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We often hear advice from the dermatologists, " You should keep using sunscreen cream—just to be safe". More and more people are
We often hear advice from the dermatologists, " You should keep using sunscreen cream—just to be safe". More and more people are
admin
2011-04-05
49
问题
We often hear advice from the dermatologists, " You should keep using sunscreen cream—just to be safe". More and more people are questioning about sunscream. Can sunscreen cream help protect me against melanomas? How safe are we in applying these chemical cocktails? Does it actually stop melanomas, the most dangerous type of skin cancer, from forming? As is known to all, sunscreen cream can protect the skin from the harmful effects of sun. The most important function of it is the prevention of skin cancer. A great number of American people like to use it. Surprisingly , this kind of cancer is increasing in incidence faster than any other cancer in the United States. It seems that sunscreen actually increases the risk of skin cancer. More and more health experts are taking a discommendable attitude to the application of sunscreen.
Researchers show that the earlier finding has many flaws and is unable to prove the exact function because they fail to take into account many exceptional cases. For instance, some people prefer to use sunscreen cream while going out. However, sunscreen cream users suffer from cancer more often. In fact, sunscreen cream allows people to remain exposed in the sun longer. People are likely to get skin problem under the sunshine for a long time. Besides, many people use the sunscreen cream in an inappropriate way. The sunscreen cream should be applied about half an hour before going outside, so the time is enough for the sunscreen to soak in and take effect. In fact, the protection of sunscreen will not last indefinitely. It should be reapplied at least every two hours when people stay outdoors for a prolonged period. After swimming, bathing, perspiring heavily, or drying off with a towel or handkerchief, you had better reapply it, too.
Millions of gallons of sunscreen cream are consumed each year. Only 5% of products overall
met
the criteria for safety and sunscreen effectiveness. Three of five brand-name products can not protect the skin from sun damage sufficiently or they contain hazardous chemicals, according to a report by Environmental Working Group (EWG).
It is time to change our misunderstanding now. In fact, besides the sunshine-preventing function, it also has the function of protecting our skin. We all know that the sun impacts collagen production in the skin, and without collagen, skin won’t naturally maintain that plump, moist, youthful , wrinkle-free look . Without the protection of sunscreen cream, just a few minutes of daily sun exposure over the years can cause noticeable changes in skin. Sunscreen cream can protect our skin from these damaging rays, so that even if we do spend time outdoors, our face is less likely to give away our age.
Which of the following is true according to the passage?
选项
A、People could get skin problems using sunscreen cream.
B、People had better not reuse sunscreen cream when they are outside.
C、Sunscreen cream can not function after a long period.
D、We should abandon handkerchiefs to deal with skin problems.
答案
C
解析
根据第二段第一句“Researchers show that the earlier finding…”可知,已经表明了过去的发现有很多弊病,所以这种看法是不科学的。A项错误。根据该段倒数第二句和第三句“In fact,the protection of sunscreen will not last indefinitely.It should be reapplied at least every two hours when people stay outdoors for a prolonged period.”可知,防晒霜的作用不能无限持续,应该至少每隔两小时之后再次涂抹,B项与文意相反,同时可知C项正确;根据该段最后一句“After swimming,bathing,perspiring heavily,or drying off with a towel or handkerchief,you had better reapply it,too.”可知,在游泳、洗澡、流过大汗用毛巾或者手绢擦干后,最好再次涂抹防晒霜。D项“为了解决皮肤问题,我们应该扔掉手绢”,显然不合逻辑。故正确答案为C选项。
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