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    B
    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 tankers into the sea．
    The whole industrial process which makes many of the goods and machines we need and use in our daily lives, is bound to create a number of waste products which upset the environmental balance, or the ecological balance as it is also known. Many of these waste products can be prevented or disposed of sensibly, but clearly while more and more new and complex goods are produce there will be new, dangerous wastes to be disposed of, for example, the waste products from nuclear power stations. Many people, therefore, see pollution as only part of a larger and more complex problem, that is, the whole process of industrial production and consumption of goods. Others again see the problem mainly in connection with agriculture, where new methods are helping farmers grow more and more on their land to feed our ever-increasing populations. However, the land itself is gradually becoming worn out as it is being used in some cases, too heavily, and artificial fertilizer cannot restore the balance.
    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 cannot be reused． This not only causes a litter problem, but also is a great waste of resources, in term of glass, metals 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 consumption and careless disposal of the products we use in our daily lives.
    45．The underlined phrase “disposed of ”in the second paragraph means_______.
    A． dealt with               B． exposed 
    C． disapproved of           D． collected
    46． In the writer’s view ,the more new goods, _______.
    A． the less pollution             
    B． the harder pollution can be prevented
    C． the more pollution there will be
    D． the more easily pollution can be controlled
    47．What can we learn from the last paragraph?
    A． We can do much to reduce pollution.
    B． The government is trying hard to stop pollution.
    C． Individuals know how to get rid of the habit of littering everywhere.
    D． We can’t stop buying unnecessary things.
    48． People can help solve the problem of pollution by _______.
    A． urging their governments to control litter and waste
    B． making anti-pollution advertisements
    C． cutting down the use of oil and other oil products
    D． reducing unnecessary buying, over-consumption and careless disposal of wastes


    45---48   ACAD    

    解析

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    B

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    B
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    B
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    B
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