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    A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.
    Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease, according to the study.
    Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres - a biological marker of ageing found in DNA．As people get older, their telomeres get shorter and they are easy to have illnesses.
    But the study found women with high levels of vitamin D had comparatively longer telomeres - a sign of being biologically younger and healthier.
    The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.
    Lead researcher Dr Brent Richards said: "These results are exciting because they prove for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．
    "This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."
    He said further studies are required to confirm the findings.
    Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process."
    Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.
    Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.
    64．What’s the best title of this passage?
    A．Sunshine 'helps to keep you young'
    B．Vitamin D has a protective effect on many diseases
    C．Telomeres - a biological marker of ageing
    D．People have found the secret to having a long life
    65．How can people get vitamin D?
    A．through water           B．through sunshine     
    C．through food               D．both B and C
    66．What does the underlined word in paragraph three refer to?
    A．It refers to a kind of vitamin that can keep you young.
    B．It refers to a biological marker of ageing found in DNA.
    C．It refers to a kind of element that can be obtained from sunshine.
    D．It refers to a part of the body.
    67．Which of the following is not true according to the passage?
    A．women with high levels of vitamin D shows a sign of being biologically younger and healthier.
    B．vitamin D has a protective effect on many ageing related diseases.
    C．too much sunshine may increase our risk of skin cancer.
    D．It has been proved that sunshine 'helps to keep you young'.
    64-67 ADBD
    英国科学家日前公布，长期坚持晒太阳可能是永葆青春的秘诀。
    64．主旨大意题。根据文章第一段主题段可以看出，长期坚持晒太阳可能是你永葆青春的秘诀。
    65．细节理解题。根据倒数第二段Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.可以看出，维生素D主要通过日晒获得，也可通过食物获得。
    66．词意理解题。根据第三段第二行：looking at their telomeres - a biological marker of ageing found in DNA.可以看出，telomeres，是位于染色体末端的DNA微粒。
    67．细节判断题。根据倒数第四段He said further studies are required to confirm the findings.可以看出，还需要进一步的研究证实这项发现。
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    科目：高中英语 来源：不详 题型：阅读理解



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    科目：高中英语 来源：不详 题型：阅读理解


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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解


    It’s not always easy to eat healthy foods when others seem to eat whatever they want. Follow the tips and know that it will make a difference in your life.
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    Everyone likes the taste of sweet foods! Small amounts of sweet foods can be part of a healthy meal plan. Sugary foods include soda, sweetened fruit drinks, honey, and candy. Desserts such as cakes, pies, cookies, and ice cream contain a lot of fat as well as sugar. If you choose to eat any of these sweet foods, just have a small amount at the end of a healthy meal. Have a piece of fruit if you are still hungry. Drink water, sugar-free soda, and sugar-free fruit drinks, if you are thirsty, instead of drinks that are all high in sugars.
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    科目：高中英语 来源：不详 题型：阅读理解

    Peanut allergies (过敏) are among the most common and most dangerous of food allergies. A tiny exposure to peanuts can mean big trouble for a person with a peanut allergy—not just sneezing or coughing，but something as potentially deadly as narrowing of the airways.
    But a recent study suggests that some children may be able to beat back their allergic reactions to peanuts by gradually introducing trace amounts of the nut into their diets. It's too early to say for certain，so if you have a peanut allergy，do not try this at home. But the first results look promising.
    Two teams of scientists have been experimenting on a group“of 29 children who are allergic to peanuts”At the beginning of the study，each kid received less than 1/1，000 of a peanut per day. (Imagine splitting a peanut into 1，000 parts!) Over the course of the study， the children gradually increased the amount of the peanut in their diets
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    The two teams of scientists are now doing a follow-up study on two groups of children with the allergy. Children in one group will receive the new therapy，while the others will not. Researchers hope this study will help them learn if the therapy truly does work.
    Scientists don't understand why some people get peanut allergies and others don't，but are trying to find a way to help people with the allergy. Because of the severity of some peanut allergies，scientists want to know the answer as soon as possible. “This is very encouraging， but remember，it's not something you try at home，”says one of the researchers.
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    D. is considered the least common and dangerous food allergy
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    A. exposing children with the allergy to as many peanuts as possible
    B. changing the eating habits of children with peanut allergies gradually
    C. giving children Peanuts in slowly increasing amounts
    D. exploring ways to resist the feelings caused by peanut allergies
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    D. about 55-percent children with peanut allergies have been cured
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    A. explore why some people get the illness while others don’t
    B. show whether peanut allergies can really be dangerous
    C. check whether the therapy really works or not
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    科目：高中英语 来源：不详 题型：阅读理解

    If you know exactly what you want, the best way to get a job is to get specialized training. A recent report shows that companies like graduates in such fields as business and health care who can go to work immediately with very little on-the-job training.
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    For a liberal – arts degree, students focus on some basic courses that include literature history, mathematics, economics, science, human behavior and a computer course or two. With these useful and important courses, you can feel free to specialize, “A liberal-arts degree coupled with an MBA or some other technical training is a very good combination in the marketplace,” says Scheetz.
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    A．special training in special fields
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    C．formal schooling and work experience
    D．an MBA degree from top universities
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    B．MBA programs will not be as popular as they are now
    C．people will not forget the degree the MBA graduates have got
    D．most MBA programs fail to provide students with a foundation
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    B．they can do better in bundling changing situations
    C．they are well trained in a variety of specialized fields
    D．they have attended special programs in management
    70．The author supports the idea that          .
    A．on – the – job training is less costly in the long run
    B．formal schooling is less important than job training
    C．specialists are more expensive to hire than generalists
    D．generalists will do better than specialists in management

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