练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body.
    Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes (酶) that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic. To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.
    Processed foods contain chemical elements, which might confuse the appetite mechanism that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism (新陈代谢) becomes inactive, and the result is weight gain and obesity.
    The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.
    To stop this vicious（恶性的） circle in its tracks, people need to consume food and supplements that will neutralize the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself, you need to take an active approach.
    小题1:It can be inferred from Para. 2 that __________.
    A．foods with natural enzymes help people keep fit
    B．we’d better be cautious about raw and whole foods
    C．it is essential for people to protect their vital organs
    D．giving up cooked and refined foods is a new lifestyle
    小题2:Processed foods are unhealthy because they __________.
    A．destroy body’s cellsB．may lead to obesity
    C．are difficult to digestD．stop body’s metabolism
    小题3:What is the main purpose of this passage?
    A．To warn people of the problem of obesity.
    B．To advocate eating more raw and whole foods.
    C．To inform people of the harm of processed foods.
    D．To tell the differences between raw and processed foods.
    小题4:What is likely to be talked about following the last paragraph?
    A．Different causes of acid accumulation.
    B．Correct ways to cook raw foods.
    C．Suitable types of raw and whole foods.
    D．Active approaches to avoid acid.
    小题5:What can we learn from the text?
    A．Processed foods are good for our appetite mechanism.
    B．Processed foods also comfort the digestive tract.
    C．T he accumulation of acid in the digestive tract makes digestion more effective.
    D．Eating the right types of raw and whole foods does good to our body.

    小题1:A
    小题2:B
    小题3:B
    小题4:C
    小题5:D

    小题1:推理判断题。说明文的题目一定和文章的说明对象有直接关系，所以做题之前了解本文的说明对象有重要意义，即raw and whole foods好、cooked and refined foods不好。而第二段中指出，natural enzymes是raw food中重要的成分，好处是什么，破坏了以后坏处是什么。所以根据这样的思路，答案为A选项。注意中文注释再次发挥极为重要的作用。
    小题2:细节理解题。第三段一开始提到问题中的processed food，所以答案可以轻易的定位至第三段。此段一直提到各种负态度描述，所以关注最后一句的the result is weight gain and obesity，可以很容易的选出答案B选项。此段文章内容非常不好理解，但是把握阅读理解的要求，关注文章中的重点信息，题目其实并不难。如何在短时间内发掘文章中的重点信息，不受大量冗余信息干扰再次很重要，这是阅读理解考察的主要方向。
    小题3:主旨大意题。只要知道文章的说明对象是raw and whole foods，此题就不难确定答案B选项。processed foods是用来和raw and whole foods对比以突出后者的，所以排除C选项和D选项。至于A选项的信息在68题已经考过了，再次出题的可能性就不大。
    小题4:推理判断题。说明文的题目一定和文章的说明对象有直接关系，所以对应答案C选项。文章中只提到了raw foods好，没有说具体的烹饪方式，所以排除貌似与说明对象有关的B选项。而且raw foods经过cook以后，不就变成作者反对的cooked foods了。
    小题5:推理判断题。结合文中的Eating the right types of raw and whole foods can help可知答案。
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源：不详 题型：阅读理解

