题目内容
The United Nations, ________ has its main head-quarters in New York City, is a very important world organization.
- A.which
- B.whom
- C.who
- D.as
阅读下面短文,掌握其大意,从下列各各题所给的四个选项(A 、B、C和D)中,选出最佳选项,并在答题卷上将该项涂黑。
These days, it is common to see 5-gallon bottles of water being sent to homes. Supermarket 21
are filled with all kinds of bottled water from simple 22 bottles containing “pure spring water” to expensive foreign types of mineral water in glass bottles. In Europe, bottled water is as 23 as soft drinks which are widely accepted in the United States. People are not only interested in the different choices of drinks, but also in the taste of bottled water and its 24 value.
All bottled water on sale must 25 the content of the water on the bottle. Some companies 26
minerals to give the water a better taste. But the term “mineral water” is 27 , because all water, except specially purified water, contains minerals. 28 must be made to tell people clearly what kind of water people are exactly buying: spring water, mineral water, or purified water. For example, “spring water” will have to come from a(n) 29 spring.
Many people choose bottled water 30 tap water, because they 31 the safety of public drinking water. Some people worry about city water 32 . We need to pay close attention to the cleanliness of our drinking water. The government should be responsible for tap water 33 . It should be tested and checked 34 .
Keep in mind that bottled water is 35 . In many cases, you are paying for water that is not much different from tap water. If you are not sure of the safety of your tap water, have it 36 . A local health department can be of 37 . Compared with the cost of bottled water, the testing cost will be less expensive. Letting cold water 38 for a minute or so before taking a drink or using it in preparing a meal is a good way to 39 possible water pollution, especially if the water has been 40 for an hour or more.
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