Teaching Aims and Demands:
Word and expressions:
grey/ gray; brick; smooth; dull; drawing; ugly; drill; mass; masses of; Angkor Wat; Keep off
We’ll have to …
We should finish the floor now.
I think we should paint it white.
Is it necessary to …?
We must stop people walking on this floor until it’s firm.
I ought to do some studying.
Step I Introduction
Look at the picture. If they want to build a platform for school, what will they need and how can they do that?
(suggested answers: bricks, pieces of wood, drill, paint, brush……..)
Step III Listen and answer
Listen to the dialogue and then answer the question.
What are Tang Ling and Bob going to do with the wall?
Key : They’re going to paint the wall white, put up the notice saying “Keep off” and drill a hole for the electric wires.
Step III Reading carefully
Read the dialogue again and then answer the questions.
1.What will they do with the wall behind?
2.How long should they wait when the wall is painted?
3.What will they do to stop people walking on the floor?
4. Why will they drill a hole in the wall?
Step IV Dialogue Practice
Let the Ss read the dialogue in pairs. Then ask them to play in front of the class.
A: Do we need to buy some bricks . It’s not enough .
B: Ok. We can get some more tomorrow, At first We should finish the floor now. How do you think?
Step V Language points
Deal with the language points.
1．keep off 与 keep away
分析：这两个短语意思相近，只是off 与 away 词性不同。
off:为介词，后面可直接加名词。如：keep off the grass. Keep your hands off.请勿触摸。
away为副词，后面不可直接加名词。如：Run away. Break away with sb.与。。。断绝关系。
2．Ought to do :含有“按道理应做莫事”之意，否定式为ought not (oughtn’t)to,疑问式把ought to 移置句首。如：
I ought to do some studying, as I’ve got masses of work to do, but I think I’m too tired.
-----Ought he to go? ----- Yes, he ought.
3.mass(n):大量，大批。 a mass of masses of 许多，大量
I’ve a mass of things to see to this morning.今天上午我要处理很多事情。
The ship cut its way slowly through masses of ice.船划破大量冰层缓缓前进。
There was a mass of children in the yard.院子里有很多小孩。
4.dull:(of colour or surface)not bright, strong, or sharp.;(of weather, the sky, etc) cloudy; grey; dark..
It’s dull today; We shall have rain. A dress of some uninteresting dull color.
Step VI Practice
Practice the following in pairs.
Situation 1.If your bicycle can’t work , your good friend can help you . Make up a dialogue how to repair your bicycle?
Situation 2.You and monitor are going to build platform after class. Make up a dialogue how are you going to do with it?
Step VII Exercises
Choose the right words to fill in the blanks.
1.There _____ much noise in the hospital.
A. not ought to be B. ought not be
C. not ought be D. oughtn’t to be [B]
2.I’m sorry, I can’t go with you for I have _______ work to do.
A. mass of B. masses of
C. a large number of D. a good many [B]
3.After he watered the grass, he _______ a notice by its side,______ “Keep Off”.
A. put up, on which was written
B. put on, on which writing
C. fix up, by which was writing
D. fix on, in which wrote [A]
4.No one, whoever he is, is allowed to enter _____ the construction is completed.
A. after B. when C. until D. as soon as [C]
5.A: Harry! You ______ on the phone.
B: Oh, I’m coming. Thank you.
A. want B. are wanting C. are wanted D. are being wanted
1. Finish off the exercises in your Workbook.
2. Review Lesson 26.