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
The speech tells us that to solve the problem of getting sunburned, we should
The speech tells us that to solve the problem of getting sunburned, we should
admin
2009-06-24
89
问题
The speech tells us that to solve the problem of getting sunburned, we should
Today we’ll go on to the second part of the "Skin Protection Series". Last time I said something about the importance of keeping our skin clean, and today I’ll give a talk on sunburn, followed by a talk on skin diseases next week.
Sunburn is a very common skin problem, especially in summer. The rays of sunlight are of several different kinds. Some of them, called actinic rays, cause the chemical changes that make photography possible and also cause your skin to become red and burned if you are exposed to them too long. Serious sunburns often occur at the beaches and on snow-covered mountains, where the glare of the sun is reflected back from the sand and water or snow and ice. Other rays of sunlight, called ultraviolet rays, supply needed Vitamin D to your body. Therefore it is helpful to your health to be in the sunlight but dangerous or at least unpleasant if you overexpose to the actinic rays which causes the condition known as sunburn. Hazy days also are dangerous, because the sunlight can burn the skin even when it has to come through clouds.
The problem is solved by exposing the body to sunlight gradually, for example, 15 minutes the first day, and a few minutes more each day after that, until the skin has a brown appearance that is called a suntan.
People with fair skins have to be much more careful than people with darker skins. Children and babies have very tender skin that burns easily.
If a person does get a sunburn he or she should stay out of the sun. A soothing dressing, applied to the burned skin, may help to relieve the pain.
选项
A、the sunlight is fiercer at the beaches than elsewhere.
B、the skin gets the glare of the sun reflected back from the water and sand.
C、the ultraviolet rays there are much stronger.
D、the sunlight can also get through the cloud.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/G8Td777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
A.oftheirkingB.fromtakingheavythingsC.ondifferentteamsD.byforeignersE.oftheirworkF.byordinaryEgyptiansT
GlobalWarmingFewpeoplenowquestiontherealityofglobalwarminganditseffectsontheworld’sclimate.Manyscientists
ADoctorintheHouseBrushingyourteethtwiceadayshouldkeepthedentistaway.Butifagroupofscientificresearchers
Practicallyallspeciesofanimalscommunicateeitherthroughsoundsorthroughalargerepertoryofsoundlesscodes.
AlaskaIn1959AmericanswelcomedAlaskaintotheUnionasthe49thstate,symbolizingachangeofattitudefromthatheldi
Johnhasalwaysremainedloyaltohisfamilyandfriends.
EatingMeat—LessorMore?EverysecondintheUnitedStatesalone,morethan250animalsareslaughteredforfood,addingup
HomeSchoolingAllchildrenintheUnitedStateshavetoreceiveaneducation,butthelawdoesnotsaytheyhavetobeeduc
Almosteveryoneatthemeetinghasdifferentviews.
Theauthorisprimarilyaddressing______.Thefirstparagraphismainlyabout______.
随机试题
直流伺服电动机的工作原理和普通直流电动机相同。()
1升世界卫生组织推荐的口服补盐液中含氯化钠为1升世界卫生组织推荐的口服补盐液中含氯化钾为
面目皮肤发黄,鲜明如橘色,脘腹胀满,不思饮食,恶心呕吐,口苦,舌苔黄腻,脉濡数,可诊为( )。
A、 B、 C、 D、 C由知,s(x)是f(x)的正弦级数的和函数,故对f(x)作奇周期延拓得F(x),则间断,再由迪利克来定理,
买方未在约定期限对引进设备进行检验,视为()。
从()时期开始,佛教思想注意与中国固有文化思想相通融,为佛学思想中国化开辟了道路。
Whenitcomestoleisureactivities,Americansaren’tquitethefunseekersthey’vebeensupposedtobe.(PassageThree)
在数据库系统的内部结构体系中,索引属于()。
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReadingPassage1below.Theeco
Whentheysawthatthemodelofplanetheyhadmadereally______intothesky,thechildrencheeredup.
最新回复
(
0
)