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
People have cut down millions of trees. The rain takes away the earth. So forests have become ______.
deserts
[?dez?ts]
The ozone layer can protect the earth from harmful __________.
radiation
臭氧层
[?re?di?e??n]
辐射
Carbon dioxide(CO2 ) formed a ______ around the earth and the heat can’t escape.
blanket
[?bl??k?t]
二氧化碳
The greenhouse effect causes the level of the sea to _____ and the climate of the earth to change.
rise
温室效应
the level of the sea
[ra?z]
Word testing
fewer trees
factory pollution
traffic pollution
the ozone layer
more carbon dioxide
Can you match them?
Task1:Fast reading
Choose suitable titles for Paragraphs 2-6.Then write it down in front of each paragraph.（P40 1b 1）
Traffic pollution
Factory pollution
Fewer trees