英语：Unit4 Global warming Period 4优秀教案(新人教版选修6)

英语：Unit4 Global warming Period 4•优秀教案（新人教版选修6）

Period 4 Listening and Speaking

整体设计

教学内容分析

The emphasis of this period will be placed on listening and speaking.There are altogether two

texts for the students to listen to in this period：one is in the Student's Book and the other is in the

Workbook.The first one(on Page 31，Listening and speaking)is a conversation between two people，Li Bin and Professor Keeling，who is a scientist studying global warming.Professor Keeling has

been mentioned in the reading passage on Page 26.The listening text is a radio interview about the

use of fossil fuels and other sources of energy.It contains examples of the focus function for this

unit：agreement and disagreement.While listening to Part 1 for the first time the students are asked

to decide which statement in Exercise 1 Professor Keeling does NOT agree with.Then students are

required to listen to Part 1 again and tick the energy sources that are mentioned in the text.After

listening to Part 2 students are asked to list three things they can do to save energy.At last they

should also listen to Part 2 again and fill in the blanks in Exercise 4.

The second one(on Page 65，Listening Task)involves an environmental organization.A

student，Tom，is giving an oral presentation.As with most oral presentations that students give，Tom has some visual aids to go with his talk.Students will first be required to listen to the whole

speech to get the general idea，and then listen again and take some notes about some facts

mentioned in the speech.

三维目标设计

Knowledge and skills

1．To understand the meanings of the following key words and expressions while hearing

them in the tape：fossil fuels(化石燃料)，industrial societies(工业化社会)，concentrated(浓缩的)，radiation(辐射)，economical(经济的)，global community(地球村)，cigarette butts(烟蒂)，commitment(承诺)，inspiration(启发)．

2．To enable the students to understand the listening texts.

3．To help the students learn how to express agreement and disagreement.

Process and methods

1．Smoothing away language problems if any before listening.

Before asking the students to listen to the tape，help them to smooth away any language

problems such as new words and expressions that they may not understand while listening.

2．Listening for needed information.

Before asking the students to listen to the tape for the first time，give them one or two

questions about the general idea of the text so as to lead the students to concentrate only on the

needed information.Then ask them to listen to the tape for a second or even a third time for some

specific information by giving them some detailed questions to answer.

3．Speaking freely and making conversations.

At last the students may be asked to give their own points of view and attitudes towards the

subject mentioned in the text.

Emotion，attitude and value

1．To stimulate students' spirit of communication and cooperation.

2．To develop students' ability of enjoying language beauty.

教学重、难点

1．The understanding of the listening text.

2．The expressing of agreement and disagreement.

教学过程

Step 1 Revision

1．Retell the text on P26－P27.

2．Check the last period's homework and explain the difficulties.

Step 2 Pre－listening

1．Show the following pictures to the students and ask them to tell which kind of energy each

picture shows.

Picture 1 ____________ Picture 2 ____________

Picture 3 ____________ Picture 4 ____________

Suggested answers：

Picture 1：tide；Picture 2：wind power；Picture 3：solar energy；Picture 4：nuclear energy

2．Tell the students to think over and tell which energy is the most widely used now and what

are its advantages and disadvantages.

________________________________________________________________________

Suggested answers：

Solar energy is the most widely used now.Its advantages are environmentally friendly and renewable.Its disadvantage is that the equipment is too expensive.

Step 3 Listening

1．Listen to Part 1 of Text 1(Page 31)and finish the following exercises.

(1)How long does Professor Keeling think fossil fuels will last?

A．Several years. B．Only a few years. C．Centuries.

(2)What is the disadvantage of nuclear energy?

A．It is dangerous.

B．It produces carbon dioxide.

C．There isn't enough for it.

(3)What makes it impossible for us to use sun power at present?

A．The danger. B．The technology. C．Being clean.

Suggested answers：(1)C (2)A (3)B

2．Listen to Part 1 of Text 1 again(Page 31)and tick the energy sources that are

plete the notes on them.

Sources of energy Notes

Fossil fuels

Wind power

Energy from the sun

Nuclear power

Suggested answers：

Sources of energy Notes