2016-2017学年 人教版 必修三 Unit 4 Astronomy :the science of the stars grammar课件 (4)
2016-2017学年 人教版 必修三  Unit 4 Astronomy :the science of the stars grammar课件 (4)第2页

Grammar

3. To find your way can be a problem.

What part does the underlined part serve as in each sentence?

2. Smoking is bad for you.

1. You are a student.

4. “How do you do?” is a greeting.

5 .What she said is not yet known.

6. That we shall be late is certain.

7. It is certain that we shall be late.

subject

A sentence serving as subject is called Subject Clause.