A　　　　　 　　 B　　　　　　 　 C

　　　　　　 　D　　　　　　　　　　E

　　1．Look at Picture A and answer the question: What is happening?

　　There is a sandstorm blowing.

　　2．Look at Pictures B and C, and answer the question: What's the cause of sandstorms?

　　Excessive cultivation of farmland; deforestation; over­grazing; ineffective protection of constructive sites, etc.

　　3．Look at Pictures D and E, and answer the question: What measures should we take to prevent sandstorms coming?

　　(1)We should plant more trees and grow more grass.

　　(2)Control air and water pollution.

　　(3)Build green fences along the desert.

　　(4)All countries should join hands to propose a plan in sandstorms control and prevention.

　　Ⅰ.Fast­reading

　　1．Read the text quickly and write down the main idea of the text.

　　The text is about sandstorms in Asia and their causes and effects．

　　2．Match the main idea with each paragraph

　　①Para.1　A．Sandstorms in Asia.

　　②Para.2 B．Sandstorms sometimes affect Beijing.

　　③Para.3 C．The government plants trees to prevent sandstorms.

　　④Para.4 D．Sandstorms have been a major disaster for centuries.

　　⑤Para.5 E．Sandstorms do a lot of damage to people.

　　⑥Para.6 F．Sandstorms in China appear to have increased as a result of desertification.

　　答案：①～⑥　DAFBEC

　　Ⅱ.Careful­reading

　　Read the text carefully and choose the best answer.

　　1．Sandstorms are strong winds carrying through the air.

　　A．dirt and mud　 B．rain and heat

　　C．sand and dust D．cloud and snow

2．What do the experts advise people to do when a sandstorm arrives in the city?