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人教版(新课程标准)高中英语必修3 Unit 2同步练习二
If you are heading to the gyp in the hope of losing weight, try to do it before you eat your breakfast. Exercising before the first meal of the day is more 1 than after it, a British study has found. Although the 2 of exercise is well-known, people have been unsure about whether it is better to do it on an 3 stomach or a full one.
Dr. Jason Gill, who 4 out the research, said that while exercise in itself is good, any done before breakfast may be extra good, because it 5 the body to rely on its stores off at for 6. "When people talk about losing weight, they 7 mean losing fat." he added.
Ten men who made three 8 to his laboratory were given breakfast each time. On the first visit, the men didn't do any 9. On another, they did an hour's walk ahead of breakfast and on the third they did the walk 10 breakfast. Those who exercised 11 more fat than those who simply sat around. And those who did their walk before breakfast 12 up 33 percent more fat than those who exercised after eating. Tests showed they also 13 a bigger drop in the blood fats that raise the risk of heart disease.
However, those who exercised after breakfast shouldn't 14. Dr. Gill said, "The biggest 15 is between doing nothing and doing something. You are still going to 16 a huge benefit. Those who exercise before 17 only burnt off around a tenth of a pound more fat than the men who had a relaxing morning. 18 they did an hour's walk everyday for about ten days, they would 19 about a pound, which is about as fast as you can really 20 to lose weight."
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