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    阅读理解。
          Every year, World Blood Day is celebrated by blood services worldwide on 14 June, the birthday
    of Nobel Prize winner Karl Landsteiner, the man who discovered the ABO blood group system. If you
    have every thought of becoming a blood donor, just register to do it. And you should never worry about
    the donation.
         Just under a pint (around 470ml) of blood is taken at one sitting. This amount is no more than 13
    percent of your total blood volume, and is quickly replaced by your body.
         It may come as a surprise, but whole blood is only rarely used. Different blood components are used
    to treat a range of conditions. None goes to waste. Red blood cells are frequently used to replace heavy
    blood loss after an accident, surgery or childbirth. White blood cells and antibodies (抗体) are used to
    help people fight infections if their immune system doesn't appear to be responding to antibiotics (抗生
    素). Plasma (血浆), the straw-coloured fluid which carries the blood cells and contains proteins, are
    used to treat burned patients.
         First-time donors should be aged between 17 and 65, weigh at least 50kg and be in good health. If
    you have donated before, you can start being a donor again up to your 70th birthday.
         Although most people are able to give blood, some people who pose health risks or are at a higher
    risk of having come into contact with an infectious disease are no tasked to be donors. Pregnant women
    or those who have had a baby in the last 9 months should not donate blood.
         Blood has a very short shelf life. Some blood components can be kept longer than others, for instance
    red blood cells will keep for 35 days but platelets(血小板)for only five. Remember, you should wait at
    least 16 weeks before donating blood again.
    1. People should never worry about the donation mainly because _____.
    A. it causes no pain to their body
    B. being a blood donor is a great honor
    C. their bodies can produce new blood soon
    D. people have a mature research on it
    2. What component of blood is used to treat burned patients?
    A. Plasma
    B. Red blood cell
    C. Antibody
    D. White blood cell
    3. We can learn from the passage that _____.
    A. whole blood is most widely used in hospital
    B. platelets can be kept for more than 10 days
    C. people can donate their blood four times a years
    D. people can donate at most 470 ml of blood each time
    4. Who can donate their blood?
    A. A teenager who is studying in a primary school
    B. A mother who is about to give birth to a new baby
    C. An adult who smokes and drinks from time to time
    D. A man just coming back for a place suffering from malaria
    5. What is the purpose of the author in writing this passage?
    A. To teach people how to be a blood donor
    B. To give people the knowledge of blood donation
    C. To advise people to benefit from blood donation
    D. To remind people of the importance of blood donation
    1-5: CADCB
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    阅读理解

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    (1)

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    [　　]

    A．

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    B．

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    C．

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    D．

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    [　　]

    A．

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    B．

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    C．

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    D．

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    [　　]

    A．

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    阅读理解。

          Ever since news of widespread food recalls caused by a carcinogenic dye (颜料) broke, there has been
    confusion over possible links to the country of the same name, but Sudan officials say there is no connection
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         Sudan 1 is a red industrial dye that has been found in some chilli powder, but was banned in food products
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         "We want to keep an eye on every detail and avoid any misunderstanding there," she said."Our embassy
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    But they told us there was no relationship."
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         Sudan dyes, which include Sudan 1 to 4, are red dyes used for colouring solvents (溶剂), oils, waxes,
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    1. What does the underlined word mean in paragraph one?
    A. Causing cancer.
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    C. Containing poison.
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    2. How did the Sudan 1 get its name?
    A. The dye is often produced in Sudan.
    B. The dye has something to do with the country named Sudan.
    C. Nobody is sure of the origin of the name.
    D. Many foods produced in Sudan contain the dye.
    3. We can infer from the passage that _____.
    A. the Sudan government is paying much attention to the food safety
    B. Sudan 1 is often used to be added to the food
    C. people didn't realize the danger of Sudan 1 until 2003
    D. many food shops will be closed down
    4. Which of the following is the best title?
    A. Keep away from Sudan 1
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    C. How Sudan 1 dye got its name?
    D. Pay attention to the food safety

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