[单项选择]

A meager diet may give you health and long life, but it is not much fun—and it might not even be necessary.（）

A. scanty
B. lavish
C. balanced
D. nutrient

[单项选择]
A. meager diet may give you health and long life, but it’s not much fun — and it might not even be necessary. We may be able to hang on to most of that youthful vigor even if we don’t start to diet until old age.
Stephen Spindler and his colleagues from the University of California at Riverside have found that some of an elderly mouse’s liver genes can be made to behave as they did when the mouse was young simply by limiting its food for four weeks. The genetic rejuvenation won’t reverse other damage caused by time for the mouse, but could help its liver metabolize drugs or get rid of toxins.
Spindler’s team fed three mice a normal diet for their whole lives, and fed another three on half-rations. Three more mice were switched from the normal diet to half-feed for a month when they were 34 months old — equivalent to about 70 human years.
The researchers checked the activity of 11,000 genes from the mouse livers,
A. Eating less than usual might make us live longer.
B. If we go on a diet when old, we may keep healthy.
C. Dieting might not be needed.
D. We have to begin dieting since childhood.

[单项选择]
You can see for kilometers from the mountains where Allahverdi Ibadov herds his small flock of sheep amid a sea of yellow, red, and purple wildflowers. The view from Amburdere in southern Azerbaijan toward the Iranian border is spectacular, but Mr. Ibadov barely gives it a second glance.
Why should he He’s been coming here nearly every day for 100 years.
According to his carefully preserved passport, Mr. Ibadov, whose birth was not registered until he was a toddler, is at least 105 years old. His wife, who died two years ago, was even older. They are among the dozens of people in this beautiful, isolated region who live extraordinarily long lives.
Mr. Ibadov’s eldest son has just turned 70. He lost count long ago of how many grandchildren he has. "I’m an old man now I look after the sheep, and I prepare the wood for winter. I still have something to do. "
A. lifetime of toil, it see
A. Right
B. Wrong
C. Not mentioned

[单项选择]At some time in your life, you may have a strong desire to do something strange or terrible. However, chances are that you don’t act on your impulse, but let it pass instead. You know that to commit the action is wrong in some way and that other people will not accept your behavior.
Perhaps the most interesting thing about the phenomenon of taboo behavior is how it can change over the years within the same society, how certain behavior and attitude once considered taboo can become perfectly acceptable and natural at another point in time. Topics such as death, for example, were once considered so upsetting and unpleasant that it was a taboo to even talk about them. Now with the publication of important books such as On Death and Dying and Learning to Say Goodbye, people have become more aware of the importance of expressing feelings about death and, as a result, are more willing to tall about this taboo subject.
One of the newest taboos in American society is the topic of
A. Thin is "inside", and fat is "outside".
B. Thin is "diligent", and fat is "lazy".
C. Thin is "youthful", and fat is "spiritless".
D. Thin is "fashionable", and fat is "unfashionable".