题目列表(包括答案和解析)
用所给单词的适当形式填空
1. I live on the __________ floor in this building.(one)
2. Lucy is tall and _______ , she must eat more. (fat)
3. Many ________ doctors wear glasses, too. (woman)
4. Your room is between mine and the ________. (twin)They’re the same age, but they have different _________. (hobby)
5. The boy sits there and reads a comic book ________. (happy)
6. Mr White is ________. He is from _________ and he speaks __________. (English)
7. My mother often goes __________ (shop)on Sundays.
|
|
|
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(卡). A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the picture shows. 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(碳水化合物), protein(蛋白质) and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the round pictures show.
(P= protein C= carbohydrate F=fat)
【小题1】How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?
A.55. | B.175. | C.325. | D.275. |
A.Milk. | B.Rice | C.Peanuts. | D.Milk or peanuts. |
A.A woman. | B.An office worker. | C.A farmer. | D.A boy aged 16. |
A.You need more calories for swimming than for mountain climbing. |
B.A child aged 8 needs the same amount of calories every day as a man over 70 does. |
C.A woman feeding baby needs over 4 times the amount of calories that a baby does. |
D.Everyone needs the same amount of calories per day. |
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 |
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com