Revision
1、Revise noun clauses.
2、Revise empty subject — “It”
Lead-in
Questions：When we ask sb. a question, we always expect the other to give you the answer that you want. For example, what do you expect or do you predict when you ask the fol lowing questions?
1、What’ s your name?
2、Where do you live / c ome from?
3、How did you come here?
4、Who is that old lady?
But sometimes you know the answer, yet you still ask the question, for you want to make sure whether your answer is right or wrong.
For example:
Who is that beautiful lady with Mr. Wang?
You know that she is probably Mrs. Wang, but you want to be sure. So you still ask the question.
