●新课导入建议

　　教师可以利用一张沙尘暴的图片导入新课，如：Look at the picture. What happens? There is a terrible sandstorm.Some cars are almost buried.That is，they are almost covered with sand.教师在引入单词时，重复需要强调的单词，有必要时可以写上黑板。

　　●教学流程设计

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　　Ⅰ.篇章结构

　　阅读P32的文章，完成下面表格(每空不超过3个词)

　　General idea of each part 　　More details 　　Part 1 (Para 1) Sandstorms have been a major 1. . 　　Scientists have tried many ways to 2. the problem. 　　Part 2 (Para 2)3. are sandstorms？ 　　Sandstorms are strong，dry winds.They can carry sand；they are often so 4. that you cannot see the sun；sometimes they are strong enough to move sand 5. . 　　Part 3 (Para 3) 6. do sandstorms form？ 　　Sandstorms begin in desert areas；due to 7. ，sandstorms in China appear to 8. in recent years.