外研版 必修 3   Module  4　 Sandstorms in Asia一轮单元测试题（英语）

Ⅰ.根据句意，用所给单词的适当形式填空

forecast　chemical　desertification　cycle　frighten　major　scary　urge　experience　protect

1．The sand storm that occurred several weeks ago was among the most ________.

答案：frightening

2．________ is one of the causes of sandstorms.

答案：Desertification

3．Another big sandstorm ________ in today's weather report.

答案：has been forecast

4．________ in a real sandstorm is quite dangerous.

答案：To cycle

5．Nowadays people use too many ________ in their life，which is bad for the environment.

 答案：chemicals

6．The doctor ________ me to have an X－ray test, and then, he could make a conclusion.

答案：urged