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初三教案 第629期(2)
发布时间:2020-05-11

本期配套教案共2页:  1  2

TEENS初三19-20学年第44期总第629期教案二

作者:Chloe

Natural way to recycle plastic

Warm up

Look at the picture, and answer the following questions:

1. What is the girl doing?

2. Do you often use a lot of plastic products?

3. Is plastic bad for the environment?

4. Can plastic be recycled?

 

Pre-reading

Look at the title and the picture. What the article is about?

What does the phrase “natural way” refer to?

 

Fast reading

1. Read the passage and tell us what it is about?

It is about how scientists found a new enzyme that can break down plastic.

 

Careful reading

Paragraph 1

One way to protect our environment.

Ban thin plastic bags, tableware and other plastic items.

 

plastic           n. 塑料

pollution        n. 污染

deal with              处理

item               n. 物品,商品

 

Paragraph 2

A new way to protect our environment.

Researchers discovered a bacterial enzyme that can break down plastic.

 

solution         n. 解决办法

discover        v. 发现

break down   分解

chemical              adj. 化学的

chemistry      n. 化学

create           v. 创造

product               n. 产品

 

Paragraph 3

1. What is Paragraph 3 mainly about?

A. Where the scientists found the new enzyme.

B. How the scientists changed the enzyme’s genes.

C. How the scientists found the new enzyme.

D. When the scientists found the new enzyme.

 

uncover               v. 发现

publish          v. 出版

ton                      n. 吨,大量

a ton of               大量的

 

Paragraph 4

2. What does Alain Marty mean in Paragraph 4?

A. It was too late to find the new enzyme.

B. The new enzyme was forgotten by experts.

C. The forgot to change the enzyme’s genes.

D. Better late than never.

 

complete       adv. 完全地

turn out         结果

 

Paragraph 5

3. What is Paragraph 5 mainly about?

The enzyme especially breaks down PET.

 

4. What does the word “It” refer to?

It refers to the PET.

 

PET                     一种常见塑料

commonly     adv. 常见地

produce        v. 生产

bottle            n. 瓶子

 

Paragraph 6

5. What is Paragraph 6 mainly about?

What Carbios will do in the future.

 

6. What can we infer from the last paragraph?

A. Carbios will work together with companies that use a lot of plastic.

B. Carbios will keeping looking for a more efficient enzyme.

C. Carbios will turn its focus toward production.

D. Carbios will search for more companies like Pepsi to work with.

 

7. What do we know about the enzyme?

A. It is a type of bacteria.

B. It can break down plastic quickly.

C. It is the fifth most common type of bacteria.

D. It can break down PVC.

 

Post reading

A global sensitization is necessary to encourage people to choose recyclable products. It can only be achieved when people fully understand the danger of the situation. Plastics are dangerous even when they are said to be broken down. They don’t become any less toxic with break down; instead, it becomes easier for the toxicity to seep up the food chain.

 

What simple things can you do to protect the environment?

 

Words in use

Completion. Complete the sentences using the words in the box.

1. The city is looking into ways to reduce air ______.

2. The company has failed to come up with an effective ______.

3. It takes a long time to _________ prejudices (偏见).

4. The planet Pluto was ________ in 1930.

5. Plants ______ oxygen.

 

1. pollution    2. solution     3. break down      4. discovered              5. produce

 

本期配套教案共2页:  1  2

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