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
A、Being healthy and charming. B、To be wealthy and attractive. C、Being famous and attractive. D、To be healthy and accepted. A录音开头
A、Being healthy and charming. B、To be wealthy and attractive. C、Being famous and attractive. D、To be healthy and accepted. A录音开头
admin
2018-04-15
73
问题
Today, I’m going to talk about the health problems related to sun-tan. Sun-tan is preferred by lighter-skinned people, especially during the summer months. They like to give their skin a nice natural bronze color with the help of sun-tanning. Getting a natural tan is the sign of being healthy and being attractive. No wonder many people rush off to the beach at the onset of summer with their tanning lotions and laze away on a towel for hours on end. The result is healthy tanned skin, which people like to flaunt all day long. People often believe that a perfectly tanned skin improves their personality and the texture of their skin. However, it is not advisable to be in direct sunlight for a long time. Excess exposure of the skin to sunlight can actually damage the skin, and is the leading cause of skin cancer all around the world. Moreover, in countries like Australia, the atmosphere does not filter the sun rays completely, as the Ozone layer in the atmosphere is depleting quickly. The Ozone layer is responsible for filtering the harmful ultra-violet or UV rays of the sun that can damage the skin beyond repair.
So what does a tan mean? A tan refers to exposure of the skin to the rays of the sun for a considerable amount of time. Common skin diseases can be treated with ultra-violet light. These are just some of the many positive effects that the sun offers in the form of its ultra-violet rays. You should take the advice of experts if you would like to go for a natural sun-tan. Different skins react differently to sunlight, and expert opinion should be sought, especially in the beginning. The UVB rays of the sun encourage the cells of the innermost layer of the skin, to produce more melanin pigments, which on their way to the outmost layer are tanned by the UVA rays of the sun. As a result, Vitamin D3 is produced naturally under the sun. The vitamin helps protect the bone and also protects us from diseases. The direct rays of the sun also make the immune system stronger against the invasion of germs, and increase the body’s overall physical powers. It has a positive effect on the functioning of the heart, and improves blood circulation.
23 What is the sign of getting a natural tan?
24 Why is the Ozone layer so important?
25 What is the specific function of Vitamin D3?
选项
A、Being healthy and charming.
B、To be wealthy and attractive.
C、Being famous and attractive.
D、To be healthy and accepted.
答案
A
解析
录音开头讲到人们追求自然的古铜色皮肤,因为这是一种健康和有吸引力的象征。由此得出A项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/IJT7777K
0
大学英语六级
相关试题推荐
A、Electoralregister.B、Webber.C、Lerwick.D、Ex-pairing.D录音接着提到,此项研究姓氏的新项目数据部分来源于选举登记册,其它数据将由Ex-pairing提供,EX-pairing应该是目前英国最大的个
ShouldChildrenUseInternetasEarlyasPossible?1.目前,中国孩子接触网络的年龄越来越小2.有人认为孩子越早接触网络越好,也有人表示反对3.我的观点
A、Smokingispermittedintherooms.B、Nonoiseisallowedafter9pm.C、Studentscansmokeonthebalconies.D、Therearefixed
A、Humanbeingsaretheonlyanimalswhocanlaugh.B、Onestartslaughingwhenheisaboutsixmonthsold.C、Laughterhasmanyfu
A、Itwillremainthesame.B、Itsairwillbesuckedup.C、Itwillexplodeoutward.D、Itwillmovealittle.C原文提及“当内部气压大于外部气压时,建
A、Thewaterwillflowsouth.B、Thesealevelwillrise.C、Theoceanwillbecomemoreacid.D、Thefloodswilldestroycities.B女士
A、Therewardsfortheleader.B、Thereputationofaleader.C、Theapproachtoachievinggoals.D、Thepaymentofemployees.C本题为领
Theselfishnessofhumansisacentralassumptionoforthodox(传统的)economics,whereitisthoughttoleadtobenefitsfortheeco
A、Drugsmaycausehealthproblems.B、Drugsmaycauseviolentcrimes.C、Takingprescriptiondragsmaycausetrafficaccidents.D、
FiveMythsaboutCollegeDebt[A]Thetrillion-dollarstudentdebtburdenhascausedmanydebatesaboutthevalueofcollege.
随机试题
患者,女,29岁,左侧面神经麻痹5天,左眼闭合露睛,饮水外露,体质尚可,用药宜首选
酯苷醇苷
甲乙丙三人按份共有一匹马,其中甲占1/2,乙和丙各占1/4。下列哪一表述是正确的?
我国应坚持开发与节约并重、节约优先的方针,按照()原则,大力推进节能节水节地节材,加强资源综合利用,全面推行清洁生产,完善再生资源回收利用体系,形成低投入、低消耗,低排放和高效率的节约型增长方式。
在施工阶段,为了达到质量控制的目标,监理工程师应当做好的工作包括( )。
A、 B、 C、 D、 D本题属于位置类,主要考察了图形位置关系中的平移问题,第一组图形中,第一列,第三列黑块每次向上移动一格,触顶后返到底部。第二列,第四行黑块每次向下移动一格。第二组图形中,第一列图形每次
简要回答下列有关10Mb/s以太网的问题。简述10BaseT以太网系统的特点。
•Readthearticlebelowaboutthedifficultiesofmanagingasmallbusiness,andthequestionsontheoppositepage.•Foreachq
Non-VerbalCommunicationInthistalk,wearegoingtotalkaboutthedefinitionofnon-verbalcommunication,dimensionsof
LamarOdom,thestarforwardintheNBA,isknownforhisoutsizedloveofcandy,sometimeseating【C1】______bagsofchocolatean
最新回复
(
0
)