The Healthy Habits Survey shows that only about one third of American seniors(年长者) have correct habits. Here are some findings and expert advice.
1.How many times did you brush your teeth yesterday?
·Finding：About 33% of seniors brush their teeth only once a day.
·Step：Remove the 300 kinds of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2.How many times did you wash your hands or bathe yesterday?
·Finding：Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day—half of the number that doctors advise.
·Step：We touch our faces around 3,000 times a day-often inviting germs（病菌）to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3. How often do you think about fighting germs?
·Finding：Seniors are not fighting germs as well as they should.
·Step：Be aware of germs. Do you know it is not your toilet but your kitchen sponge（海绵）that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
【小题1】What is found out about American seniors?A．Most of them have good habits.B．Nearly 30% of them bathe three days a week .C．All of them are fighting germs better than expected .D．About one third of them brush their teeth only once a day【小题2】Doctors suggest that people should wash their hands .A．twice a dayB．three times a dayC．four times a dayD．eight times a day【小题3】Which of the following is true according to the text?A．We should stop touching our faces.B．A kitchen sponge can carry more germs than a toilet.C．There are less than 300 kinds of bacteria in the mouth.D．We should wash our hands before touching a door handle.D
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(答案→)D
解析：本文是关于健康习惯的调查。在一天刷几次牙，洗手沐浴几次，以及多久考虑过和细菌战斗一次等方面，描述了一些美国老年人的习惯并给出了专家建议。
【小题1】细节理解题。根据“A full 33% of seniors brush their teeth only once a day.”可知大约三分之一的美国老年人一天只刷一次牙，故选D
【小题2】细节理解题。根据“And nearly 30% wash their hands only 4 times a day----half of the number doctors remend.”一天洗4次手是专家建议的一半，可知专家建议每天洗8次手。故答案选D
【小题3】细节理解题。根据“Do you know it is not your toilet but your kitchen sponge(海绵)that can carry more germs than anything else?”可知厨房里的海绵比任何其他东西（包括厕所）携带的细菌都多。所以B是正确的。