2017-2018学年高中英语必修三课后阅读作业: 十五 Module 4 Period 3 Grammar 语法专题课
Ⅰ. 阅读理解Most of the sandstorms that had swept China last year came fromforeign land, a Chinese official in charge of desertification control said onMonday. And the invasions( 入 侵 )could partly explain the frequentsandstorms in the country in recent years despite its achievementsin desertification control.