概要：Ss:Yes.T:What about other questions?S7:I think plankton,sharks and whales are examples of species in the ocean.S8:The answer to the second one is that the earth looks like an ocean planet.T:You are quite right.Any volunteers?S9:Dear teacher.Can you tell us the meaning of the special air-conditioner—the ocean?T:Maybe it means that there are some similarities between air-conditioner and the ocean.S9:Thank you.I got it.T:Then,who can answer the question?S10:Because the ocean can
高二 Unit13 教案（Period 2）,标签：高二英语选修7教案,高二英语下册教案,http://www.67jx.comSs:Yes.
T:What about other questions?
S7:I think plankton,sharks and whales are examples of species in the ocean.
S8:The answer to the second one is that the earth looks like an ocean planet.
T:You are quite right.Any volunteers?
S9:Dear teacher.Can you tell us the meaning of the special air-conditioner—the ocean?
T:Maybe it means that there are some similarities between air-conditioner and the ocean.
S9:Thank you.I got it.
T:Then,who can answer the question?
S10:Because the ocean can keep the temperature of the earth steady,some students compare the ocean to a special air-conditioning.I think the ocean keeps the temperature of the earth steady by absorbing and releasing heat.
T:Well done.There is only one question left.Who wants to try?(Nobody answers the question.)
T:Do you think it is a question that the text can’t answer?
Ss:Yeah.We think so.
T:OK.Maybe you are right.But I want to know the reason why you think the passage can’t answer the third question.
Ss:Because there is not any information about the different parts of the ocean.
T:Then,are there any questions you would need to add to “cover” all the information in the text?
S11:I have a question.Why is the water in the ocean always moving?
S12:Since changes in salinity and temperature affect water’s density,the water in the ocean is always moving.
CStep Ⅲ Further Understanding and Language Study
T:Well done.I think you are very familiar with the passage.In the passage there are some words and expressions we should master.Now let’s look at the screen.I will give you some explanations about the words and expressions.
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