高考英语二轮专题检测精品练习：阅读理解（23）

　　A

　　A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin caner, actually increases the risk.

　　Researchers from the University of lows based their firdings on a review of 18 earlier studies that looked at the associstion between sunscreen use and melanoms(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 helpsprevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.

　　But questions have been raised about sunscreen and whether it may have the 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 concer—people with fair skin 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.

【2016届高考英语二轮专题检测精品练习：阅读理解（23）】相关文章：

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（3）及答案

★ 浙江省湖州市2014高考英语阅读理解一轮（暑假）精炼（19）含答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (44)

★ 2014届高考英语一轮复习必修3参考答案（外研版）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：技法7 画龙点睛的结束语（含解析）

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（2）附答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (1)

★ 四川省2016届高考英语一轮复习课时作业（41） Module 5 Ethnic Culture 外研版选修8

★ 2017年高考英语二轮复习精品资料：专题16 书面表达（押题专练）（原卷版）

★ 2017届高考英语二轮复习课时训练：9（含解析）