“We have to do something to address water scarcity,” says Olga Naidenko, a senior scientist at the non-profit Environmental Working Group. “Less than 10% of potable water is used for drinking, cooking, showering or dishwashing. We flush it down the toilet, literally. ” Technologies exist to safely treat the water, she says, although some are expensive. The report says water reuse projects tend to cost more than most water conservation options but less than seawater desalination (脱盐)and other supply alternatives. It calls on the EPA to develop rules that set safe national standards.
55. As can be learned from Paragraph 1,drinking wastewater _______ . A. is to become a growing necessity B. is well received by the Americans C. has caused heated public debates D. has become the dominant option 56. Which of the following statements would Jorg Drewes agree to? A. Water reuse may eventually put the public at risk. B. Water reuse is preferable to wasting water. C. Water reuse is far from a solution to water shortage. D. Water reuse is possible only after greater tech advances. 57. Lake Livingston is mentioned to show that the public _______. A. accepts the fact of drinking wastewater calmly B. is concerned about the safety of the drinking water C. does not believe that wastewater is safe to drink D. is not aware of the nature of their drinking water 58. According to Alan Roberson, _______. A. it is not safe to drink wastewater B. the report has surprised the public C. the report helps build up public confidence D. the public has yet to accept drinking wastewater 59. Olga Naidenko’s remarks emphasize _______. A. the recent progress B. the existing problems C. the new perspective D. the potential risks 60. What does the report suggest to the EPA? ' A. Weighing different water conservation options. B. Exploring new technologies to treat wastewater. C. Setting up national standards for water reuse. D. Monitoring water supplies at a national level.
PartⅣ Cloze (15 minutes,15 points,1 for each) Directions: In this part,there is a passage with 15 blanks. For each blank there are 4 choices marked A, B, C,and D. Choose the best answer for each blank and mark the corresponding letter with a single bar across the square brackets on your machine-scoring ANSWER SHEET.
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