This is the third teaching period of this unit. To test whether the students have grasped the important and difficult language points they learned in the last period, the teacher should first offer them some revision exercises. The pattern “Not all. . . ”or “All. . . not. . . ” is a bit important, so special exercises should be designed.

This teaching period mainly deals with the grammar:the Attributive Clause introduced by that, which, who and whose. Firstly, the teacher can ask the students to read the text A Night the Earth Didn’t Sleep,