sandstormsinasia语法填空练习

课堂练习语法填空Sandstorms, strong and dry winds 1._carry sand, have struck some Asian countries for centuries. As a result 2._desertification, sandstorms in china seem to 3. _(increase) in recent years. This is a process that happens 4. _land becomes desert because of climate changes and 5. _ people cut down trees and dig up grass. Northwest china is part of the sandstorm centre in central Asia. sandstorms sometimes have 6._very bad effect on Beijing, 7._(especial) on its weather and traffic, To solve the problem, many ways have been tried. For example, in order to stop the desert, 8._is only 250km away to the west, 9._(come)nearer to Beijing, the government is planting trees. So far, over 30 billion trees 10._(plant) and 11._(many)trees will be planted for the next five years.