Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer， saying studies showed a clear link. "Our suggestion is for people to increase their intake， through diet or a vitamin supplement，" Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies， including several large long-term ones， on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. "There's nothing that has this ability to prevent cancer，" he said， urging governments and public health officials to do more to fortify foods with vitamin D.Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health.    Vitamin D is found in milk， as well as in some fortified orange juice， yogurt and cheeses， usually at around 100 international units （IU） a serving. People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day， Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas， which receive less vitamin D from sunshine.
African Americans， who don't produce as much of the vitamin because of their skin colour， could also benefit significantly from a higher intake， the authors said.
【小題1】 According to the passage， people are advised to take more Vitamin D because_________.

A．it is nutritious
B．it can‘t harm people’s health
C．it is not taken enough every day
D．it can lower cancer risk
【小題2】 Which of the following can not help people get more Vitamin D？
A．Have more meat B．Have some sunshine
C．Have a vitamin supplement D．Have more fortified cheese
【小題3】Who can Garland probably be？
A．A scientist B．A health researcher
C．A doctor D．A public health official
【小題4】Which of the following food can lower people‘s chance of getting cancer？
A．Fortified orange juice B．Milk
C．Fortified yogurt D．All of the above
【小題5】People from which area should take more Vitamin D according to the passage？
A．Asian people B．American people
C．European people D．African people


【小題1】D
【小題2】A
【小題3】B
【小題4】D
【小題5】D

解析試題分析：文章介紹了研究表明維他命D可以降低患癌癥的幾率，并且告訴了讀者幾種獲取維生素D的方法。
【小題1】細(xì)節(jié)題。根據(jù)文章中專家所說的話take more vitamin D to lower risk of cancer，可得知多吃維他命D可以降低患癌癥的幾率應(yīng)該選擇，選D
【小題2】細(xì)節(jié)題。在文章中尋找有關(guān)于維他命D的食物來源，Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses，并沒有提到肉，所以選A
【小題3】推理題：文章的第一句話Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer可知這是研究人員的花，第一段的最后一句話Dr. Cedric Garland said in a telephone interview.可以推斷出： Dr. Cedric Garland是一個(gè)健康研究人員。選B
【小題4】細(xì)節(jié)題。維他命D可以降低癌癥幾率，所以我們要找到可以獲取維他命D的來源Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses,D項(xiàng)包含了這些食物。所以選D
【小題5】推理題：從最后一段的句子：“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.可以推斷出非洲人應(yīng)該多攝入維生素D。選D
考點(diǎn)：考查健康類短文

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes--Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters (厘米) from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times. If you use a keyboard for a long time, follow this rule: Stop sometimes and exercise your hands and fingers in different ways.
Your back--Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back and your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
【小題1】How many kinds of computer injuries are mentioned in this passage?

A．One.B．TwoC．Three.D．Four.
【小題2】A computer screen may injure your eyes if        .
A．you sit 60 centimeters away
B．you remember to look away
C．your eyes are too close to it
D．the window is on your left or right
【小題3】Your eyes and hands will be safe if _________.
A．you work near a window
B．you often take rests from working
C．you use a keyboard for a long time
D．the window is behind you
【小題4】Which sentence is NOT true according to this passage?
A．You should sit with your back straight while you work on a computer.
B．Staying in front of a computer too long may injure your eyes.
C．When you work on a computer, your hands almost move in the same way.
D．The writer thinks that computer is bad for your health.
【小題5】What would be the best title for the text?
A．How to protect your eyes
B．How to protect your hands
C．How to use a computer safely
D．How to protect your back

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Is crying good therapy? Experts say yes. Having a good weep at the weekend is becoming more popular among office workers in China.
“I need to cry to let my feeling out,” said 22-year-old Guo Meng, a smart-looking young woman. “I remember one day when I got home I felt so down but I had no one to talk to, so I just curled up(蜷縮) with my teddy bear and cried myself to sleep,” Guo said. The next day, she said, she felt much better and life seemed not so bad after all.
Because crying is taken as a sign of weakness, people make a great show of being strong and not displaying emotion. Psychologists and medical practitioners agree that crying is beneficial for mental health but people still regard it as a sign of failure and bottle up their feelings. A famous Chinese author once said to cry is normal, and even brave. Those who display their emotions can deal with their troubles bravely after the tears dry, while those who soldier on let problems fester（惡化）.
In the Chaoyang district of Beijing, there is a special place for people to cry their sadness out. It is called “Cry Bar”. On the door of each of its “cry rooms” there is a saying encouraging people to let the tears flow freely.
“Crying is a kind of therapy, but it needs some direction,” said Milulu, a psychologist.
“People should realize the point of crying is to relieve pressure, but some of the young people who come to the Cry Bar simply sit and weep. The purpose of crying is to make it easier to improve your life after the tears dry, not to get lost in bad memories.”
Crying is only one way of relieving pressure, and we need to face problems squarely and solve them once the tears have dried, said Mululu.
【小題1】Crying _____ made Guo Meng feel better.

