5. What should Kate put in the tank?
6. Why should Kate put a few large rocks in the tanks?
7. Why should Kate put some underwater plans in the tank?
Language points: (Show them on the screen using computer)
a. the other day = a few days ago
b They don't get enough air:
With a bowl, only a small surface area of the water is in contact with the air. So the water does not receive enough oxygen.
c 30 cm by 30 cm by 50 cm.
We describe two-dimensional and three-dimensional measurements using the word by. So the length of the tank is 50 cm, and the width and height both 30 cm.
e underwater plants:
These plants oxygenate the water and keep it clean.
d For one thing = one reason (for putting plants in the tank)
Step 4 . Dialogue Drill
1.In this step the students are required to practise the dialogue in pairs by reading the dialogue aloud. This step is employed to make the students grasp the useful phrases and sentences pattern for making suggestions and replying on the base of reading the dialogue fluently.
2.Let the students find out the expressions and sentence patterns for making suggestions and replying in this dialogue , in the meanwhile show these expressions and sentence patterns on the screen by computer one by one. This step is employed to give the students a deep understanding of those expressions.
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2013-08-16
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