概要：3. The second listeningA. Listening and explanationPlay the tape again.Let the Ss listen the second time. While listening, I explain the language points. Make sure the Ss understand it.a.the other day = a few days agob.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 th
高中英语说课稿：《Unit 12 Mainly Revision Lesson 45》优秀说课稿范例,标签：说课稿,http://www.85jc.com3. The second listening
A. Listening and explanation
Play the tape again.Let the Ss listen the second time. While listening, I explain the language points. Make sure the Ss understand it.
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 5 . Practice and deep understanding
a. Following
Let the Ss listen and follow the dialogue,then I ask a few pairs to act the scene in front of the class.
b. Question
Why should Kate get a large tank to keep the fish in?
(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. Moral lessons
Keeping fish or birds or keeping any other animal can bring us happiness and enjoyment. It can cultivate our healthy hobby. So we must love these animals. They are our good friends. We are living on the earth happily together.
If the animals die out, it will cause dying out of human being, like the dying out of dinosaur. I mean disappear throughly from the earth. Not only the mankind but also everything in the world. Much more, the earth will also be destroyed. what a horrible thing! We must protect our environments and keep the balance of the nature.
Step 6 Practice Part 2
Ask the students to make similar dialogues to practise making suggestions and replying, using the phrases given. Pay particular attention to sentence stress and intonation.
Slide 4
Situation: One of your friends wants to keep fish, he/she wants to buy some golden fish and a fish tank. He/she would like to ask for advice from you. Now you'd like to advise him/her what to do.
Model:
A: Excuse me , would you please tell me what you are going to do?
B: I want to keep fish. I'd like to buy some golden fish. What should I do?
A: Oh, I suggest that you'd better go to the market. They are much cheaper there.
B: That's a good idea. But where should I keep them?
A: You should keep them in a large tank.
B: What size tank should I get?
A: You need to buy one about 30 cm by 30 cm by 50 cm.
B: Is that Ok?
A: You ought to put some large rocks in the tank.
B: Are they necessary?
A: You'd better put some underwater plants in it.
B:Why is that?
A: Because they keep the water clean and make the tank look more beautiful.
B: Thanks.
A: You're welcome.
Then get the Ss to work in pairs. Get them to act their dialogues out.'
Step 7 Consolidation( dialogue Production)
Get several pairs of Ss to act out their dialogue about the bird in front of the class.
Slide 5
Situation: One of your classmates wants to keep birds, he/she wants to buy some birds and builds a bird cage as big as 4m by 2m by 2m. He/she would like to ask for advice from you. Now you'd like to advise him/her what to do.
Step 7 Workbook
Finish Exx 1 and 3 orally, do Ex 2 as written work.
Ex. 1 revises the Object Clause. When transforming the structures,
pay attention to the change of the verb tenses, personal pronouns
and word order. After doing the exercises orally in class, ask the Ss to do it as written work.
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