题目内容
Normally, about 10 percent of the hair on your head is resting (not growing). After a few months, the resting hair falls out and new hair begins to grow in its place. The growing time can last from 2 to 6 years. During the growing period, hair will gain about 1 centimeter a month. It is normal to experience hair loss every day. Some people experience too much hair loss from a variety of causes.
Most people erroneously believe that hair loss is caused by things like stress, scalp (头皮)，or wearing hats. With the exception of stress, none of these factors has been proven to be a cause of hair loss. Stress is also not very likely unless you have experienced extreme physical or psychological suffering. This hair loss also doesn’t last long.
The real cause of hair loss lies with hormonal(荷尔蒙的) problems. Hair loss occurs when male or female hormones are out of balance. An imbalance of hormones is usually genetic and cannot be cured. Male and female-pattern baldness is the most common form of hair loss. This is caused by a hormone called DHT, which helps in sexual development. An increase in DHT in a grown-up can lead to hair loss.
There are also other causes of hair loss. Blood-thinners, some kind of medicines, and an excess of vitamin A, have all been shown to increase hair loss in certain people. Infections of the scalp can cause hair loss as well as certain diseases like diabetes.
72. What does the underlined word “erroneously” in Paragraph 2 mean?
A. Luckily. B. Strangely. C. Wrongly. D. Honestly.
73. If a man experiences extreme physical suffering, he ___ .
A. may lose some hair B. won’t grow new hair
C. will lose much hair D. may suffer from severe diseases
74. Which of the following can be learned from the passage?
A. The real cause of hair loss is still unknown.
B. Taking too much vitamin A may lead to hair loss.
C. The more DHT a person has, the more hair he will have.
D. An imbalance of hormones is easy to cure.
75. What is this passage mainly about?
A. The side effects of medicines. B. The effects of hormones.
C. The causes of hair loss. D. Some ways to protect your hair.
CABC
The Voice of America began during the World WarⅡ, when Germany was broadcasting a radio program to get international 36 . American officials believed they should 37 the German broadcast with words that they thought were the facts of world events. The first VOA news report began with words in 38 . “The 39 may be good or bad, but we shall tell you the truth.” Within a week, other VOA 40 were broadcasting in Italian, French and English.
After the World War Ⅱended in 1945, some Americans felt VOA’s 41 had to be changed, 42 the Soviet Union（苏联）became enemy of America. They wanted to 43 Soviet listeners. Then VOA began broadcasting in Russian.
In the early days VOA began adding something new to its Broadcast that was 44 “Music USA”. Another new idea came along in 1959. VOA knew that many listeners did not know _ 45 English to completely understand its 46 English broadcast. So VOA 47 a simpler kind of English, 48 uses about 1,500 words and is spoken 49 . Of course, it is special English.
In the 50 of most VOA listeners, the most 51 program is the news report. News from around the world 52 into the VOA news room in Washington 24 hours a day. It comes from VOA reporters in 53 cities and also from other 54 like BBC. VOA writers and editors use these materials to 55 news reports, which are being broadcast in 43 languages.
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I am my mother’s third child. When I was born, the doctor gently explained to my mother that my left arm was 36 , below the elbow (肘). Then he gave her some 37 , “Don’t treat her any 38 from the other girls. Demand more.” And she 39 !
My mother had to work to 40 my family. There were five girls in our family and we all had to 41 . Once when I was about seven, I came out of the 42 , “Mom, I can’t peel (削……皮) potatoes. I only have one hand.”
“You get back to peel those potatoes, and don’t ever use that as a(n) 43 for anything again!”
Of course I could peel potatoes — with my good hand, while holding them down with my __44 arm. There was always a 45 , and Mom knew it. “If you try hard 46 ,” she said, “you can do anything.”
Once in the second grade, our teacher had each of us race across the monkey bars (攀爬架). When it was my turn, I 47 my head. Some kids 48 . I went home crying.
After work the next afternoon, Mom 49 me back to the school playground.
“Now, 50 up with your right arm,” she advised. She stood by 51 I practiced, and she 52 me when I made progress.
I’ll never forget the 53 time I was crossing the bars. The kids were standing there with their mouths open.
It was the way with everything. When I 54 I can’t handle (处理) things, I see Mom’s smile again. She had the heart to 55 anything. And she taught me I could, too.
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