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、They are active during the day. B、They are active at night C、They are sensitive to light. D、They can be easily separated. B讲座提
A、They are active during the day. B、They are active at night C、They are sensitive to light. D、They can be easily separated. B讲座提
admin
2021-07-23
67
问题
Some colors that people see late at night could cause signs of clinical depression. That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression.
Doctors use the words "clinical depression" to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed rats to different colors. The researchers chose rats because they sleep during the day and are active at night. The animals were separated into 4 groups. One group of rats was kept in the dark during their nighttime period. Another group was placed in front of a blue light, a third group slept in front of a white light. While a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the rats drank. They found that the more depressed animals drank the least amount of water.
Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed.
Randy Nelson notes that photosensitive cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle. He says there’s a lot of blue in white light, this explains why the blue light and white light make rats appear to be more depressed than the ones that see red light or darkness.
Mr Nelson has suggestions for people who work late at night, or those who like to stay up late.
If these people are just living a typical mostly active life during the day, mostly inactive at night, they want to limit exposure to TVs which are quite bluish in the light they give off, and computer screens and things like that. They can get filtered glass. They can get filters on computer screen and filters on eReaders to put it more in the reddish light.
19. What is the sign of clinical depression?
20. Why do the researchers choose rats in the study?
21. What kind of light makes the rats most depressed?
22. What is Mr. Nelson’s suggestion for people who work late at night?
选项
A、They are active during the day.
B、They are active at night
C、They are sensitive to light.
D、They can be easily separated.
答案
B
解析
讲座提到,研究人员选择老鼠(rats)的原因是因为它们白天睡觉,晚上活跃(active at night),B项“晚上活跃”正确。A项“它们白天活跃”与录音相反。C项“它们对光线敏感”没有在录音中提到。D项“它们可以很容易地被分开”利用录音中separated一词作干扰,该处录音是说将做实验的老鼠“分成”四组,与D项所述无关。
转载请注明原文地址:https://kaotiyun.com/show/S4J7777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayentitledToWorkforaLargeCompanyoraSmallOne?Youshould
Forthispart,youareallowed30minutestowriteashortessayentitledOnTeacherAppraisalSystem.Youshouldwriteatleast
A、Theycouldworktogetherwiththewhite.B、Theirchildrenstudiedinthesameschoolsasthewhite’s.C、Theysharedthesame
A、FriendshipsbetweenAmericansusuallyextenddeeplyintotheirfamilies.B、FriendshipsbetweenAmericansusuallylastforall
Morethan15millionAmericansundergosurgeryeachyear,butsomeelectiveoperationsmaybemoreaboutthesurgeon’spreferen
KeepOptimisticandStayAwayfromDepression[A]Cynic,AmbroseBierceremarkedinhis"Devil’sDictionary",is"ablac
A、Hewakesupveryearly.B、HestaysupwatchingTV.C、Heoftenplaysbaseball.D、Hehatesfruitsandvegetables.B女士最后建议男士早点睡觉,
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
A、Takinggoodcareofourchildrentomakethemfeelhappy.B、Findingcolorfulextracurricularactivitiesforourchildren.C、Ed
A、Peopleremembersongsinchildhoodclearly.B、Wordsinsongsaregenerallyeasywords.C、Weneedmusictolearndifficultlang
随机试题
简述专业书店的经营特点。
音频文件格式有很多种,下列不可能包含人的声音信号的是
导致慢性肺心病最常见的是
男,8岁。间断头胀、恶心想吐3个月。烦躁不安、面色苍白、多汗及视物模糊1天。测血压为200/140mmHg。血压呈阵发性升高,24小时尿游离去甲肾上腺素及VMA轻度增高。最可能的心电图改变是
利润慢慢由正变负是行业()的特点。
企业为客户提供的商业折扣和现金折扣应在实际发生时冲减当期收入。()
根据所给材料回答问题。(需计算后回答的问题须列出算式,小数保留2位。)为纪念中国共产党诞生90周年,某出版社将出版一本老红军的回忆录。该回忆录的正义文字(包括间空)约15万字。已设定开本为大32开。正文排版采用15级字,每面排29行,每行排29字
阅读文本材料和具体要求,完成下列问题。陈情表李密臣密言:臣以险衅,夙遭闵凶。生孩六月,慈父见背;行年四岁,舅夺母志。祖母刘悯臣孤弱,躬亲抚养。臣少多疾病,九岁不行,零丁孤苦,至于成立。既无伯叔,终鲜兄弟,门衰祚薄,晚有儿息。外
若以已建立的"tEmployee"表为数据源,计算每个职工的年龄(取整),计算公式为
Optimismcanhelpyoutobehappier,healthierandmoresuccessful.Pessimismleads,bycontrast,tohopelessness,sicknessand
最新回复
(
0
)