The Healthy Habits Survey(調(diào)查)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 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 doctors recommend.

●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(海綿)that can carry more germs than anything else？To kill these germs，keep your sponge in the microwave for 10 seconds.

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.

2.Doctors suggest that people should wash their hands ________.

A．twice a day

B．three times a day

C．four times a day

D．eight times a day

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

A．We should keep from touching our faces.

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

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

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

4.The text probably comes from ________.

A．a guide book

B．a popular magazine

C．a book review

D．an official document

 

1.D

2.D

3.C

4.B

【解析】本文為一篇信息材料類說明文。文章介紹的是一個(gè)對(duì)美國(guó)老年人進(jìn)行的健康習(xí)慣的調(diào)查結(jié)果以及專家給出的對(duì)策。

1.

2.2】解析：選D。推理判斷題。根據(jù)wash their hands可鎖定第二個(gè)問題下的內(nèi)容，根據(jù)“And nearly 30% wash their hands only 4 times a day－half of the number doctors recommend.”可知，每天洗手四次只是醫(yī)生建議的一半，由此可推知，醫(yī)生建議的次數(shù)是每天8次。故選D項(xiàng)。

3.3】解析：選C。細(xì)節(jié)理解題。文章只是建議老年人要勤洗手，因?yàn)槭置刻旖佑|臉約三千次，然后接觸口、鼻、眼睛，這樣就會(huì)將細(xì)菌帶到這些部位，顯然，問題的癥結(jié)是避免未洗凈的手接觸口、鼻、眼睛等易被細(xì)菌感染的部位，而不是臉部，故A項(xiàng)不正確；B項(xiàng)中的less than 300與第一個(gè)問題下“Remove the 300 types of bacteria in your mouth...”有出入，故B項(xiàng)不正確；根據(jù)第二個(gè)問題下的“Use toilet paper to avoid touching the door handle.”可知，問題在于門把手上有大量細(xì)菌，會(huì)傳到手上，而不是手上的細(xì)菌傳到門把手上，故D項(xiàng)也不合適。根據(jù)最后一段中的“Do you know it is not your toilet but your kitchen sponge(海綿)that can carry more germs than anything else？”可知C項(xiàng)正確。

4.4】解析：選B。推理判斷題。本題要求判斷文章的出處，此類試題一般結(jié)合文章的內(nèi)容和格式綜合考慮。本文顯然不是書評(píng)(a book review)，也不是官方文件(an official document)。A項(xiàng)有較強(qiáng)的干擾性，但本文主要是面向公眾的科學(xué)知識(shí)普及，而不是生活指引。故選B項(xiàng)。

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