题目内容

History books are filled with wealthy people who were practically destitute compared to me, I have tripe-tracked storm window; Croesus did not. Entire nations trembled before Alexander the Great, but he couldn't buy cat food in bulk. Czar Nicholas Ⅱ lacked a compound-miter saw.
Given how much better off I am than so many famous dead people, you'd think I'd be content. The trouble is that, like most people, I compare my prosperity with that of living persons: neighbors, high-school classmates, TV personalities. The covetousness I feel toward my friend Howard's kitchen is not mitigated by the fact that no French monarch ever had a refrigerator with glass doors.
There is really no rising or falling standard of living. Over the centuries people simply find different stuff to feel grumpy about. You'd think that merely not having bubonic plague(腺鼠疫) would put us in a good mood. But no, we want a hot tub too.
Of course, one way to achieve happiness would be to realize that even by contemporary standards the things I own are pretty nice. My house is smaller than the houses of many investment bankers', but even so it has a lot more rooms than my wife's and I can keep clean. Besides, to people looking back at our era from a century or two in the future, those bankers' fancy counter tops and my own worn Formica(福米加塑料桌面)will seem equally shabby. I can't keep up with my neighbor right now. but just wait.
Which of the following was possessed by the King William Ⅰ?

A. Flush toilet
B. Ruthless army
C. Paper towels
D. Riding lawn mower

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Why does the repair process of the DNA may finally fail?

A. Because short-wave radiant energy breaks the strands of the DNA.
Because the DNA may produce a colony of cancer cells.
C. Because enzymes work to rearrange the DNA into a new order.
D. Because the patient is exposed to UV form. time to time.

The researchers concluded that fish-oil capsules had little effect on coronary disease.

A. Right
B. Wrong
C. Not mentioned

According to the author, a way to achieve happiness is______.

A. be content with the current life
B. never to compare your life with that of the wealthy people
C. to buy a hot tub
D. to find different things to complain about

Many millions of people have high blood pressure(hypertension 高血压). What's so frightening about this so called silent killer is that it often does not produce (51) for years, secretly damaging arteries and organs throughout the body until it erupts (爆发) in the form. of stroke, heart attack, congestive heart failure(充血性尽力衰竭) or kidney disease. (52) left untreated, even mild hypertension can reduce the life expectancy of a 35-year-old (53) several years. (Readings of 140 to 159 over 90 to 99 are mildly high; about 120/80 is normal. )
That's why high blood pressure is commonly treated with anti-hypertensive drugs. But studies (54) that in some people an increase in calcium(钙) consumption can help (55) blood pressure without medication(药物治疗)。
Calcium also seems to help prevent high blood pressure. (56) the results of 13-year survey (57) by the U.S. National Center for Health Statistics, James H. Dwyer, associate professor of (58) medicine at the University of Southern California School of Medicine, found that people who consumed 1300 milligrams of calcium a day were 12 percent (59) likely to develop hypertension than those (60) only 300 mg. a day. In people under age 40, risk was reduced by up to 25 percent.
Soon doctors may (61) some hypertension patients to increase their calcium intake, (62) the way they now advise sodium(钠) restriction. "It's (63) to add food or supplements than to go on a low-sodium diet," (64) Dr. David McCarron, professor of medicine at Oregon Health Sciences University. "Our studies show that people who try the low-sodium (65) don't stay with it very long. "
(51)

A. evidence
B. symptoms
C. marks
D. sign

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