首页
登录
职称英语
[originaltext]W: Good morning, class. Today I thought we would talk about somet
[originaltext]W: Good morning, class. Today I thought we would talk about somet
游客
2023-08-13
25
管理
问题
W: Good morning, class. Today I thought we would talk about something bright and cheerful—the sun. Can anyone tell me how you feel when it’s sunny compared to how you feel when it’s cloudy?
M: I find that it’s a lot easier to get up in the morning if it’s sunny.
W: Well, what if I told you that it would rain for weeks on end with no break.
M: I don’t think I would like that very much.
W: Most of the articles we read lately regarding the sun are discussing the negative effects of staying in the sun for too long, saying that [1] ultraviolet radiation from the sun is a major cause of skin cancer. [2] Although these articles are factual, the sun does have some positive side effects as well. As a matter of fact some scientists believe sunlight may reduce the risk of several types of cancer.
M: Excuse me, but many articles that I’ve read state that it can take as little as 30 minutes to get a sun burn.
W: True, but in small doses, the sun can be quite healthy for you. In fact, recent studies have found that [3] sunlight can actually help protect you from certain types of cancer such as breast and stomach. More importantly, [4-1] the sun also provides us with our main source of vitamin D.
M: Well, I don’t need to worry about vitamins because I take multi-vitamins every day.
W: That’s great, but wouldn’t it be better if you didn’t have to take them and you were able to get vitamins in a more natural way such as food and the sun?
M: Does that mean we should spend all day in the sun without any protection?
W: No, [4-2] spending roughly ten minutes per day in the sun should be enough to supply us with all the vitamin D that we need.
Questions 1 to 4 are based on the conversation you have just heard.
1.What radiation from the sun is a major cause of skin cancer?
2.What does the teacher mainly want to tell her students in this class?
3.What kind of cancer may the sunlight protects us from?
4.What is the main function of sunshine when concerned with our bodies?
选项
A、Infrared.
B、Ultraviolet.
C、Visible light.
D、Sunspot.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2923840.html
相关试题推荐
[originaltext]Welcometothethirdlectureinourseriesonthefutureofs
[originaltext]Inthepastfewmonths,I’vebeentravelingforweeksatati
[originaltext]Inthepastfewmonths,I’vebeentravelingforweeksatati
[originaltext]Let’ssayyoustarttobrainstormalistofalltheemotions
[originaltext]Let’ssayyoustarttobrainstormalistofalltheemotions
[originaltext](13)It’snoaccidentthatmostgasstationshaveconvenience
[originaltext](13)It’snoaccidentthatmostgasstationshaveconvenience
[originaltext](13)It’snoaccidentthatmostgasstationshaveconvenience
[originaltext](9)DevilsTower,thefirstnationalmonumentinAmerica,coul
[originaltext](9)DevilsTower,thefirstnationalmonumentinAmerica,coul
随机试题
Forthispart,youareallowed30minutestowriteashortessayonthetopicDo
Theperiodofadolescence,i.e.,thepersonbetweenchildhoodandadulthood,
某化工企业的员工可能接触到环氧树脂、苯、苯酚、硫黄等危险化学品。下列伤害类型中,
关于招标工程量清单与招标控制价,下列说法中正确的有()。A:专业工程暂估价应包
锚喷支护属于被动支撑,因此一般用于自稳时间短、初期变形大或对地表下沉限制的地层。
初产妇妊娠36周,半月前反复无痛性阴道流血3次,量最多时如月经量。休息后血止,今
截至2018年底,中国人工智能市场规模约为238.2亿元,同比增长率达到56.6
下列有关细菌质粒的描述,错误的是A.不相容性B.质粒是细菌生命活动所必需的C.质
患者男,50岁,从1.5米高处摔下,右胸着地。体格检查:神志清,呼吸34次/分,
下列投资概算中,属于建筑单位工程概算的是()。A.机械设备及安装工程概算 B.
最新回复
(
0
)