1、Unit 7 Protect the earth plastic bags drive so much B.drive so much; save energy ( B ) ( A ) How do we save energy? Why should we save energy? 用直线画出原因用直线画出原因(Why do we save energy?) 虚线画出方法虚线画出方法(How do we save energy?) Most of our energy comes from coal and oil. There is not much coal and oil on ear
2、th. We should save energy. We should not drive so much because cars use a lot of energy. Save energy Reading time Most of our energy comes from coal and oil. There is not much coal and oil on earth. We should save energy. We should not drive so much because cars use a lot of energy. How do we save t
3、rees? Why should we save trees? 用直线画出原因用直线画出原因(Why do we save trees?) 虚线画出方法虚线画出方法(How do we save tree?) Wood comes from trees. We use wood to make tables, chairs and many other things. We should not cut down too many trees because trees help keep the air clean. Wood comes from trees. We use wood to
4、 make tables, chairs and many other things We should not cut down too many trees. 砍下砍下 We should not cut down too many trees. Because trees help keep the air clean(净化空气净化空气) Trees Fill in the blanks _comes from trees. We use _ to make tables, chairs and many other things. We _cut down _trees because
5、 trees help _. Wood wood should not so many keep the air clean 1. What do you know about plastic? 2.Listening and answer What can we use plastics to make? Should we use too much plastics? What can we use plastics to make? Should we use too much plastics? But too much plastic is bad for the earth. We
6、 should not use too many plastic bags or bottles. We use plastic to make bags and bottles. We should use paper bags and glass bottles. So what can we use? We use plastic to make bags and bottles. But too much plastic is bad for the earth. We should not use too many plastic bags or bottles. We should
7、 use paper bags and glass bottles. Reading time Plastic Try to say with the given(所给的所给的) words use to too much.is bad for. should not too many. should use. “Protect the earth”环保主题演讲环保主题演讲 1.小组合作小组合作,每组选择文中的一每组选择文中的一 个小主题个小主题.(可以借助板书）可以借助板书） 2.Why should we ? 3.We should/shouldnt. 4.切合主题，提出保护口号切合主题，提出保护口号. Thank you!
