閱讀理解
       A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increase the risk.
       Researchers from the University of Iowa based their findings on a review of 18 earlier studies that
looked at the association between sunscreen use and melanoma (黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
       Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen
helps prevent skin cancer, which is increasing in incidence (發(fā)生率) faster than any other cancer in the
United States.
       But questions has been raised about sunscreen and whether it may has opposite effect, perhaps by
allowing people to remain exposed to the sun longer without burning.
       The researchers said that among the problems with some earlier studies is that they often failed to
take into account that those people most at risk for skin cancer-people with fair skin(白皙的膚色) and
freckles (雀斑), for example-are more likely to use sunscreen. As a result, it may appear that sunscreen
users get cancer more often.
       The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to
prove how well the products had been applied, said the new study.
1. The underlined word "flaws" in the 2nd paragraph most probably means          .
A. evidence
B. facts
C. faults
D. failures
2. People with fair skin and freckles         .
A. seldom use sunscreen
B. are more in danger of skin cancer
C. can be free from the harm of the sun
D. often expose themselves to the sun
3. We can learn from the passage that         .
A. sunscreen users get skin cancer more often
B. the volunteers have proved the effect of sunscreen
C. the new study was based on the experiences of volunteers
D. the number of skin cancer patients is increasing in America
4. Which of the following can be the title for this passage?
A. Sunscreen to Prevent Skin Cancer
B. Sunscreen to Increase Skin Cancer
C. Skin Cancer Caused by Sunscreen
D. Skin Cancer Caused by Freckles
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試題類型：閱讀理解  試題難度：一般  更新時間：2012/7/9 9:53:57
Nearly all of us have an unpleasant habit, whether we realize it or not, and we want to get rid of it but didn’t know the proper ways. Here’s some advice on how to get rid of bad habits.
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【小題1】在①處橫線上填入適當?shù)脑~。___________　___________
【小題2】將②處劃線部分翻譯成中文。
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科目：初中英語 來源：同步題 題型：閱讀理解

閱讀理解
                                                           Whose car?
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______________________________________
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______________________________________  
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閱讀理解。
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