module 4 sandstorms in asia period one introduction & reading and vocabulary 同步精练(外研版必修3,课标通用)
时间:50分钟
ⅰ.介副词填空
1.to have been caught________a sandstorm was a terrible experience.
2.sandstorms in china appear to have increased in recent years as a result ________“desertification”.
3.this is a process that happens when and becomes desert because of climate changes land because people cut________trees and dig________ trees.
4.citizens wake________ to an orange sky and strong winds that cover the city ________a thick,brownyellow dust.
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