首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Between now(June) and Labor Day, millions of American will offer up their bodies to the sun’s rays. A tan indicates health and b
Between now(June) and Labor Day, millions of American will offer up their bodies to the sun’s rays. A tan indicates health and b
admin
2011-01-06
47
问题
Between now(June) and Labor Day, millions of American will offer up their bodies to the sun’s rays. A tan indicates health and beauty, and most sun worshippers will sacrifice a lot to achieve it—including themselves. With each hour, the sun’s ultraviolet radiation produces irreversible damage, hastening the development of unsightly wrinkles. And with each year on the beach or rooftop, the sunbather increases his risk of getting skin cancer.
Skin cancer is by far the most common form of cancer. An estimated 400000 new cases will be detected this year in the United States, and almost all of them can be blamed on overexposure to the sun. Fortunately, most of these cancers are highly curable. But they can be disfiguring and take time to treat. For that reason, sun worshippers should treat deity with a good deal of awe.
Sunburn, of course, is the initial hazard posed by UV radiation. Prolonged exposure to UV, however, interferes with the production of collagen fibers in the dermis, causing the skin to lose elasticity and creating premature wrinkles. Further deterioration of the dermis deprives the epidermis of nutrition and causes it to become thin and dry.
Cancer is UV’s final insult. Short-wave radiant energy, especially from the UV-B band, breaks the strands of DNA. Enzymes work constantly to rearrange the DNA into proper sequence, but with repeated UV exposure, the repair process may eventually break down. Then the mutant DNA may produce a colony of cancer cells.
But skin cancer may be avoided with a good dose of common sense. People with fair skin and blue eyes who burn easily stand the highest risk. Special danger spots are the parts of the body most constantly exposed to the sun, such as the cheeks, nose, lower lip and the ears. People who have already developed precancerous lesions or had one skin cancer growth stand a greatly increased chance of developing others. Dermatologists recommend avoiding the sun when it is most intense—between 11 a.m. and 3 p.m. Anyone who insists on sunbathing should use a good sun screen. These lotions and salves contain chemicals, such as paraaminobenzoic acid, that block out the burning UV-B radiation while permitting the tanning rays to reach the skin.
The word "deity" in the second paragraph refers to
选项
A、something mysterious
B、the skin cancer
C、the sun
D、overexposure to the sun
答案
C
解析
该段讲了日晒过多会得皮肤癌,“sun worshippers should treat deity with…”中的“deity”本指神、上帝,这里显然指太阳。
转载请注明原文地址:https://kaotiyun.com/show/AEmd777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
1.AreportconsistentlybroughtbackbyvisitorstotheUSishowfriendly,courteous,andhelpfulmostAmericansweretothem.
MillionsofAmericanslackhealthinsuranceand,withtheeconomyfloundering,thatislikelytoincrease,theNationalAcademy
IntheUnitedStates,itisimportanttobepunctualforanappointment,aclass,ameeting,etc.Thismaynotbetrueinallco
Playistheprincipalbusinessofchildhood,andinrecentyearsresearchhasshownthegreatimportanceofplayinthedevelopm
1.TheUSeconomy,whichmakesuponequarterofworldeconomicoutput,isslowingsharply,andbringingdowngrowththroughthe
Readthefollowingarticleandchoosethebestwordforeachspace.Forquestions26-45,markoneletterA,B,CorDonyou
Lookatthetenstatementsforthispart.Youwillhearatalkabout"ANewChangeofAmericanImmigrationSystem".Dec
Lookatthequestionsforthispart.Youwillhearamantalkingabouthisfather.Forquestions24-30,indicatewhicho
MOUNTAINCLIMBINGOneofthemostdifficultbutrewardingofpastimesisthesportofmountainclimbing.Mountainclimbing
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytod
随机试题
下列各疾病中,会出现Auer小体的是
A.轮状病毒肠炎B.空肠弯曲菌肠炎C.真菌性肠炎D.致病性大肠杆菌肠炎E.假膜性肠炎黄稀便带泡沫、黏液及豆腐渣样细块。可能的诊断是
沙眼衣原体感染,首先形成急性子宫颈炎的原因是
普鲁卡因不宜用于哪一种局麻
房地产经纪行业公平性管理的内容包括()。
AIA制定的合同条件是用于( )方面的合约文件。
建筑新技术、新工艺和新材料应用方案经济分析常用的静态分析方法有()。
一位老师在进行语文课文《萤火虫》教学时有这样一个片断:老师问学生,萤火虫燃烧了自己,怎么了?有的孩子回答说,萤火虫燃烧了自己,它就死了;也有孩子说,萤火虫燃烧了自己,它没有怎么,只是一种生理现象;还有一部分孩子有一些其他理解。老师无法对这些理解给予肯定,因
在Linux操作系统中,如果我们先用mount命令加载光驱设备到/mnt/cdrom下,接着我们cd进入该目录,但用Is列出光盘内容后,我们需要换一张CD,这时我们需要先执行______操作。
Theforeignstudentsadvisorrecommendedthatwe(study)______moreEnglishbeforeenteringtheuniversity.
最新回复
(
0
)