III. Practice
T: Listen to the tape and then repeat it.
Look at Exercise one and two, let the students read the materials again, then check them.
T: Ask the students to make some sentences using “must” and “mustn't”.
For example: 1. Soldiers must obey orders.
2. Cars mustn't be parked here!
3. We mustn’t be late for school.
4. They must wait for Peter now.
IV. Presentation
T: Today we’ll learn adverbial clauses of time and condition.
First let’s do the match exercises.
Part One:
1. If you drive too fast, you may have an accident.
2. If you make a lot of noise, you may disturb others.
3. If there is a lot of traffic, you must wait.
4. If the traffic light is red, you must stop.
5. If you are not careful, a car may hit you.
Part Two:
1. When many passengers are waiting for a bus, you must stand in the line and wait for your turn.
2. When you get on the bus, you must buy a ticket.
3. When you get off the bus, you must look left and right.
4. When you are in the UK, you have to drive on the left.
5. Before you cross the street, you mustn’t push others.
V. Practice
Part One: the adverbial clause of condition: if
1. If he comes back, he may ring you up.
2. If you run too fast, you may fall.
3. If there are many mistakes in your exam papers, you must correct them carefully.
4. If you study hard, you may catch up with your classmates.
5. If there is a heavy rain, you d better not go out.
Part Two: the adverbial clauses of time: before, when, after
1. When you answer your teacher's questions, you must stand up.
2. Before you go abroad, you must get a visa.
3. When you are about sixty years old, you may stop work.
4. After you sit down at the table in a restaurant, you may look at the menu first.
5. When you feel terrible, you must go to see the doctor.
Part Three: Ask the students to make some sentences. Then let them read in class.
VI. Language Points
1. make a noise
(1)Don't make a noise in class.
(2) When you make so much noise, you may disturb others.
2. stand in line
(1) When you wait for a bus, you should stand in line.
(2) When you visit a museum, you must stand in line.
3. get on/get off
(1) When you get on the bus, you should give seats to the old.
(2) When you get off the bus, you must be more careful.
VII. Exercises in class
根据课文内容填入适当的词：
If you want to___1__a street, you must___2__the green light. You must not cross in front of the __3_. If the light is___4__, you should wait. It is___5___to wait and be___6__. If you want to 7__a bus, you must be more___8__. Because it is very___9__, cars or buses may___10__you.
Keys: 1. cross 2. wait for 3. traffic 4. yellow 5. better 6. safe 7. catch 8. careful 9. dangerous 10. hit
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