10) Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.

　　→Step 2 Warming up by a game

　　Let students work in pairs. One talks about the problems in his study or life. The other should give some advice or suggestions. Encourage them to use what-clauses as the subject.

　　Example:

　　S1: What I find difficult is. . . /What worries me is. . .

　　S2: What I would suggest is. . . /What I would advise is. . .

　　→Step 3 Discovering useful structures

　　Ask students to find out the sentences containing noun clauses as the subject in the reading passage and underline them. Then translate them into Chinese.

　　→Step 4 Learning the use of noun clauses as the subject

　　1. Ask students to turn to Page 92 and learn part 3 The Subject Clause by themselves.

　　2. Encourage them to ask as many questions as possible. Give them explanations if necessary.

　　3. Let them do some additional exercises.

　　4. Sum up.

　　→Step 5 Practice

　　Ask students to finish the following exercises within 10 minutes. Then check the answers with the whole class.

　　1. Exercises 2 and 3 in Discovering useful structures on Page 13.

　　2. Exercise 1 in Using structures on Page 64.

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