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    【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    【1】 To answer that question you need to ask yourself, is your drinking water supply safe?

    Your water may contain many impurities(杂质) both man made and natural that can range from many different chemicals to all sorts of different bacteria. 【2】 Though these impurities aren't harmful to us, many can cause bathroom fixtures to rust and corrode and stain our laundry.

    The government has set minimum standards for safe drinking water. 【3】 No one really knows the long term effects of many of the things that are allowed in our water.

    There are two basic kinds of water quality standards. 【4】 Primary standards deal with the actual cleanliness of the water and whether or not it is healthy to drink and Secondary standards deal with the appearance and smell of the water. It might interest you to know that even though the EPA has set these standards, in 1997 the EPA was happy to state that 88% of the towns served by public water systems were reported to have no violations. However, it means that 12% of the water systems in the country did have water standards violations.

    【5】 You wouldn't know until someone told you, if they told you. And by then you could have consumed quite a lot of substandard water. The really only safe thing to do today is take charge and do one better than the standard by either buying bottled water on a regular basis, which is expensive, or by getting a water purifier for your home.

    A. What if you/span> were in that 12% ?

    B. However, these are the minimum standards.

    C. Most of these kinds of impurities are not harmful.

    D. They are Primary and Secondary standards.

    E. Is a water purifier a good choice today for you and your family?

    F. Setting drinking water standards is not an easy process and there are sill many unknowns.

    G. Whether you get a glass of drinking water or you take a shower, you expect that water to be safe.

    【答案】

    【1】E

    【2】C

    【3】B

    【4】D

    【5】A

    【解析】

    试题分析: 本文主要介绍了人们饮用水的现状以及政府对饮用水质量的控制情况。

    【1】E 下一句提到“为了回答这一问题”，由此可知此句应为一个问句，由于下文提到了水中的杂质问题，因此此处应为对于你和你的家人而言净化器是不是一个好的选择。

    【2】C.因为下句中说到尽管这些杂质对人体无害，但却会对人们的衣服及洗浴设备造成伤害，因此此句应为这些杂质大部分是无害的。

    【3】B.本段首句提到政府对安全饮水设了最低标准，因此此处应选B项。

    【4】D.因为上句提到了水质量的两个基本标准，所以本句需要进一步解释其具体内容。

    【5】A.上一段中提到88%的水是无污染的，另外根据后面一句：直到有人告诉你，否则你无法知道。可知此处设问“如果你正好是那12%怎么办呢？”

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