    If you do not use your arm or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that memory works in the same way. When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory（记忆力） is poor, he really means that he does not give it enough chance to become strong. If a friend says that his arms and legs are weak, we know that it is his own fault(过错). But if he tells us that he has a poor memory, many of us think that his parents are to blame(受责备), and few of us know that it is just his own fault. Have you ever found that some people can’t read or write but usually they have better memories? This is because they cannot read or write and they have to remember things they cannot write down in a little notebook. They have to remember days, names, songs and stories; so their memory is the whole time being exercised. So if you want to have a good memory, learn from the people: Practice remembering.
    小题1:The main reason for one’s poor memory is that _______.
    A．his father or mother may have a poor memory
    B．he does not use his arm or legs for some time
    C．his memory is not often used
    D．he can’t read or write
    小题2:If you do not use your arms or legs for some time _______.
    A．you can’t use them any more
    B．they will become stronger
    C．they become weak and won’t become strong until you use them again.
    D．they will become neither stronger nor weaker
    小题3:Which of the following is NOT true?
    A．Your memory works in the same way as your arms or legs.
    B．Your memory, like your arms or legs, becomes weak if you don’t give it enough chance for practice.
    C．Don’t learn how to read and write if you want to have a better memory.
    D．A good memory comes from more practice.
    小题4:Some people can’t read or write, but they usually have better memories, because _______.
    A．they have save much trouble
    B．they have saved much time to remember things
    C．they have to use their memories all the time
    D．they can’t write everything in a little notebook
    小题5:Which is the best title for this passage?
    A．Don’t Stop Using Your Arms or LegsB．How to Have a Good Memory
    C．Strong Arms and Good MemoriesD．Learn From the People

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Having one of those days—or weeks—when everything seems to annoy you? Even if you do nothing about it, your bad mood （心情）will probably go away after some time. But with a little effort, you can forget it much faster, often within a day or two.
    Walk it off
    Exercise is the most popular bad-mood buster. A person who’s in a bad mood has low energy and high tension. Taking a fast ten-minute walk, or taking some quick exercise can do wonders towards changing that bad mood.
    Tune it out
    Listening to your favorite music for a while can also make tensions go away quickly, because music starts associations with past positive experiences we’ve had.
    Give yourself a pep talk
    Stop and listen to what’s on your mind. Bad moods are often started by too many negative thoughts. Write them all down on paper, including the pessimistic（悲观的）messages you’ve been giving yourself and then give optimistic answers.（“I still don’t have a job.” Vs” I have two interviews next week.”）
    Reduce your stress
    Relaxation techniques are wonderful mood-lifters. There include de3ep breathing, stretching and visualizing, all of which sound complicated(复杂的)but aren’t. One easy way to visualize, close your eyes and picture a favorite place, such as the beach. Another simple way to unhappiness is to make a to-do list. One reason for being in a bad mood is feeling you have no options. By taking control over certain areas, you realize you’re not helpless. You can make changes in your mood and life.
    Avoid things that won’t improve your mood
    TV may not help much: you need to increase your energy level and stimulate（刺激）your mind-something that the TV show “Neighbors” won’t do. And before you reach for that piece of cake and coffee, think about how mood and food are linked. Sugar and caffeine contribute to depressed moods. The better choice? Research shows that carbohydrates, such as potatoes and pasta(面食), produce a calming effect on people who have a desire for them.
    小题1:Which of the following may help us stop a bad mood?
    A．Draw a picture of something complicated．B．Put more sugar into your coffee．
    C．Writing down negative thoughts．D．look ahead and write something positive．
    小题2:Why is it suggested that you close your eyes and picture the beach?
    A．It helps raise your spirits．B．It brings us a new technique．
    C．It is not complicated to do so．D．It is an area to be easily controlled．
    小题3:What can we infer from the passage?
    A．You don’t have to be nice to your neighborsB．you often feel powerful when in bad mood
    C．Some TV shows won’t energize youD．Slow exercise can gets you out of bad mood
    小题4:Which would be the best title for this passage?
    A．How to Beat a Bad MoodB．Energy Level and Stress
    C．Bad Mood and Our LifeD．How to Control Your Feeling

