| 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 A. (A) Eating less than usual might make us live longer. B. (B) If we go on a diet when old, we may keep healthy. C. (C) Dieting might not be needed. ~ D. (D) We have to begin dieting from childhood. [单项选择]
Eat to Live 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]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, and found that 46 changed with age in the normally fed mic 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 from childhood. [填空题]Dear Guests,
We extend a very warm welcome to you and hope you have a pleasant stay with us at the Garden View Hotel. The Garden View Hotel is a first-class hotel in Wuhan, offering guests a lovely and peaceful environment, well-equipped facilities and good transportation. At the service of guests are shops, facility counters, a recreation center and a tourist office to provide for the needs of visitors, on business or on holiday, and for entertainment and tourism. All designed for the comfort and enjoyment of its guests. We hope you allow us to serve you and take away a good impression of us: enjoy your stay. The main purpose of the passage is to deliver a (46) . 1) The Garden View Hotel is (47) hotel in Wuhan. 2) The guests will enjoy a (48) environment and (49) facilities. 3) Various services are offered for the (50) of its guest. 我来回答: 提交
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