【正文】
down trees and 17 up grass.Sandstorms sometimes 18 Beijing. Citizens wake up to an orange sky and strong winds that cover the city in a thick, brownyellow 19 . The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see.The Chinese Central Weather Station can 20 a sandstorm some weeks before it arrives in Beijing, but the 21 of the storm sometimes 22 people. When a sandstorm arrives in the city, weather experts 23 people not to go out. Huang Xiaomei, who lives in Beijing says, To be cycling in a sandstorm is frightening. The winds are very strong. It39。(be caught in)5. 他煙癮很大,因而得了肺癌。d like ________ (go) to the Summer Palace. doesn39。clock.(go) dare not ________ him about it. (tell) told me ________ at six thirty. (leave) children are warned ________ in that lake. (not swim) you leave the room, please remember ________ the light. (turn off)39。re cutting down all the trees.David:Yes, we cut them down because we need the land and because we use the wood for paper and(18)____________. That leaves more carbon dioxide in the atmosphere.Interviewer:It39。s getting warmer?David:Well, I39。s climate seems to be getting warmer.Interviewer:We39。s possible that the sea could rise and 6 cities like New York and Shanghai could disappear under water.John:It sounds very (7) .David:I couldn39。re (14)_________right. Carbon dioxide is the gas that does most ( 15)_________to the atmosphere. But we have a problem with trees too. You see, trees give out ( 16 )_________ and ( 17)___________ carbon dioxide. So they39。t think it39。t have time ________ a rest. (to have)39。(prevent……from)2. 聽到孩子的話