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初三教案 第625期(1)
发布时间:2020-04-13

本期配套教案共2页:  1  2

初三19-20学年第39期总第625期初三课件

作者:汤红梅

北京市东城区古城职业学校英语教师

 

Whales will live on

Warm up

How many sea animals can you name?

 

Pre-reading

1. What do you see in the picture?

They are whales.

2. Which adjectives would you use to describe them? 

big, long, dangerous, smart, scary

 

Predict

Look at the title, headings and the 1st paragraph.

1. What will be discussed in the text?

Chinese scientists found a whale fall for the first time in the South China Sea.

2. How do whales live on after death?

They provide food and shelter for other animals.

 

Fast reading

Choose the answer:

1. What is this story mainly about?

A. How whale falls occur.

B. A whale fall that was discovered in the South China Sea.

C. How marine ecosystems support life.

D. How to protect natural resources.

 

Careful reading

1. Why is a whale fall called an “oasis”?

A. Because it provides food to deep-sea animals.

B. Because it can remain under the sea for decades.

C. Because it changes the sea’s ecosystem.

D. Because it grows at the bottom of the ocean.

 

Structure

2. How does it exist in the deep sea?

The whale fall ecosystem can exist in the deep ocean because great pressure and cold temperatures.

 

3. Is it easy to find? Why?

The depth also makes is hard for scientists to discover them.

 

4. How many have been found?

Less than 50.

 

5. What can we learn from the whale falls?

We can better understand how marine ecosystems support life and how to protect biodiversity resources in the deep sea.

 

6. What do we know about the whale fall in the South China Sea?

A. It’s not the first time we’ve seen it.

B. Scientists found it at a depth of 4,500 meters.

C. This whale fall may have formed recently.

D. It has already become a skeleton.

7. It’s hard to find whale falls because of ____.

A. high water pressure

B. low temperatures

C. rapid decomposition

D. their great depth

 

Words in use

Complete the sentences using the words provided.

1. This species of bird now _________ only in Africa.

2. What ________ you from joining us last night?

3. They saw a heavy door at the ______.

4. A writer ________ characters and a plot.

5. Does the card ________ any other benefits?

 

答案:1.exists     2.prevented        3. bottom      4. creates      5. provide

 

Post reading

Whale falls have several different stages:

  1. The mobile-scavenger stage

  2. The enrichment-opportunist stage

3. The sulfophilic (or “sulfur-loving”) stage

Would you like to know more about whale falls? Try to find out more and share with us.

本期配套教案共2页:  1  2

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