Question

The Healthy Habits Survey shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.

1.How many times did you brush your teeth yesterday?

Finding: A full 33% of seniors brush their teeth only once a day.

Step:Remove   the   300   types   of   bacteria( 细 菌 )   in   your   mouth   each   morning   with   a battery-operated(电动的) 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 which doctors advise.

Step: We touch our faces around 3,000 times a day ─often inviting germs(细菌) 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 germ？

Finding: Seniors are not fighting germs as well as they should.

Step: 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(微波炉) for 10 seconds.

1.What is found out about American seniors?

A. All of them are fighting germs better than expected.

B. Most of them have good habits.

C. Nearly 30% of them bathe three days a week.

D. About one third of them brush their teeth only once a day.

2.Doctors suggest that people should wash their hands_________.

A. four times a day    B. twice a day

C. eight times a day    D. three times a day

3.Which of the following is true according to the text?

A. A kitchen sponge can carry more germs than a toilet.

B. There are less than 300 types of bacteria in the mouth.

C. We should keep from touching our faces.

D. We should wash our hands before touching a door handle.

4.The text probably comes from __________.

A. a book review    B. a popular magazine

C. a guide book    D. an official document(文件)

Answer

1. D

2. C

3. A

4. B

【解析】

本文是一篇说明文。本文是一项关于健康习惯的调查，从一天刷几次牙，洗手沐浴几次，以及如何和细菌战斗等方面描述了这项调查的发现并给出了专家建议。

1.细节理解题。根据第一项调查的Finding：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。

2.细节理解题。根据第二项调查的Finding：And nearly 30% wash their hands only 4 times a day ─half of the number which doctors advise.可知一天洗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C。

3.细节理解题。根据第三项调查的Step：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，所以选项A表述正确，故选A。

4.推理判断题。A项“书评”，B项“受欢迎的杂志”，C项“旅游指南”，D项“官方文件”。由文章内容可知，这是一份调查报告，是针对美国老年人的健康习惯所做的调查，这样的文章理应不会出现在“旅游指南”，“书评”，“官方文件”里，故排除A、C、D，在流行杂志做这样的调查报告很常见，故答案选B。