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    The World Health Organization says obesity rates are rising in Pacific island countries. So, too, are health problems linked to being overweight.
    The WHO says a major reason for the rising obesity rates is an increase in imported foods. It says many Pacific islanders have replaced their traditional diets of vegetables and fruits with imported processed foods.
    Dr.Temu Waqanivalu is with the World Health Organization’s South Pacific office in Suva, Fiji.He says many of the imported products lack nutritional value.
    Temu Waqanivalu said: “In some of the places, you’d be amazed to see how a bottle of Coke is cheaper than a bottle of water. I think that represents the kind of off­environment we’ve created that doesn’t really encourage or make lifestyle choices an easy choice for the population.”
    And a lack of physical activity among many Pacific islanders only adds to the obesity problem.
    The WHO says more than 50 percent of the population is overweight in at least ten Pacific island countries. The rate is as high as 80 percent among women in the territory（领地）of American Samoa. Fiji had the lowest obesity rate at 30 percent.
    In all, almost ten million people live in Pacific island countries. The WHO estimates that about 40 percent of them have health disorders related to diet and nutrition.
    Diabetes（糖尿病）rates are among the highest in the world. Forty-seven percent of the people in American Samoa have diabetes. So do 44 percent of the people in Tokelau, a territory of New Zealand.
    By comparison, the diabetes rate is 13 percent in the United States, a country that has its own problems with rising obesity.
    Officials also note an increase in nutritional problems like anemia and not enough vitamin A in the diets of Pacific islanders. Dr. Waqanivalu says treating conditions related to obesity and diet puts pressure on limited health resources and budgets.
    小题1:The main reason why obesity rates are rising in many Pacific islanders is ________.
    A．the change of society
    B．the change of eating habits
    C．the change of life style
    D．lack of exercise
    小题2:Imported products lack nutritional value but people love to buy them because they are ________.
    A．cheapB．popularC．tastyD．convenient to get
    小题3:How many people living in Pacific island countries have health disorders?
    A．1 million.B．4 million.C．6 million.D．10 million.
    小题4:The percentage of diabetes rates in American Samoa is ________.
    A．optimisticB．steadyC．worryingD．low

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Now, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements（补品），though expensive, are popular with people who worry that they are not getting enough vitamins from the foods they eat. But contrary to what many people think, medical experts have found little evidence that most supplements do anything to improve health or protect against disease.
    In fact, medical experts warn that taking too many of some vitamins can be harmful. For example, too much vitamin E can cause bleeding. People should discuss what vitamins they take with their doctors, as some vitamins can produce harmful side effects when mixed with medicines.
    Experts, however, do say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to take it from foods. Also, people who spend much time inside may need some extra vitamin D as the skin makes this vitamin from sunlight.
    Different vitamins are found in different foods. Vitamin A is found in fish liver oil. It also is in the yellow part of eggs. Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A. Vitamin B-twelve is found in green leafy vegetables and other foods, like fruits. Vitamin K can be found in pork products.
    In fact, for most people, a balanced diet can ensure enough of the vitamins our bodies need. So, it is important for us to eat a mixture of foods every day to ensure that we get enough vitamins our bodies need.
    小题1:Vitamin supplements are popular with people because ________. 
    A．people mistakenly think that they are good for their health
    B．they contain more vitamins than the foods people eat
    C．food does not provide enough vitamins people need
    D．people fear that a lack of vitamins will lead to disease
    小题2:From the passage, we can learn that medical experts advise people _________.
    A．never to take any vitamin supplements
    B．to depend only on food for their vitamins
    C．not to take any vitamins together with medicines
    D．to consult doctors before taking vitamin supplements
    小题3:For people who lack Vitamin B-twelve, they can eat more from _______.
    A. sweet potatoes   B. pork products   C. green leafy vegetables  D. eggs
    42. What would be the best title of the passage?
    A. Getting enough vitamins through a balanced diet.
    B. Vitamin supplements do harm to our health.
    C. Vitamins are important to our health.
    D. Lacking vitamins can cause many diseases.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    We can slow down aging. That is the message Dr. Shen Ziyin wants to give the world. And the Chinese doctor claims that he has found an answer to the problems of aging. His solution is a herbal medicine（草药）to slow the process of aging.
    Dr. Shen Ziyin has been trained in Western medicine. At the same time he studied traditional Chinese medicine. And, he has been working for the past forty years to put together the best of both and find a cure for aging. He has taken a hint from the ancient Chinese medicine system called “Shen”.
    According to Shen, it is the kidney（肾脏）which adjusts the functioning of the body as well as its aging process. It is responsible for the level of activity that the human bodies go through. Studies conducted by Dr. Shen show that herbal medicine based on the Shen system slows the aging process, says a report in the Telegraph newspaper. We notice that when people grow old, they have reduced strength, loss of hair, backache, weakness, wrinkles and so on. This happens because when people grow old, their bodies produce T-cells. These T-cells contain a particular substance called Fas. Fas makes the cells in the body destruct themselves.
    So the only way to slow down aging is to slow the production of T-cells in the body. This can happen if people eat low calorie food. Then the body is not active enough to produce extra T-cells. But, is going hungry all the time a good price to pay for staying young? This is where Dr. Shen’s herbal medicine comes in. But how effective it will be, only time can tell.
    小题1:How did Dr. Shen find the solution to the problem of aging?
    A．By studying Western medicine.
    B．By learning traditional Chinese medicine.
    C．By combining both Western and Chinese medicine.
    D．By doing research on both Western and Chinese people.
    小题2:What plays the most important role in keeping people young according to Shen?
    A．Medical treatment.
    B．Positive life attitude.
    C．People’s good kidney.
    D．Level of people’s activity.
    小题3:The reason why people become old is that    .
    A．their bodies produce T-cells
    B．they become weaker and weaker
    C．they have reduced strength, loss of hair
    D．their bodies are unable to fight diseases
    小题4:We can probably learn from the passage that    .
    A．producing more low calorie food allows people to keep young
    B．it remains unknown how effective Dr. Shen’s herbal medicine is
    C．people should try to quicken the production of T-cells in the body
    D．the more Chinese herbal medicine people drink, the better for health

