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Imagine eating everything delicious you want -with none of the fat. That would be great, wouldn't it？New "fake fat" products appeared on stone shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it's up to consumers to decide whether the new fat-free products taste good enough to keep eating.Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can't be digested at all.Normally, special chemicals in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids.The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.OIestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it's that ability to slide unchanged through the intestines that makes olestea so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestras can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc.Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.we learn from the passage that olestra is a substance that（）.

A.contains plenty of nutrients

B.renders foods calorie -free while retaining their vitamins

C.makes foods easily digestible

D.makes foods fat -free while keeping them delicious

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发布时间：2021-01-21

更多“Imagine eating everything delicious you want -with none of the fat. That would be great, wouldn't it…”相关的问题

第1题

Unlike most Europeans, many Americans ______ bacon and eggs for breakfast every day. ( )

Unlike most Europeans, many Americans ______ bacon and eggs for breakfast every day. （)

A.used to eating

B.used to eat

C.are used to eat

D.are used to eating

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第2题

Passage TwoAs we have seen, the focus of medical care in our society has been shifting fro

Passage Two

As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease—especially in terms of changing our many unhealthy behaviors, such as poor eating habits, smoking, and failure to exercise. The line of thought involved in this shift can be pursued further. Imagine a person who is about the right weight, but does not eat very nutritious (有营养的) foods, who feels OK but exercises only occasionally, who goes to work every day, but is not an outstanding worker, who drinks a few beers at home most nights but does not drive while drunk, and who has no chest pains or abnormal blood counts, but sleeps a lot and often feels tired. This person is not ill. He may not even be at risk for any particular disease. But we can imagine that this person could be a lot healthier.

The field of medicine has not traditionally distinguished between someone who is merely “not ill” and someone who is in excellent health and pays attention to the body’s special needs. Both types have simply been called “well.” In recent years, however, some health specialists have begun to apply the terms “well” and “wellness” only to those who are actively striving to maintain and improve their health. People who are well are concerned with nutrition and exercise, and they make a point of monitoring their body’s condition. Most important, perhaps, people who are well take active responsibility for all matters related to their health. Even people who have a physical disease or handicap (缺陷) may be “well,” in this new sense, if they make an effort to maintain the best possible health they can in the face of their physical limitations. “Wellness” may perhaps best be viewed not as a state that people can achieve, but as an ideal that people can strive for. People who are well are likely to be better able to resist disease and to fight disease when it strikes. And by focusing attention on healthy ways of living, the concept of wellness can have a beneficial impact on the ways in which people face the challenges of daily life.

62. Today medical care is placing more stress on ________.

A) keeping people in a healthy physical condition

B) monitoring patients’ body functions

C) removing people’s bad living habits

D) ensuring people’s psychological well-being

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第3题

A．Because she believed eggs were not very expensive and eating eggs could make her sli

m.

B．Because she thought her heart was strong and eating too much protein could not hurt her heart.

C．Because she had been told that eating eggs could help her to have a fine figure.

D．Because she liked eggs so much that she could not stand if she didn't eat eggs every day.

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第4题

下面句子中划线的动词使用正确的是（）

A.oes this girl very beautiful

B.It is not a clean house

C.He do not like eating bananas

D.oes they go swimming every day

E.oes he play basketball

F.re these your friends

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第5题

A．Because she believed eggs were not very expensive and also contained a lot of protei

n.

B．Because she thought her heart was strong and eating too much protein could not hurt her heart.

C．Because she had been told that eating eggs could help her to have a fine figure.

D．Because she liked eggs so much that she could not stand if she didn't cat eggs every day.

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第6题

When it comes to eating smart for your heart, stop thinking about short-term fixes and sim

plify your life with a straightforward approach that will serve you well for years to come.

Smart eating goes beyond analyzing every bite of food you lift【C1】______your mouth. "In the past we used to believe that【C2】______amounts of individual nutrients (营养物) were the【C3】______to good health, " says Linda Van Horn, chair of :he American Heart Association's Nutrition Committee. " But now we have a【C4】______understanding of healthy eating and the kinds of food necessary to【C5】______not only heart disease but disease【C6】______general, " she adds.

Scientists now【C7】______on the broader picture of the balance of food eaten【C8】______several days or a week.

【C9】______than on the number of milligrams (毫克) of this or that【C10】______at each meal.

Fruits, vegetables and whole grains, for example, provide nutrients and plant-based compounds【C11】______for good health. "The more we learn, the more【C12】______we are by the wealth of essential substances they【C13】______, " Van Horn continues, " and how they【C14】______with each other to keep us healthy. "

You'll automatically be【C15】______the right heart-healthy track if vegetables, fruits and whole grains make【C16】______three quarters of the food on your dinner plate.【C17】______in the remaining one quarter with lean meat or chicken, fish or eggs.

The foods you choose to eat as well as those you choose to【C18】______clearly contribute to your well-being. Without a【C19】______, each of the small decisions you make in this realm can make a big【C20】______on you health in the years to come.

