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能够从所听材料中获得有效的细节信息。
能够根据图片和信息提示词描述沙尘暴形成的过程。
3. Emotional aims: (optional)
??让学生了解环境污染的严峻形势，引导学生爱护大自然，爱护花草树木，树立绿色环保意识。
4. Culture awareness: (optional)
??通过课文的学习，让学生了解沙尘暴形成的原因和过程，关注全球的环境问题。
Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: sand, although, sandstorm, desert, human being, change into, stop … from, blow/ wash … away, as a result
Sentences: A lot of water can be saved by forests.
Although we have built “The Green Great Wall”, we still need to do something to protect the environment.
2.Difficult points：
能够根据图片和信息提示词描述沙尘暴形成的过程。
Ⅳ. Learning strategies
?? ?在教材的编排方面，我先处理3部分，?通过插图让学生预测，培养学生的逻辑推理能力。讲授生词，并引领学生简单描述沙尘暴形成的过程，让学生对这种天气，有所了解，然后再进入1a，详细谈论沙尘暴形成的原因以及树木的功能，这样，让课堂环节更加流畅。通过引导学生在听前阅读3和1b，培养学生形成听前熟悉、预测听力材料的学习习惯。
Ⅴ. Teaching aids
关于沙尘暴的视频和图片，幻灯片等。
Ⅵ. Teaching procedures
Step 1 Revision
Talk about different types of pollution and their effects.
2. Play a puzzle game. Help students review words they learned and will appear in1a.
Step 2 Presentation
Lead to the topic weather.
T: Let’s talk about weather. How’s the weather now?...
T:Right. Let’s go to see another kind of weather in the video. After watching it, please me what weather it is.
Play the video. Teach the word sandstorm.
Present two pictures about Beijing. Teach the word sand.
Show the pictures of a sandstorm, let the Ss guess how sandstorm comes into being?and number the pictures in 3.
Talk about each picture according to the given words. Teach new word desert and phrases wash...away, change into.
Ask a student to try to say about how sandstorms come into being.