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    If your preschoolers turn up their noses at carrots or celery, a small reward like a sticker for taking even a taste may help get them to eat previously disliked foods, a UK study said.
    Though it might seem obvious that a reward could encourage young children to eat their vegetables, the idea is actually controversial, researchers wrote in the American Journal of Clinical Nutrition. That’s because some studies have shown that rewards can backfire and cause children to lose interest in foods they already liked, said Jane Wardle, a researcher at University College London who worked on the study. Verbal praise, such as “Brilliant! You’re a great vegetable taster,” did not work as well.
    The study found t hat when parents gave their small children a sticker each time they took a “tiny taste” of a disliked vegetable, it gradually changed their attitudes. The children were also willing to eat more of the vegetables-either carrots, celery, cucumber, red pepper, cabbage or sugar snap peas-in laboratory taste tests, the study said.
    Researchers randomly assigned（分派）173 families to one of these groups. In one, parents used stickers to reward their children each time they took a tiny sample of a disliked vegetable. A second group of parents used verbal praise. The third group, where parents used no special vegetable-promoting methods, served as a “control”.
    Parents in the reward groups offered their children a taste of the “target” vegetable every day of 12 days, Soon after, children in the sticker group were giving higher ratings to the vegetables-and were willing to eat more in the research lab, going from an average of 5 grams at the start to about 10 grams after the 12-day experience. The turnaround also seemed to last, with preschoolers in the sticker group still willing to eat more of the once disliked vegetable three months later.
    Why didn’t the verbal praise work? Wardle said the parents’ words may have seemed “insincere” to their children.
    小题1:The purpose of writing the passage is       .
    A．to introduce a practical method of making children eat vegetables
    B．to show the procedure of an experiment on children’s diet
    C．to explain why children hate to eat vegetables
    D．to present a proper way of vernal praise to parents
    小题2:The underlined word “backfire” in Paragraph 2 probably means “           ”.
    A．shoot from behind the back
    B．make a lire in the hackyard
    C．produce an unexpected result
    D．achieve what was planned
    小题3:According to the passage, which of the following statements is true?
    A．Most children are born to dislike carrots or celery.
    B．It remains a question whether rewarding is a good way to get children to eat vegetables.
    C．Oral praise wokrs quite well in encouraging children to eat vegetables.
    D．Children in the sticker group will never lose interest in eating vegetables.
    小题4:How did the researchers get their conclusion from the experiment?
    A．By comparison.B．By asking questions.
    C．By giving examples,D．By discussion.
    小题5:What can we learn from the last paragraph?
    A．Children like rewards, not verbal praise.
    B．Parents should praise their children in a sincere tone.
    C．Children are difficult to inspire.
    D．Parents should give up verbal praise.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Researchers have announced the result of two studies on the health effects of the drug aspirin．One study shows aspirin can sharply reduce the chance that a healthy, older man will suffer from a heart attack．
    The study offered two new results from earlier findings, It said taking one aspirin pili every other day helped only healthy men over the age of fifty．It also said aspirin gave the greatest protection against heart attacks to men with low blood cholesterol（胆固醇）levels．
    Earlier in the United States began a major aspirin study in the early 1980s．It included 22,000 healthy men doctors．Ail were between the ages of forty and eighty-four．More than 11,000 of the doctors took a harmless pill that contained no drug．The men did not know which kind of pill they were taking．
    The doctors who took aspirin suffered 44% fewer heart attacks than those taking the harmless pill．139 men who took aspirin suffered from heart attacks．Ten of them died．239 men who did not take aspirin suffered from heart attacks．Twenty-six of them died．
    The researchers said the doctors' study provides clear proof that taking aspirin can prevent a first heart attack in healthy, older men．They said, however, the result does not mean every man over the mage of fifty should take aspirin．They said aspirin couldn't help men who do not eat healthy foods, who smoke cigarettes and who are fat．The researchers said men who think they wou3d be helped by taking aspirin should talk with their doctors first．
    小题1:We may learn that the new use of aspirin is ______．
    A．to treat heart disease
    B．to reduce the chance of a heart attack in old men
    C．to protect old men
    D．to reduce the blood cholesterol levels
    小题2:Aspirin can help those who ______．
    A．are older and healthy
    B．know how to keep fit
    C．are fat and smoke cigarettes
    D．are suffering from heart attack
    小题3:At last the researchers advised us to take aspirin _____.
    A．as we likeB．with careC．every dayD．if we are over fifty
    小题4:From the experiment we can conclude that about ______ of people who suffered from heart attacks without aspirin died．
    A．7%B．19%C．11%D．44%

