植树造林(Planting trees)－环境教学课题

1、.植树造林Planting trees环境教学课题植树造林planting trees课题： 植树planting trees 年级： 初中三年级第二学期第十八单元 目的： 1. 让学生认识森林的用处；2. 理解植树造林的意义，破坏森林的后果；3. 培养他们积极种树，保护树木的意识；4. 培养学生分析、综合及解决问题的才能。 工具： 中国地图, 有关森林和实物的一些照片 the great green wall is 7，000 kilometres long, and between 400 and 1,700 kilometres wide. the great green wall wi

2、ll stop the wind from blowing the earth away. it will stop the sand from moving towards the rich famland in the south. it has already saved a lot of land. but more great green walls are still needed, and not only in china. they must be built all over the world.notes: for activity 1, students are ask

3、ed to do in the following steps: 1. make sure that the students understand the meaning of the activity, and give some words or expressions possibly mentioned in the acitivity. 2. ask the ss to list at least six reasonssimple words, expressions or sentences why the trees are cut down. they should do

4、this activity individually. 3. each student asks the other three different students for their reasons. 4. if there are any different reasons and you agree, add these reasons to the picture. 5. if you dont agree these different reasons ,have a discussion with them. 6. write a short passage with the l

5、ist of the reasons to show why the trees are cut down. activity 2 is a discussion activity. the students are asked to do this activity in a competitive way. step 1: divide the class into groups of four. step 2: discuss the topic. the teacher gives any necessary help like some new vocabulary , or som

6、e pictures. step 3: each group reports their discussion to the class. step 4: the group who get the most answers win the game. hints: what forest can do? 1. help to grow desert沙漠. 2. save farmland. 3. change weather. 4. provide home for animals. 5. stop wind from blowing away the earth. 6. make food for human. 7. increase pollution 污染. 8. help to solve the population problem. 9. hold water in the soil 10. make wood for human. 11. add oxyg