23.A.to have them installed B.to have them installing C.to have been installing them 24.A.still B.already C.yet 25.A.install B.to install C.installed 第四部分阅读理解（共计30分，每小题3分） 26一30小题：阅读下列短文，从A、B、C三个选项中选出一个正确答案，并在答题纸上写出所 选的字母符号。 短文理解1 People all over the world today are beginning to hear and learn more and more about the problem of pollution.Pollution is caused either by man's release of completely new and often artificial (substances into the environment,or by releasing greatly increased amounts of a natural substance ()such as oil from oil tankers into the sea. Whatever its underlying reasons,there is no doubt that much of the pollution caused could be controlled if only companies,individuals and governments would make more efforts.In the home there is an obvious need to control litter and waste.Food comes wrapped up three or four times in packages that all have to be disposed of;drinks are increasingly sold in bottles or tins which can't be reused.This not only causes a litter problem,but also is a great waste of resources,in terms of glass,metal and paper. Advertising has helped this process by persuading many of us not only to buy things we neither want nor need,but also to throw away much of what we do buy.Pollution and waste combine to be a problem everyone can help to solve by cutting out unnecessary buying, excess use and careless disposal (of the products we use in our daily lives. 26.The main cause of pollution is A.the release of artificial or natural substances into the environment B.the production of new industrial goods C.increased amounts of a natural substance 60523. A. to have them insta11ed B. to have them installing C. to have been installing them 24. A. still 25. A. insta11 B. already B. to insta11 C. yet C. insta11ed 第四部分 阅读理解{共计 30 分，每小题 分} 26-30 小题:阅读下列短文，从 三个选项中选出一个正确答案，并在答题纸上写出所 选的字母符号。 短文理解 People a11 over the world today are beginning to hear and learn more and more about the problem of po11ution. Po11ution is caused either by man' s release of completely new and often artificial (人造的) substances into the environment , or by releasing greatly increased amounts of a natural substance (物质) ,such as oil from oil tankers into the sea. Whatever its underlying reasons, there is no doubt that much of the po11ution caused could be contro11ed if only companies, individuals and governments would make more efforts. In the home there is an obvious need to control Iitter and waste. Food comes wrapped up three or four times in packages that a11 have to be disposed of; drinks are increasingly sold in bottles or tins which can' t be reused. This not only causes a litter problem, but also is a great waste of resources, in terms of glass, metal and paper. Advertising has helped this process by persuading many of us not only to buy things we neither want nor need , but also to throw away much of what we do buy. Pollution and waste combine to be a problem everyone can help to solve by cutting out unnecessary buying , excess use and careless disposal (处理) of the products we use in our daily lives. 26. The main cause of po11ution is 一一一一一 A. the release of artificial or natural substances into the environment B. the production of new industrial goods C. increased amounts of a natural substance 605