题目内容
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 |
【小题1】D
【小题2】C
【小题3】C
【小题4】B
【小题5】C
解析【小题1】理解计算题,根据文中语句“A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃.”理解可知。5kg of water from 35℃ to 90℃need 5*(90-35)=275calories
【小题2】生活常识题,根据生活常识可知。
【小题3】细节理解题,根据文中语句“the number of calories you use at any one moment normally depends on the activity you are in.”理解可知。
【小题4】理解推断题,根据文中语句理解推断可知。
【小题5】理解归纳题,根据文中语句理解归纳可知。
Why are so many people so afraid to fail? Quite simply because no one tells us how to fail so that failure (失败) becomes an experience that means growth. We forget that failure is part of the human condition and that every person has the right to fail.
Most parents work hard at preventing failure or protecting their children from the knowledge that they have failed. One way is to lower standards(标准). When a child finishes making a table, the mother describes it as “perfect” even though it doesn’t stand still. Another way is to blame (责怪) others. If John fails in science, his teacher is unfair or stupid.
There’s a problem with the two ways. It makes a child unprepared for life in the real world. The young need to learn that no one can be best at everything, no one can win all the time, and that it’s possible to enjoy a game even when you don’t win. A child who’s not invited to a birthday party, who doesn’t make the honour list on the baseball team, feels terrible, of course. But parents should not offer a quick consolations (安慰), prize or say, “It doesn’t matter.” Because it does. The young should be allowed to experience failure and be helped to come out of it.
Failure never gives people pleasure. It hurts both grown-ups and children. But it can be really good to your life when you learn to use it. You must learn to ask “Why did I fail?” Don’t blame anyone else. Ask yourself what you did wrong and how you can improve. If someone else can help, don’t be shy about asking them.
【小题1】How do most parents prevent their children from failure?
A.They give them some presents. |
B.They don’t tell them that they have failed. |
C.They don’t blame others. |
D.They help them to come out of failure. |
A.It’s impossible to enjoy a game if he misses it. |
B.He is the worst of all. |
C.It’s natural not to win a game and no one can win all the time. |
D.His teammates are not good enough. |
A.give him a small prize |
B.advise him to repeat failure |
C.blame others |
D.encourage him to learn from failure |
A.Learning from Failure |
B.Ways of Preventing Failure |
C.Reasons of Failure |
D.Getting Pleasure from Failure |