【正文】
ification is a _______that happens when land bees desert because of ______ changes and because people ______ _____trees and _____ _____ grass. ? Sandstorms sometimes _____Beijing. Citizens _____ _____ ______ an orange sky and strong winds that _______the city in a thick, brownyellow______. part desert process climate cut down dig up affect wake up to cover dust ? The Chinese Central Weather Station can ______a sandstorm some weeks before it arrives in Beijing, but the _______of the storm sometimes ________ people. ? The desert is only 250 kilometers away ______the west of Beijing. In order to ______it ing nearer, the _______has planted more than 30 billion trees and plans to ________ planting for the next five years. forecast strength surprises to prevent government continue Ⅴ . Pa