A．with some friend B．a(chǎn)ll the night with a toy
C．during her sleep D．in bed before sleep
【小題2】According to the third paragraph, people usually make great efforts to_____.
A．get rid of their sadness B．bottle up their feelings
C．a(chǎn)ct on psychologists’ advice D．face their troubles bravely
【小題3】What should the customers do at the Cry Bar?
A．Think of every sad experience they’ve had and cry
B．Keep crying as loudly as long as possible.
C．Satisfy any desire to cry and weep until it is gone.
D．Hold back their tears until they can’t help but cry.
【小題4】From the text, we can learn that crying ____.
A．is to relieve pressure B．must help to solve problems
C．means facing problems squarely D．can’t weaken sad feelings.

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Good health is the most valuable thing a person can have but one cannot take good health for granted .It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape, eat right food, get enough sleep, and exercise regularly.
Proper nutrition  is  important for good  health.  Your body cannot work well unless  it receives the proper kind“fuel"．Don't eat too much food with lots of sugar and fat, Eat plenty of foods high in protein, like meat fish eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins and minerals.  However  don't overeat It is not helpful to be overweight
Getting the proper amount of sleep is also important.  If you don't get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little amount of sleep may even result In a change of personality（人的個(gè)性)．Be sure to allow yourself from seven to nine hours of sleep each ,If you do, your body will feel strong and refreshed ,and  your mind will be sharp．
Finally, get plenty of exercise Exercise firms the body, strengthens the muscles, and prevents you from gaining  weight  It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span（壽命)．An kind of exercise is good. Most sports excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on. Sports are not only good for your body, but they are enjoyable and interesting, too.
If everybody were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.
【小題1】In order to keep good health______.

A．we should eat a lot of sweets
B．one needs a large amount of fat
C．we must try to sleep now and then
D．people should eat according to the foods nutrition
【小題2】Eating more and sleeping less_______.
A． can keep healthy B． is no good for you
C． gets you more energy D． will keep your personality
【小題3】The writer explains ________in the 4th paragraph.
A． how to eat B． what to eat
C． how to keep healthy D． the importance of doing exercise
【小題4】The title for the article should be“_______".
A． Eating and Exercising B． How Vitamins Work in Man's Body
C． Staying Healthy D． Sleeping Well

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Babies are born yogis. Once we were all able to pull our toes up by our ears and laugh about it. Then we aged, got injured, and began carrying stress in our shoulders and back. In short, we lost our balance.
Yoga（瑜伽） is an ancient practice that helps create a sense of union in body, mind, and spirit. It brings us balance. I was seriously out of balance when I started practicing yoga in 1999. I had plantar fascitis in both feet, and my doctor had warned me against all the things I loved to do: walking, hiking, and playing tennis. I was desperate for exercise. Yoga became my salvation and even enhanced my other fitness activities. I practice yoga at least twice a week, but I consider yoga to be part of my daily life because after a while you no longer just practice yoga—you love it.
Yoga becomes part of your physical life. Your body grows stronger, more toned, and more flexible as you move from one pose to the other. I spent a week in Mexico at a yoga retreat, and it was the first vacation on which I lost weight. “Rather than building muscle, yoga builds muscle tone,” says Shakta Kaur Khalsa, author of the K.I.S.S. Guide to Yoga. “Because yoga helps maintain a balanced metabolism (新陳代謝), it also helps to regulate weight. Additionally, yoga stretches muscles lengthwise, causing fat to be removed around the cells.” I do yoga poses throughout the day. After hours at my computer, I stretch my stiff shoulders and arms. When I need a boost of energy, I do energizing poses. When I am feeling exhausted at the end of the day, I do restorative poses.
Yoga becomes part of your mental life. Yoga teaches you to focus on breathing while you hold the poses. This attention to breath is calming; it dissolves stress and anxiety. I use yogic breathing on the tennis courts, in the dentist’s chair, and in traffic jams. You should always leave a yoga practice feeling energized, not tired. If you feel tired after yoga, it means you spent the time “fighting” yourself, trying to force yourself into poses. In yoga, you “surrender” to the pose by letting go of the tension.
Yoga becomes part of your spiritual life. Yoga is practiced by people from all religions; it is not restricted to any religious group. Yoga teaches “right” living in how we deal with ourselves and others. As I work on a difficult pose, I learn patience, forgiveness, and the value of gentleness. Yoga advocates proper eating, but you don’t have to be a vegetarian to practice yoga.
【小題1】What would be the best title for this passage?

A．What’s Yoga?B．The Benefits of Yoga
C．How I Do Yoga PosesD．The Varieties of Yoga
【小題2】According to the third paragraph, yoga can help people __________.
A．grow tallerB．lose weight
C．become flexible in thinkingD．make more friends
【小題3】People feel tired after yoga because __________.
A．they spend too much time on yoga
B．they respond well to yoga poses
C．they force themselves into yoga poses
D．they consume energy in practicing yoga
【小題4】If this passage continues, what will the writer most probably write about in the next paragraph?
A．Yoga as a means to keep fit.
B．Different yoga poses.
C．Popularity of yoga all over the world.
D．Encouraging people to do yoga.

