1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
use both sides of the paper
reduce waste
recycle boxes and bottles
New sources of energy
Step 2 Lead-in
Match the pictures with the sentences.(2a)
Wind can produce electricity in many places.
2.People use sunlight to produce electricity.
3.Sea waves are used for producing electricity.
4.People use hot water or steam from deep in the earth to produce electricity and heat for factories, schools and homes.
Match the words with the pictures on Page 48 (1b).
A. acid rain B. nuclear energy C. biogas
A
C
B
酸雨
Choose the right picture for each paragraph.
paragraph 2
paragraph 3
Paragraph 4
A
B
C
Step 3 Fast reading
Step 4 Careful reading
7
2
3
6
1