托福阅读备考习题(4).docx

智课网 TOEFL 备考资料托福阅读备考****题( 4) 奉上托福阅读挑战练****希望大家好好做托福阅读练****Introduction 】加拿大一项新研究发现,患二型糖尿病的病人,若能同时做有氧及重量训练运动,将可显着地降低血糖。【 Section One 】 Article It‘s no secret that exercise is key to controlling type 2 diabetes — and many doctors already urge their diabetic patients to get active. But it‘sa vague directive: How much exercise is enough? How often? And what kind? The simple answer is that any is better than none — in sum, that ‘s what a new study published in the Sept. 18 issue of the journal Annals of Internal Medicine found. But it also found that not all exercise is created equal and that bination of aerobic exercise and weight training is significantly better for controlling blood sugar than either alone. The elegantly designed study, led by researchers at the University of Calgary and the University of Ottawa, involved 251 patients aged 39 to 70, with type 2 diabetes. The patients, none of whom were regular exercisers, were randomized to one of four groups: aerobic exercise, resistance training, bination of both, or none. For 22 weeks, the aerobic group worked out for 45 minutes three times a week on the treadmill or stationary bicycle; the resistance-training group spent an equal amount of time on weight machines. bination group was at the gym twice as long as the other two exercise groups, doing the full aerobic plus weight-training regimens. "We built up gradually to 45 minutes