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

New research suggests that speaking more than one language may delay different kinds of dementia(癡呆), that is the loss of mental ability. In fact, researchers say, speaking two languages appears to be more important than the level of education in defending against dementias.
A study in India examined the effect of knowing more than one language in delaying the first signs of several dementias. Researchers studied nearly 650 people whose average age was 66. 240 of those studied suffered from Alzheimer's, the most common form of mental decline(下降). 391 of the subjects spoke two or more languages. Researchers found the dementias began about four-and-a-half years later in those who spoke two languages compared to those who spoke only one language. The level of education had no effect on the age at the first sign of dementia.
Thomas Bak, from the Center of Cognitive Aging at the University of Edinburgh in Scotland, who helped to organize the study, suggests that individuals who speak more than one language train their brains by moving back and forth between different words and expressions. He also believes this effort improves what scientists called executive(執(zhí)行的) functioning, which often weakens in people with dementias. He states that researchers found there was no extra gain in speaking more than two languages.
Mr Bak says it does not appear important whether you learn another language at a young age or later in life. It's not something that “you missed the boat when you do not do it as a baby.” It is something that is still quite useful and powerful when you do it as an adult.
【小題1】The finding of the study is that________.

A．learning more than one language can cure dementias
B．speaking two languages may delay kinds of dementias
C．the level of education matters in defending against dementias
D．people who suffer from dementias will lose mental ability
【小題2】The underlined word “subjects” refers to________.
A．people who were studied in the study
B．notices that were put on about the study
C．questions that were asked in the study
D．methods that were used in the study
【小題3】According to Mr Bak, ________.
A．the more languages one speaks, the less chance of getting dementias
B．people’s executive functioning often strengthens with age
C．when you learn one more language makes no difference
D．it is much easier to learn one more language at a young age
【小題4】This passage may probably be seen in________.
A．a(chǎn) research plan B．a(chǎn) health magazine
C．a(chǎn) book review D．a(chǎn) business magazine

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

People who averaged fewer than seven hours of sleep per night in the weeks before being exposed to the cold virus were nearly three times as likely to get sick as those who averaged eight hours or more, a new study found.
Researchers used frequent telephone interviews to track the sleep habits of more than 150 men and women aged 21 to 55 over the last few weeks. Then they exposed the subjects to the virus, quarantined (檢疫隔離) them for five days and kept track of who got sick.
Besides sleeping more, sleeping better also seemed to help the body fight illness: Patients who fared better on a measure known as “sleep efficiency”—the percentage of time in bed that you’re actually sleeping—were also less likely to get sick.
The results held true even after researchers adjusted for elements such as body-mass index, age, sex, smoking and pre-existing antibodies (抗體) to the virus.
The researchers aren’t exactly sure why sleeping better makes you less likely to develop a cold. But they do try to give an answer: “Sleep disturbance influences the regulation of symptom mediators (調(diào)節(jié)因子) that are released in response to infection.” In plain English, maybe tossing and turning when you’re infected with the cold virus contributes to the symptoms that define a cold.
The researchers were based at Carnegie Mellon, the University of Pittsburgh and the University of Virginia, and the study was funded by the National Institutes of Health.
【小題1】 According to the passage, what does the underlined word “subjects” mean in paragraph 2?

A．a(chǎn)reas of knowledge in a school
B．people being studied in an experiment
C．research topics
D．a(chǎn)nimals being tested
【小題2】It is shown in the passage that _______.
A．the researchers obtain information about the sleep habits by frequent interviews
B．the researchers do their research in the National Institutes of Health
C．people hope to avoid being infected with a cold by sleeping as much as possible
D．sleeping more and better helps regulate the symptom mediators
【小題3】What’s the best title of the passage?
A．The Relationship Between Virus and Cold
B．How to Sleep Well
C．Good Sleep Helps Fight a Cold
D．The More the Sleep, the Better Your Body

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

“Our aim is to take our art to the world and make people understand what it is to move,” said David Belle, the founder of parkour (跑酷).
Do you love running? It is a good exercise, yet many people find it boring. But what about making your morning jog a creative one? Like jumping from walls and over gaps, and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond's wonderful performances that the sport has become popular worldwide.
Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.
Parkour can be just as exciting and charming as it sounds, but its participants see parkour much more than that.
Overcoming all the obstacles on the course and in life is part of the philosophy behind parkour. This is the same as life. You must determine your destination, go straight, jump over all the barriers as if in parkour and never fall back from them in your life, to reach the destination successfully. A parkour lover said, "I love parkour because its philosophy has become my life, my way to do everything."
Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.
【小題1】Parkour has become popular throughout the world because of________.

A．its founder, David BelleB．the film, Casino Royale
C．its risks and tricksD．the varieties of participants
【小題2】The underlined word "obstacles" in Paragraph 2 is closest in meaning to “_______”. 
A．streetsB．objectsC．barriersD．roofs
【小題3】 Which of the following statements is TRUE of parkour?
A．It challenges human abilities.B．It is a good but boring sport.
C．It needs special training.D．It is a team sport..
【小題4】As its participants move around a city, they tend to __________.
A．reach the destination as soon as possible
B．choose the easiest way
C．challenge extremes
D．consider safety first

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

查看答案和解析>>

同步練習(xí)冊答案