题目内容
—May I ask you some questions, Dr. Wang?
—_______
A.You’re welcome. B.Sure, go ahead. C.No, I’m busy. D.Yes, you must.
The energy in food is mainly in the form of three kinds of chemical materials --- carbohydrate (碳水化合物), protein (蛋白质) and fat (脂肪). Carbohydrate provides 3.8 cal/gm (calories per gram) of energy, protein provides 4.0 cal/gm and fat provides 8.8 cal/gm. Each kind of food contains different amounts of these materials, as the round charts show below.
CALORIES NEEDED PER DAY | |
Baby 750 | Office worker 1,500 |
Child aged 8 2,100 | Woman feeding baby 2,700 |
Man 1,980 | Boy aged 16 3,700 |
Woman 1,800 | Farmer 3,600 |
1.Who only needs half of the farmer’s calories in the chart?
A.The woman feeding baby
B.The office worker
C.The woman
2.A 17-year-boy can increase the most calories if he has ________.
A.milk B.rice C.peanuts