阅读理解 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 r 题目和参考答案——青夏教育精英家教网—

题目内容

阅读理解

       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 (发生率) 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(白皙的肤色) 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

1-4 C B D A

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试题类型：阅读理解  试题难度：一般  更新时间：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.
n Make a list.   Write down all the reasons why you want to stop a certain behavior----how it’s hurting you and why getting rid of it will help. Look at that list regularly.
n Join other activities. ②It’s wise of you to do something else when you want to stop your bad habits. If you get angry easily, for example, you can practice deep breathing or go for a walk.
n Give yourself a reward. Before you get rid of a bad habit, decide what you’ll do to celebrate it if you achieve your goal.
n Keep off bad habits.    If you are fat and want to lose weight, keep junk food(垃圾食品) out of your house. If you are a heavy smoker, keep away from smoky bars or friends who like smoking.
n Be patient.    Bad habits develop over years, so you probably won’t be able to get rid of them quickly. In fact, people often give up several times before being successful, so you should ① ___________ ___________.
n Find support.  Don’t be afraid to ask for support from friends, family or other people who have the same bad habits as you. When you talk to others, they might be able to give you some advice or encouragement that you normally wouldn’t get from yourself.
【小题1】在①处横线上填入适当的词。___________　___________
【小题2】将②处划线部分翻译成中文。
【小题3】回答问题How many suggestions are offered to help you get rid of bad habits?
【小题4】找出并写出所给句子的同义句。
You should be brave enough to get help from your friends, family or other people, because they may have the same bad behavior as you.
【小题5】找出并写出最能表达该短文主题的句子。