芜湖一中2009届高三第一次模拟考试

第三部分：阅读理解(共20小题；每小题2分, 满分40分)

阅读下列短文，从每题所给的四个选项A、B、C、D中，选出最佳选项。

（A）

The human body is a living machine, and, like all machines, it needs “fuel” to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?

The energy value of food is usually measured in calories. A calorie is the amount of heat required to raise the temperature of 1kg of water by1℃. The number of calories people need per day is different. Also, the number of calories you use at any one moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on .

The energy in food is in the form of three kinds of chemical materials-carbohydrate , protein and fat. Carbohydrate provides 3.8 Cal/gm, protein 4.0 Cal/gm, and fat 8.8 Cal/gm . Each food contains different amount of these materials, as the round pictures show.

( C= carbohydrate P= protein F= fat. )

56. The amount of calories supplied by equal amounts of milk, rice, and peanuts is the largest in

the case of .

A. milk

B. rice

C. peanuts

D. rice or peanuts

57. Which of the following is true?

A. You need more calories for swimming than for mountain climbing.

B. Food contains energy in the form of carbohydres , proteins and fuel.

C. Different people need different amounts of energy depending on their age, sex and the

activities they are in.

D. 3 grams of milk provides 16.6 calories because carbohydrate provides 3.8 Cal/gm ,

protein 4.0 Cal/gm and fat 8.8 Cal/gm.

58. This article mainly tells us .

A. all the energy is in food

B. the human body needs energy

C. the number of calories depends on your activity

D. we must only eat peanuts to get calories

（B）

That cold January night, I was growing sick of my life in San Francisco. There I was walking home at one in the morning after a tiring practice at the theater. With opening night only a week away, I was still learning my lines. I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.

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