People call these strange objects Unidentified Flying Objects(UFO)．A.没有身份B.来历不明C.无从辨认D.查无实据题目和参考答案——青夏教育精英家教网—

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 1 kg of water by 1℃.The number of calories people need per day is different, as the chart below shows. Also, the number of calories you use at any 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 mainly in the form of three kinds of chemical materials—carbohydrate（糖类）,protein and fat. Carbohydrate provides 3.8 Cal/gm（calories per gram） of energy, protein 4.0 Cal/gm and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the second chart shows.

Chart Ⅰ

CALORIES NEEDED PER DAY
BABY	750
OFFICE WORKER	2 700
CHILD AGED 8	2 100
WOMAN FEEDING BABY	2 700
MAN OVER 70	2 100
BOY AGED 16	3 000
WOMAN	3 600
FARMER	2 600

Chart Ⅱ

	FAT	PROTEIN	CARBOHYDRATE
MILK	30%	30%	40%
RICE	5%	10%	85%
PEANUTS	60%	30%	10%

1.____ calories are required to raise the temperature of 5 kg of water from 35 ℃ to 90 ℃?

A.55　　　　　　　　 B.175　　　　　　 C.325　　　　　　 D.275

2.If you lack for calories to support your running activities you’d better take more ____.

A. milk　　　　　　 B. peanuts C. rice　　　　　　 D. milk and rice

3.We may learn from the charts that ____.

A. a child aged eight requires more than 3 times the amount of calories that a baby does

B. a boy aged sixteen requires nearly twice the amount of calories that a boy aged eight does

C. a mother with a baby to feed uses up more calories than a hard-working farmer each day

D. an old man needs less calories than an 8-year-old boy on account of his less movement

4.Which of the following statements agrees with the passage and the charts above?

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

B. If you take an equal amount of Vitamin containing the calories you need, you don’t need to eat any food at all.

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.

Many people believe that teaching children music makes them smarter, better able to learn new things. But the organizers of a new study say there's no scientific evidence that early musical training affects the intelligence of young people.

An estimated 80 percent of American adults think music lessons improve children's abilily to learn or their performance in school. They say that the satisfaction for learning to play a new song helps a child express creativity.

Researchers at Harvard University, however, have found that there's one thing musical training does not do. They say it does not make children more intelligent. Samuel Mehr is a graduate student at Harvard's School of Education. He said it is wrong to think that learning to play a musical instrument improves a child's intellectual development. He says the evidence comes from studies that measured the mental ability of two groups of 4-year-olds and their parents. One group attended music class, the other went to a class that places importance on the visual arts—arts that can be seen.

"The evidence there is 'no'. We found no evidence for any advantage on any of these tests for the kids participating in these music clases," said Mehr.Samuel Mehr says researchers have carried out many studies in an effort to learn whether musical training can make children smarter. He says the results have been mixed. He says only one study seems to show a small percentage increase in IQ, intellectual scores among students after one year of music lessons. He does not believe that IQ is a good measure of child's intelligence. He says researchers in his study compared how well children in the musical training group did on mental processing tasks or projects, then the results were compared to those of children who did not take lessons. There was no evidence that the musical training group did much better on the mental tasks than the other group.

The researchers comfirmed the results with a larger group of children and their parents.Mr Mehr says music lessons may not offer children a fast easy way to gain entry to the best schools later of their life. But he says the training is still important for cultural reasons. In his words, "We teach music because music is important for us."

1.According to the new study, musical training______.

A. makes children smarter????????????????????????

B. helps a child express creativity

C. does not make children more intelligent??????????

D. improve children's ability to learn in school

2.Samuel Mehr may agree that______.

A. the children who attended music class are smarter than those who attended arts class

B. IQ is a good measure of a child's intelligence

C. we needn't to teach children music

D. music training is still important for cultural reasons

3.In order to confirm his view, Samuel Mehr______.

A. conducted more than one research

B. interviewed many American adults

C. taught two groups of 4-yetr-olds music and arts

D. offered children a fast way to be admitted to the best schools

4.The artical may be taken from a report about _____.

A. health????????????? B. education????????????? C. ????????????? culture????????????? D.economy

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A、B、C、D四个选项中，选出最佳选项。[来源:学&科&网]

The human body is a living machine , and , like all machines , it needs “fuel” (燃料) 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 1 kg of water by 1℃. The number of calories people need per day is different , as the pictures show . 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 , protein4.0 Cal/gm , and fat 8.8 Cal/gm . Each food contains different amount of these materials , as the round pictures show .

1．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

2．Choose one statement from among A-D that agrees with the passage and the pictures above .

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 .

3．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

The human body is a living machine, and, like all machines, it needs "fuel" （燃料） 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 1 kg of water by 1℃．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（碳水化合物）, protein（蛋白质）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．

1．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

2．Choose one statement from among A-D that agrees with the passage and the pictures above．

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

B．Food contains energy in the form of carbohydrates, 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．

3．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

The human body is a living machine, and, like all machines, it needs "fuel" （燃料） 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 1 kg of water by 1℃．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（碳水化合物）, protein（蛋白质）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．

1．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

2．Choose one statement from among A-D that agrees with the passage and the pictures above．

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

B．Food contains energy in the form of carbohydrates, 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．

3．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

People call these strange objects Unidentified Flying Objects(UFO)．

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