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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, reduce, completely,
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.
Grammar: Indefinite pronoun and adverb.
Difficult points：
能够从所听材料中获得有效的细节信息来补全句子。
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
通过引导学生在听前阅读1b和3，培养学生形成听前熟悉、预测听力材料的学习习惯。
通过3中的插图预测并描述新话题，培养学生的逻辑推理能力。
V.Teaching aids
关于沙尘暴的视频和图片，PPT等。
Ⅵ. Teaching procedures
Step 1
Getting students ready for learning
Step 2
Play a short video about a sandstorm and let Ss guess what kind of weather it is.
Step 3
(1)Show the pictures of a sandstorm, let the Ss guess how sandstorm comes into being and number the pictures in 3.