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In what may be the most terrified shower news since Alfred Hitchcock’s “Psycho,” a study says shower heads can hide tiny bacteria that come spraying into your face when you wash. People with normal immune systems have little to fear, but these bacteria could be a concern for those with AIDS, people who are undergoing cancer treatment or those who have had a recent organ transplant.

Researchers at the University of Colorado tested 45 showers in five states as part of a larger study of the microbiology of air and water in homes, schools and public buildings. They report their showers findings in Tuesday’s edition of Proceedings of the National Academy of Sciences.

In general, is it dangerous to take showers? “Probably not, if your immune system is not compromised in some way,” lead author Norman R. Pace says. “But it’s like anything else---there is a risk associated with it.”

The researchers offer suggestions for caution, such as getting all-mental shower heads, which microbes have a harder time clinging to.

 Still, it is hard to clean the shower heads, the researchers note, and the bacteria come back even after cleaning. People who have filtered(过滤的) shower heads could replace the filter weekly, added co-author Laura K. Baumgartner. And, she said, baths don’t splash bacteria into the air as much as showers.

Indeed, studies by the National Jewish Hospital in Denver suggest increases in infections in the lungs in the Untied States in recent decades from species like M.
    Symptoms of infection can include tiredness, a persistent, dry cough, shortness of breath, weakness and “generally feeling bad,” he said.

Shower heads were sampled at houses, apartment buildings and public places in New York, Illinois, Colorado, Tennessee and North Dakota.

 The researchers sampled water flowing from the shower heads, then removed them, wiped the interiors of the devices and separately sampled water flowing from the pipes without the shower heads.

 By studying the DNA of the samples they were able to determine which bacteria were present.

66. Which group of persons of the following don’t have to fear the bacteria in the shower head?

A. Those who suffer from AIDS

B. Those with normal immune system

C. Those undergoing cancer treatment

D. Those that have had organ transplanted recently

67. In Para 3, what does Norman R. Pace suggest?

A. People with abnormal immune system will die from taking showers.

B. People shouldn’t take shower for there is always a risk there.

C. Bacteria in shower heads may harm those with abnormal immune system 

D. Abnormal immune system is associated with taking showers.

68. What does the underlined word “cling to” mean in Para. 4?

A. Holding onto tightly                                   B. Spreading widely

C. Breaking out                                               D. Cleaning up

69. What suggestions do NOT the researchers offer for caution?

A. Using all-metal shower heads.                 B. Replacing the filter weekly.

C. Stopping splashing microbes                   D. Taking baths instead of showers 

70. What is the best title of this passage?

A. Microbes hidden in shower heads            B. An important research on showers

C. Taking baths instead of showers              D. Terrible murder in the showers

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( A)
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↓                                        ↓
⑥⑦                                     ⑦
C.   ①②③④⑤⑥                      D.        ①②③
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①Isaac Stern was more than a great violin player. He was one of the most honored musicians in the world. He was an international cultural ambassador. He was a major supporter of the arts in America and in other countries. He was a teacher and activist.

②Isaac Stern was born in 1920 in what is now Ukraine. His parents moved to San Francisco, California the following year. His mother began teaching Isaac the piano when he was six. He began taking violin lessons after hearing a friend play the instrument. Later, he began studying music at the San Francisco Conservatory (音乐学院).He progressed quickly. When he was 16, he played with the San Francisco Symphony Orchestra. The next year, he performed in New York City and was praised by music critics.

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⑤In 1984, Isaac Stern received the Kennedy Center Honors Award for his gifts to American culture through music. He expressed his thoughts about the part that music plays in life. He said he believed that music makes life better for everyone, especially children.

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1.Which of the following is the RIGHT time order for these events in Stern’s life?

a. He began learning music in an institution.

b. He received the Kennedy Center Honors Award.

c. He visited the Soviet Union.

d. He met with Chinese musicians.

e. He performed for American soldiers.

A.a, e, c, d, b         B.a, e, b, c, d         C.e, a, b, c, d         D.e, a, c, d, b

2.Paragraph 2 is mainly about _________ .

A.how Stern began to learn music

B.how Stern began his musical career

C.Stern’s early education

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A.someone who supports young musicians

B.someone who wants to be a musician

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A.①→②③④⑤→⑥⑦                    B.①→②③④⑤⑥→⑦

C.①②③④⑤⑥→⑦                      D.①②③→④⑤⑥⑦

 

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