【C1】

A．between

B．through

C．inside

D．to

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第7题

第二节短文理解1阅读下面短文，从[A]（Right)、[B]（Wrong)、[C]（Doesn't Say)三个判断中选择一个正

第二节短文理解1

阅读下面短文，从[A](Right)、[B](Wrong)、[C](Doesn't Say)三个判断中选择一个正确选项。

Etiquette(礼节) is important at a Chinese dinner party. Usually, the host(主人) should politely ask the guests to be seated first before he sits down. If there is a speech, people stop eating and drinking to listen. Every time a dish is brought out, the host asks the guests to try it first. Guests would not start eating the dish until the host asks them to. While eating, people should stop often to talk for a while. Eating all the time without stopping is not polite, and could be laughed at. Usually, people do not finish a dish. A finished dish would suggest that there is not enough of the dish to eat, which may make the host embarrassed(不好意思的), so people would not usually pick up the last piece off a plate. During a meal, the host asks the guests again and again to eat and drink more. Without this, some people may feel embarrassed about how much they eat. From time to time, people pick up food to give it to those sitting beside them. The host keeps the guests company all the way through the dinner. He would not finish until all the guests do so.

Etiquette at a Chinese dinner party in China is the same as that in western countries.

A．Right.

B．Wrong.

C．Doesn't Say.

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第8题

听音频，回答题For years the advice has been clear: Eating five portions a day of fruit and

听音频，回答题

For years the advice has been clear: Eating five portions a day of fruit and vegetables is the key to a healthy life. But five mayno longer be enough. A study has found that to get（26）defense against heart disease， you need to eat at least eight dailyservings of fresh food. The government"s five-a-day advice has its（27）in World Health Organization guidelines to include 14ounces of vegetables in a daily diet. But there have been doubts over whether eating more than this level of fruit and vegetablesmeant even greater health（28）. Now the new study suggests every extra portion provides added protection.（29）， those inthe highest category——eating eight or more a day——have a 22 percent lower chance of dying from heart disease than those who（30）three portions， the UK average. A "portion"（31）just under three ounces， equal to a small banana， a medium appleor a small carrot. The findings come from an ongoing European（32）diet and health， looking at 300000 people in eight countries. Dr. Francesca Crowe of Oxford University is working on the project. She said that although ischemic （缺血性的） heart disease.

（IHD.——the most common（33）——was less likely in those who ate lots of vegetables， it could be explained by the probably healthier lifestyles.（34）these things， the study specifically showed a reduced risk of dying from II-[D of around four percent for each（35）portion of fruit and vegetables eaten above the lowest category， which was those who ate two or fewer portions.

第（26）题__________

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第9题

听力原文：Some people hate everything that is modern. They cannot imagine how anyone can re

听力原文： Some people hate everything that is modern. They cannot imagine how anyone can really like modern music; they find it hard to accept the new fashions in clothing; they think that all modern painting is ugly; and they seldom have a good word for the new buildings that are being built everywhere in the world. Such people look for perfection in everything, and they take their standards of perfection from the past. They are usually impatient with anyone who is brave enough to experiment with new materials or to express himself or the age in original ideas. It is, of course, true that many artists do not succeed in their work and instead produce works that can only be considered as failures. If the work of art is a painting, the artist's failure concerns himself alone, but if it is a building, his failure concerns others too, because it may damage the beauty of the whole place. This does sometimes happen, but it is completely untrue to say, as some people do, that modern architecture is nothing.

We can't judge every modern building by the standards of the ancient time, even though we admire the ancient buildings. Technologically, the modern buildings are more advanced. The modern architect knows he should learn from the ancient works, but with his greater resources of knowledge and materials, he will never be content to imitate the past. He is too proud to do that.

(30)

A．Because they are aged.

B．Because they find it hard to accept modern things.

C．Because they take their standards of perfection from the Greek.

D．Because they look at things by the standards of the past.

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第10题

听力原文：Man's first real invention, and one of the most important inventions in history,

听力原文： Man's first real invention, and one of the most important inventions in history, was the wheel. All transportation and every machine in the world depend on it. The wheel is the simplest yet perhaps the most remarkable of all inventions. Because there are no wheels in nature, no living things was ever created with wheels. How, then, did man come to invent the wheel？

Perhaps some early hunters found that they could roll the body of a heavy animal through the forest on logs mole easily than they could carry it. However, the logs themselves weighed a lot. It must have taken a great prehistoric thinker to imagine two thin slices of log connected at their centers by a strong stick. This would roll along just as the logs did, yet be much lighter and easier to handle. Thus the wheel and axle came into being, and with them the first carts.

(30)

A．It led to many other inventions.

B．Man had no use for it then.

C．There were no wheels in nature.

D．All of the above.

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第11题

During the early American colonial years, com was more plentiful than wheat, so com breed

was more common than wheat bread. Friendly Indians showed colonists how to grow com and how to prepare it for food and pioneer women then improved the Indian cooking techniques. When people traveled, they went on foot or horseback, sleeping and eating in the forests. They carded com bread for sustenance; the com bread came to be called journey cake. Later when roads and taverns were built and stagecoaches carded passengers, journeycake became johnnycake, a name many easterners still use for corn breed. The kinds of bread made with cornmeal were-and still are-almost without limit. Every region has its specialties.

In colonial times, why was com bread more common than wheat bread？

A．The colonists preferred com breed.

B．Corn was more abundant.

C．The colonists did not know how to make wheat bread.

D．Com bread did not spoil as rapidly as wheat breed did.

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