题目内容
For years, experts have been encouraging people to exercise, using steps as simple as taking the stairs instead of a lift and walking to work, where possible. A recent study bolsters this advice — it shows that frequent active exercise throughout the day can have great health benefits.
The study, published in the magazine Preventive Medicine, found that just 2 minutes of stair-climbing several times a day can lower total cholesterol(胆固醇), raise HDL (“good”) cholesterol and improve the heartbeat in young women who do not have much activity during the day.“such improvements may have important effects on the health of women, since, like cigarette smoking, poor fitness have been shown to be a high risk for heart disease and death in women,”said Dr.Colin Boreham with the University of Ulster in Belfast, Ireland and the fellow researchers of this study group. Furthermore, improvements in total cholesterol levels achieved in the study could cut the rate of heart disease in women by a third, they noted.
The team of researchers from Britain studied 12 women between 18-22 years old, before and after the exercise program. The women used a public staircase for about 2 minutes a day for 5 days a week. Compared with a group of 10 women who did not take part in the stair-climbing program, the women who climbed stairs showed marked improvements in health and fitness levels after 7 weeks. However, they did not show any signs of weight loss.“A short-term stair-climbing program can give great health benefits to young women. Stair-climbing may be a particularly suitable way of combining exercise with an individual’s daily lifestyle,”they pointed out.
Experts advise visiting your doctor before beginning a new exercise program.
1.The underlined word “bolsters”( in Paragraph 1 ) means “_______”.
A. seeks B. offers C. follows D. supports
2.According to the study done by Dr.Boreham and his group, improvements in cholesterol levels are important in _______.
A. helping women to give up smoking
B. enabling women to take exercise
C. preventing women from having heart disease
D. helping women to lose weight
3.What is the main subject of the second and third paragraphs?
A. Causes of heart disease in young women.
B. Research findings of a stair-climbing program
C. Major contents of the magazine Preventive Medicine.
D. A report of a comparative study by Irish and British scientists.
4.What would be the best title for the text?
A. How to Prevent Heart Disease — What Do Doctors Say?
B. Stair-climbing Attracts More
C. Good Health Advice—take the Stairs
D. Yes, Exercise Is Good for You
