人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教案

2019新人教高中英语选择性必修三

Unit 3 Environmental Protection

Reading and Thinking公开课教案

Teaching aims:

1.Enable students to figure out the main structure of the expository essay by classifying and organising the key information.

2.Guide students to learn about the causes and the consequences of climate change.

3.Help students to talk about who should take responsibility for dealing with climate change.

4.Know the measures to change it.

Teaching key points:

1.    Help students to figure out the main structure of the expository essay by classifying and organising the key information.
2.    Help students to learn about the causes and the consequences of climate change.

Teaching difficult points:

1.    Identify who should take responsibility for dealing with climate change.
2.    Know the measures to dealing with climate change.

Teaching procedures:

StepⅠDiscuss the picture

View the picture of polar bear and answer the question below.

What happened to the polar bear?

Suggested answers:

The polar bear is dead.

StepⅡ While-reading

Activity 1　Predict what will be talked about in the passage

Before your reading,list details in the first two columns.Fill in the last column after reading.

Look at the title “Climate Change Requires the World’s Attention” and the two pictures on Page 26,answer the following questions.

1.Where would you most likely find this text?

2.What information can you get from the title?

3.What do you think will be talked about?

Suggested answers:

Activity 1

1.In a newspaper.

2.Climate change requires more attention.

3.The text will talk about the climate change and environmental problems.

Activity 2　Reading for the structure

Skim the text and find the main idea of each paragraph.

Suggested answers:

Paragraph 1 & Paragraph 2:A

Paragraph 3:D

Paragraph 4:B

Paragraph 5:C

Activity 3　Focus on the “evidence”

Read Paragraph 1 & Paragraph 2 and answer the question.

Who:global surface temperature

1.What:happened to the global surface temperature?

Read the Paragraph 1 &Paragraph 2 again and answer the questions.

Who:polar bear

2.What:happened to the polar bear?

3.Why:did the writer write about it?

Suggested answers:

1.There is little doubt that Earth is getting warmer and warmer.

2.The bear appeared to have starved and died.

3.The answers vary.

Activity 4　Focus on the “causes”

Read Paragraph 3 and answer the questions with mind maps.

1.Why is the natural greenhouse effect important and necessary?

2.What are the consequences of high greenhouse gas emissions?

Suggested answers:

(1)keeping Earth climate warm and habitable

(2)man-made greenhouse

(3)causing Earth’s surface temperature to rise quickly if too much heat energy is trapped

Activity 5　Focus on the “consequences”

Read Paragraph 4 carefully and fill in the mind maps.

The rise in temperature:

　　　　　 weather/natural 　　　　　 

extreme 　　　　　,heat 　　　　　 

serious 　　　　　,costing 　　　　　,economic 　　　　　 

Suggested answers:

rainstorms weather/natural disasters

extreme rainstorms,heat waves

serious damage,costing human lives,economic losses 

Activity 6　Focus on the “measures”

Read Paragraph 5 carefully and find out the measures.

measures

Suggested answers:

Governments need to consider making policies and taking appropriate actions and measures to reduce gas emissions.

We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide.

Activity 7　Focus on the “expository”

Paragraph 1 & Paragraph 2:

Paragraph 3:

Paragraph 4:

Paragraph 5:

Suggested answers:

Paragraph 1 & Paragraph 2:evidence

Paragraph 3:causes

Paragraph 4:consequences

Paragraph 5:measures

Step Ⅲ Post-reading—Critical Thinking

Discuss these questions in groups.

1.Do you think climate change is the result of human activity?Give your reasons.

2.Who do you think should take responsibility for dealing with climate change?

3.What can we do?

Suggested answers:

1.The answers vary.

2.People.

3.The answers vary.

StepⅣ Homework

Finish what you have learnt in the last column of KWL chart.

Suggested answer:

I have learnt many useful words and expressions to describe the climate change and I will find out more measures to protect environment as individuals.