单选题 {{B}}Text 2{{/B}}
Smokers who want to kick the habit might soon get help from a product that's being tested at the University at Buffalo School of Dental Medicine: a mouth wash that makes cigarettes taste bad. It could be on the market within a year.
The anti-smoking rinse itself tastes rather pleasant. But if you light up within 6 to 8 hours of smoking it, your cigarette will taste like burnt rubber and you won't smoke past the first puff, explains Dr. Sebastian Ciancio, director of the Center for Dental Studies at the University of Buffalo.
Ciancio is heading up a pilot study in which 10 smokers, each of whom normally smoke at least a pack of cigarettes a day, are rinsing their mouths three times daily with the anti-smoking solution. Another 10 are getting a placebo. Prior to this study, only the inventor had tested the anti-smoking rinse—a chemist who does not wish to be identified—and a few of his friends, who say it enabled them to quit smoking.
And Ciancio has no shortage of volunteers: The waiting list to participate in the study is already full. "People arc desperate," he says. If the pilot study is successful, it will be expanded.
Not only might the patented formulation deter smoking, Ciancio adds, but it also appears to reduce plaque, gingivitis, and halitosis. Manufacturing the rinse, he estimates, would cost approximately the same as conventional mouthwashes.
单选题 How many smokers are participating in the pilot study now?
【正确答案】 D
【答案解析】由第三段刚开始的先行研究有10个吸烟者参与进来,接下去又有“another 10”(其余的10个),所以总计至今有20个。
单选题 What is the passage mainly about?
【正确答案】 B
【答案解析】文章的主题很明确。文章一开始就介绍了新型产品,然后介绍它的功效试验过程及生产展望。选B。
单选题 Who invented the anti-smoking rinse?
【正确答案】 B
【答案解析】可以找到第三段破折号所夹的部分,a chemist是inventor的同位解释。选B。
单选题 What does "it" refer to in the last sentence of the fourth paragraph?
【正确答案】 A
【答案解析】整段来考虑。第四段谈的都是志愿者的事,如果先行研究成功,那么应该是志愿者更加纷涌而至。选A。
单选题 We can know from the passage that ______.
【正确答案】 A
【答案解析】由最后一段“not only... but it also appears to reduce...”这句话可知A选项的结论是正确的,选A。