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease－especially in changing our many unhealthy behaviors, such as poor eating habits, smoking, and failure to exercise. The line of thought about this shift can be pursued further. Imagine a person who is about the right weight, but does not eat very nutritious 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 just “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 attempting 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 struggle 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 influence on the ways in which people face the challenges of daily life.
    小题1:Today’s medical care is placing more stress on                .
    A．monitoring patients’ body functions
    B．removing people’s bad living habits
    C．ensuring people’s psychological well-being
    D．keeping people in a healthy physical condition
    小题2:Traditionally, a person is considered “well” if he or she                 .
    A．is free from any kind of disease
    B．does not have any physical handicaps
    C．attempts to maintain the best possible health
    D．keeps a proper balance between work and leisure
    小题3:According to the passage, which of the following is WRONG?
    A．Wellness is now just an ideal in many people’s mind.
    B．Someone who drinks a few beers at home most nights is not healthy.
    C．The concept of wellness can help people face the challenges of daily life.
    D．A man without any physical or mental problem may not be really healthy.
    小题4:According to the author, healthy people are those who                        .
    A．do not have any symptoms of disease
    B．have strong muscles as well as slim figures
    C．try to keep healthy as possible, regardless of their limitations
    D．can recover from illness even without seeking medical care

    查看答案和解析>>

    同步练习册答案