第四节：写作（共两节，满分35分）
第一节：对话填空（共10小题；每小题1分，满分10分）
Lin Hai：I can't wait to get my driving license！Then I can buy my own car. There are so many cars (76) a______ now that prices have really fallen. It's great！
Wang Jun：Are you serious？ The increase in new cars has (77) b______ our roads and has made pollution even worse here.
Lin Hai：More cars mean lower prices. I like that！
Wang Jun：What about the environment？(78) W______ more cars on the road， traffic problems, accidents and pollution will get much worse.
Lin Hai：Hmmm, you (79) e______ don't like cars or you don't know much about them.
Wang Jun：Yes，I do. I know cars can be useful, but they can cause a lot of (80)d　　.
Lin Hai：People need cars, and if cars do so much damage, they wouldn't be (81) a______ on the roads.
Wang Jun：Hmmm，I don't think you have read much about this problem.
Lin Hai：No，and I don't need to，(82) b______ I don't think there is a problem.
Wang Jun：Yes， there is. It's reported in the newspaper that there are more cars on our roads now (83) t______ at any time in history. There are millions of possible car buyers，and car makers are busy making cars for them.
Lin Hai：So what？
Wang Jun： By 2020， there will be seven times the(84) n______of cars on our roads, and the effect of these cars will be pollution,(85) e______  in big cities.