下面有3篇短文,每篇幅短文后有5道题,每题材后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择一个最佳答案涂在答题卡相应的位置上。
第一篇
U.S. Blacks Hard-hit by Cancer
Death rates for cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday.
In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease.
This could be because of unequal (不平等的) access to medical care, because blacks are more likely to have other diseases as well, and perhaps because of differences in the biology (生物学) of the cancer itself, the report added.
"In general, black Americans have less hope of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis," the report said.
"In describing cancer statistics for black Americans, this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care."
The cancer society said blacks should be encouraged to get check-ups (体格检查) earlier, when cancer is more treatable, and it said more research is needed to see if biological differences play a role.
"The new statistics emphasize the continuing importance of wiping out these unfair social differences through public policy and education efforts," the organization said in a statement.
But it also noted a drop in cancer death rates.
"Cancer death rates in both sexes for all sites combined have dropped greatly among black Americans since 1992, as have incidence rates (发生率)," said the report.
31 Black Americans are more likely to die of cancer than
A people in other countries.
B white Americans.
C all other Americans.
D their ancestors.
32 Which may NOT be a reason for higher cancer death rates among US blacks?
A Unequal access to medical care.
B Greater probability of having other diseases,
C Differences in the biology of the cancer.
D Early diagnosis.
33 Cancer is more treatable if it is detected
A in an early stage.
B in a late stage.
C all of a sudden.
D together with other diseases.
34 Public policy and education efforts may help to do away with
A death rates.
B various cancers.
C unfair social differences.
D biological differences.
35 Since 1992, cancer death rates among black Americans
A have been going up and down.
B have remained stable.
C have increased.
D have fallen.
第二篇
Crystal Ear
One day a friend asked my wife Jill if I wanted a hearing aid. "He certainly does," replied Jill. After hearing about a remarkable new product, Jill finally got up the nerve to ask me if rd ever thought about getting a hearing aid. "No way," I said. "It would make me look 20 years older. No, no," she replied. "This is entirely different. It's Crystal Ear!"
Jill was right. Crystal Ear is different-not the old-styled body worn or over-the-ear aid, but an advanced personal sound system so small that it's like contacts (隐形眼镜) for your ears. And Crystal Ear is super-sensitive and powerful, too. You will hear sounds your ears have been missing for years. Crystal Ear will make speech louder, and the sound is pure and natural.
I couldn't believe how tiny it is. It is smaller than the tip of my little finger and it's almost invisible when worn. There are no wires, no behind-the-ear device. Put it in your ear and its ready-to-wear mold (形状) fits comfortably. Since it's not too loud or too tight, you may even forget that you're wearing it! Use it at work or at play. And if your hearing problem is worse in certain situations, use Crystal Ear only when you need it.
Hearing loss, which occurs typically prior to teenage years, progresses throughout one's lifetime. Although hearing loss is now the world's number one health problem, nearly 90 percent of people suffering hearing loss choose to leave the problem untreated. For many millions, treating hearing loss in a conventional way can involve numerous office visits, expensive testing and adjustments to fit your ear. Thanks to Crystal Ear, the "sound solution" is now convenient. Almost 90 percent of people with mild hearing loss, and millions more with just a little hearing drop-off (下降), can be dramatically helped with Crystal Ear. Moreover, its superior design is energy-efficient, so batteries can last months. Crystal Ear is now available to help these people treat their hearing loss with a small hearing amplifier (放大器).
36 Initially the writer did not want to buy a hearing aid because
A it would make him look old.
B it would make him nervous.
C it was too expensive.
D it was old-styled.
37 Which of the following is NOT true of Crystal Ear?
A It is highly sensitive.
B It is powerful.
C It is invisible.
D It is wireless.
38 One special feature of Crystal Ear is that
A you can control its volume.
B you needn't take it off every day.
C it is solar-powered.
D it saves power.
39 According to the passage, hearing loss is
A only a minor health problem.
B the world's most common health problem
C merely a teenage disease.
D an incurable disease.
40 Many people leave their hearing problem untreated because
A it is not serious.
B Crystal Ear is not yet available.
C it is not easy to have it treated.
D they don't want to look old.
