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    阅读理解。
        Why don't birds get lost on their long migratory (迁居的) flights? Scientists have
    puzzled over this question for many years. Now they're beginning to fill in the blanks.
        Not long ago, experiments showed that birds rely on the sun to guide them during
    daylight hours. But what about birds that fly mainly by night? Tests with artificial (人
    造的) stars have proved conclusively that certain night-flying birds are able to follow
    the stars in their long-distance flights.
        One such bird-a warbler (鸣禽)-had spent its lifetime in a cage and had never flown
    under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The
    bird's cage was placed under an artificial star-filled sky at migration time. The bird
    tried to fly in the same direction as that taken by his outdoor cousins. Any change in
    the direction of the make-be-live stars caused a change in the direction of his flight.
        Scientists think that warblers, when flying in daylight, use the sun for guidance.
    But the stars are apparently their principal means of navigation (导航). What do they do
    when the stars are hidden by clouds? Apparently, they find their way by such landmarks as
    mountain ranges, coast lines, and river courses. But when it's too dark to see these, the
    warblers circle helplessly, unable to get their direction.
    1. The reasons why birds don't get lost on migratory flights _____.
    [     ]
    A. have been known to scientists for many years
    B. have only recently been discovered
    C. are known by everyone
    D. will probably remain a mystery
    2. Warblers migrate _____.
    [     ]
    A. from North America to South America
    B. only once during their lifetime
    C. using what is apparently an inborn navigational ability
    D. when they are freed from their cages
    3. When the stars are hidden by clouds, warblers find their way by _____.
    [     ]
    A. an artificial star
    B. their inborn ability
    C. some landmarks
    D. wind
    4. This article is a good example of the way scientists _____.
    [     ]
    A. jump to conclusions
    B. discover workable (可行的) answers to general questions by studying particular cases
    C. find a law and then investigate (调查)
    D. are disappointed by the habits of animals
    1-4: BCCB
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    科目：高中英语 来源：同步题 题型：阅读理解

    阅读理解。
         One year ago today, seven patients shared their stories of illness and recovery on the New York Time Well
    (a blog), according to a report published in April,2009.
         They were the first Patient Voices, a regular series that offers a first person (第一人称的) description of
    the challenges patients face as they deal with different kinds of health problems. Since the first Patient Voices
    appeared, New York Times producer Karen Barrow has continued to give a voice to a lot of patient stories.
         We heard from Jacqueline Castine of Bloomfield Hills, Mich,who had bipolar disorder (躁郁症), and whose
    son also suffered from mental (精神的) illness."I could not save him," she said."I could not fix (惩罚 ) him.
    He leaves a beautiful daughter and a very sad mother."
         And there is runner Alyssa Johnson,43,who was training for the Boston Marathon in 2003 when she began
    showing the first signs of Parkinson's disease." Sometimes when I'm running I'll come to a long downhill, and
    my legs work the way they used to work and my arm swings (摆动) the way it used to. It's like running before Parkinson's, and that's the best feeling.
         And then there's the voice of Robin Grinsted, 50, of Swansea, S. C.,who has H. I. V. She is refused by her
    church and feels lonely."They're not accepting," she said." But I know there will be people putting their arms
    around me some day."
          To hear more from these patients and the many others wh. have taken part in the series, explore the links (链接) below to all the Patient Voices we've heard from in the past 12 months.
    1. When did the seven patients begin to share their stories of illness?
    A. In 2009.
    B. In 2008.
    C. In 2003.
    D. In 2002.
    2. According to the passage, Patient Voices refers to ______ .
    A. a series of suggestions from patients
    B. a magazine published by patients
    C. a series of patients' stories
    D. a blog shared by patients
    3. From what Jacqueline Castine said, we know her son  _____.
    A. might have killed himself
    B. died of bipolar disorder
    C. was killed in an accident
    D. didn't want to stay at home
    4. What do we know about Alyssa Johnson?
    A. She tried hard to fight Parkinson's disease.
    B. She is preparing for the Boston Marathon.
    C. She was depressed at the thought of Parkinson's disease.
    D. She didn't like running before she had Parkinson's.

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