首页
登录
职称英语
[originaltext] Today, I’m going to talk about the health problems related to
[originaltext] Today, I’m going to talk about the health problems related to
游客
2024-03-09
43
管理
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 consider able 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 al so 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:http://tihaiku.com/zcyy/3517737.html
相关试题推荐
[originaltext]Today,I’mgoingtotalkaboutthehealthproblemsrelatedto
[originaltext]Psychologistshavemanytheoriestoexplainhowwerememberi
[originaltext]Thisis4o’clock.Hereisthenewssummary.Therehasbeena
[originaltext]M:Hey.HaveyoueverheardoftheOscars?W:Well,Iknowthemq
E根据healthyoptimism和reality定位到E段第3句。该句是事TalBen-Shahar对healthyoptimism的解释,他认为健康
[originaltext]Goodmorning,IamTedHunter.TodayIamgoingtotalktoyo
[originaltext]Thankyouforcomingtomytalkthisevening.It’snicetose
[originaltext]InBritaintheweatherisnews.Atelevisionweatherforecast
[originaltext]W:Roger,anyproblemsinyourKoreanstudy?M:Thebiggestprobl
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
随机试题
Areyouawarethatyouactuallypossesssixsenses?Thesixthisamuscularse
VacationandTravelWhattoLookForBeforecommittin
Fancyathree-dayweekend—notjustonceinawhilebutweekinweekout?You
—WouldyoumindansweringafewquestionsforasurveyI’mdoing?—______—Howd
任务组织是指对建设工程项目实施的任务及其目标进行()以及对实施任务进行的计划、
肉芽水肿创面换药时宜用A.生理盐水纱布湿敷 B.油纱布覆盖 C.双氧水纱布湿
有关血栓闭塞性脉管炎治疗措施描述不正确的是A.鼓励病人戒烟 B.病人肢体发冷时
若将图示三铰刚架中AC杆上的力偶移至BC杆上,则A、B、C处的约束反力: A.
关于知识测验的客观题的描述,下列说法错误的是()A:答案是唯一的、封闭的 B:
期货投资者保障基金是在()严重违法违规或者风险控制不力等导致保证金出现缺口
最新回复
(
0
)