Dieters' who eat meals high in protein might lose a bit more weight than those who get less protein and more carbohydrates (碳水化合物)一all other things being equal, a new analysis of past studies suggests. Researchers found that over an average of 12 weeks, people having a high一protein diet lost about 1.8 extra pounds, and more body fat, than those having a standard-protein diet.

Wycherley from the University of South" Australia in Adelaide, the lead author on the study says it’s possible that the body may spend more energy and bum more calories while dealing with protein, compared to carbohydrates. Another explanation for the link his team observed is that eating protein helps preserve muscle mass and muscle mass bums more calories, even when the body is resting, than other types of mass. He says people in the studies tend to get protein from a variety of animal and vegetable sources. Vegetable sources of protein include beans.

It is not obvious why a higher protein-to-carbohydrate ratio might help people lose more pounds——and one obesity researcher not involved in the new analysis questioned whether the trials were strong enough to make that conclusion. “The studies are generally far too short to tell effect,” Dr. James Levine from the Mayo Clinic in Scottsdale, Arizona, told Reuters Health in an e-mail. But given the limitations of the present evidence, Levine said, “It makes no real difference which of the weight-loss ways one chooses.”

1.According to Wycherley’s analysis, dieters should take in more ______.

A. fat         B. carbohydrates       C. protein D. calories

2.What can we learn from the studies?

A. It bums more calories to deal with carbohydrates.

B. Protein helps keep muscle mass which bums calories.

C. Vegetables contain more protein than animals.

D. No more calories are burned while the body is resting.

3.What is Levine’s attitude towards the conclusion of the studies?

A. Doubtful. B. Supportive. C. Curious. D. Agreeable.

 

【答案】

 

1.C

2.B

3.A

【解析】

試題分析：文章講述了咖啡這種飲品的發(fā)現(xiàn)，傳播的經(jīng)過。同時(shí)也講述了咖啡這種飲品的功能。

1.C細(xì)節(jié)理解題。Wycherley from the University of South" Australia in Adelaide, the lead author on the study says it’s possible that the body may spend more energy and bum more calories while dealing with protein, compared to carbohydrates.句意為：相比較碳水化合物來說，在處理蛋白質(zhì)的過程中，身體會(huì)消耗更多的能量和卡路里。由此可知根據(jù)他的分析應(yīng)該吸收更多的蛋白質(zhì)。

2.B細(xì)節(jié)理解題。由第二自然段的第一句話可知，處理蛋白質(zhì)的時(shí)候比處理碳水化合時(shí)燒掉的卡路里多，故A是錯(cuò)誤的。第二自然段的最后一句話，人們從肉類和蔬菜類中獲取蛋白質(zhì)，但并未說明蔬菜含的蛋白質(zhì)多，故C是錯(cuò)誤的。Another explanation for the link his team observed is that eating protein helps preserve muscle mass and muscle mass bums more calories, even when the body is resting, than other types of mass.句意為：另外一種解釋是吃蛋白質(zhì)有助于保存肌肉塊，而肌肉塊能消耗更多的卡路里，甚至是休息的時(shí)候。由此可知D是錯(cuò)誤的。

3.A細(xì)節(jié)理解題。It is not obvious why a higher protein-to-carbohydrate ratio might help people lose more pounds——and one obesity researcher not involved in the new analysis questioned whether the trials were strong enough to make that conclusion.句意為：蛋白質(zhì)對碳水化合物的高比率能幫助人們減肥的原因并不是十分清晰，是否有足夠的證據(jù)得出這個(gè)結(jié)論也沒有涉及到，所以由此可知，應(yīng)該是持懷疑的態(tài)度。

考點(diǎn)：考查對健康保健類文章的閱讀。

 

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