Unit4. The Earth Is Becoming Warmer-But Does it Matter 教案

Teaching Aims:

1. Improve the students' reading ability

2. Having concept of "greenhouse gases","greenhouse effect""global warming"

3. Know scientists' attitude towards "global warming"

4. Can write down the advantages as well as disadvantages of "global warming" and can express them to the whole class

Teaching Important and Difficult Points:

1. How to Improve the students' reading ability

2. How to guide students to write and to express his or her attitude in own words

Emotional Aims:

Enable the students to know the importance of protecting earth

Media preparation:

Blackboards, PPT, video player, Mp3 player

Teaching Process:

Step1. Greetings

Greet the whole class

Step2. Lead-in

Show three groups of pictures, which are about shallow understanding of "global warming", and let them choose the right picture of each group.