it还常用于以下句型中
It is strange/ important/necessary that…(should) do…
It is no use /no good /a waste of time doing sth.
It is/was thought （believed，said，reported）that sb / sth do/ have done…
= sb/sth is/was said to do/ have done…
Exercises1:
1).对我们来说学一门外语是必要的。
2).经常帮助同学她真是太好了。
3).据说杰克已经通过了考试。
Exercises2:
1). Aids is said __ the biggest health challenge to both men and women in that area in the
past few years.
A. that it is B. to be
C. that it has been D. to have been
It is said that Aids has been the biggest health challenge to both men and women in that area
in the past few years.
2).The flu is believed _______ by viruses(病毒)that like to reproduce in the cells inside the
human nose and throat.
A. causing B. being caused C. to be caused D. to have caused
3). ---Is Bob still performing?
---No. He is said __ the stage already as he has become an official.
A. to have left B. to leave
C. to have been left D. to be left
句型总结：It is said that Aids has been the biggest health challenge to…
It is believed that the flu is caused by viruses that---
It is said that he has left the stage already ---
三． it 作形式宾语，常用句型如下：
(think, feel, make, find, believe, consider…) + it + adj./ n. to do/ doing / that…
1) He feels it his duty to help others.
2) We found it impossible to finish the work in a day.
3) We thought it no good working all the time.
4) He made it clear that we shouldn’t break the school rules.
Exercises
1.她发现用英语回答这问题很难。
2.我认为他不去上学是错误的。
四．It 用于强调句：It is/was +(被强调部分)+ that ---.
We read English in the classroom in the morning.
1. It is we that/ who read English in the classroom in the morning.
2. It was English that we read in the classroom in the morning.
3. It is in the classroom that we read English in the morning.
4. It is in the morning that we read English in the classroom.
5. Where is it that we read English in the morning?
Exercises:
1）.直到他完成作业他才出去散步.
2）直到半夜他才停止工作。
四. it 固定短语和常用句型
1. Believe it or not.
2. Don’t mention it.
3. It’s my pleasure.
4. Take it easy.
5. It’s up to you.
6. It all depends.
7. Forget it.
练习
一．单项选择
1. Was it during the Second World War_____ he died?
A. that B. while C. in which D. then
2. Is ____ necessary to complete the design before National Day?
A. this B. that C. it D. he
3. I don't think ____ possible to master a foreign language without much memory work. A. this B. that C. its D. it
4.Does ______ matter if he can't finish the job on time?
A. this B. that C. he D. it
5. It was not _____ she took off her glasses _____ I realized she was a famous film star.
A. when , that B. until , that C. until , that D. when , then
6. I was disappointed with the film. I had expected ______ to be much better.
A. that B. this C. one D. it
7. It was not until 1920 ______ regular radio broadcasts began.
A. while B. which C. that D. since
8. ______is a fact that English is being accepted as an international language.
A. There B. This C. That D. It
9. It was only when I reread this poems recently _____ I began to appreciate their beauty.
A. until B. that C. then D. so
10. I hate _____when people talk with their mouths full.
A. it B. that C .these D. them
11. It is the ability to do the job _____ matters not where you come from or what you are.
A. one B. that C .what D. it
12.I like ___ in the autumn when the weather is clear and bright.
A. this B. that C. it D. one
13. —Do you like ___ here?
—Oh, yes. The air, the weather, the way of life. Everything is so nice.
A. this B. These C. That D. it
14. We needed a new cupboard for the kitchen. So Peter made ___ from some wood.
A. it B. One C. Himself D. another
