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
30
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,youareallowed30minutestowriteashortessayentitledOnFreeAdmissiontoParks.Youshouldwriteatleast
Forthispart,youareallowed30minutestowriteashortessayentitledOnConstellationCraze.Youressayshouldstartwitha
A、Americansvowtochangeit.B、Itisnotasbadasitusedtobe.C、Americansknowhowbaditistotheirhealth.D、Americansd
A、Climatechange.B、SecurityofInternet.C、Migrantandrefugeecrisis.D、Currencyexchangerates.C
A、Theyserveasanimportantenergysource.B、Theyprovidematerialfordailylife.C、Theyproduceoxygensowecanbreathe.D、T
Morethan15millionAmericansundergosurgeryeachyear,butsomeelectiveoperationsmaybemoreaboutthesurgeon’spreferen
Throughoutevolution,humanshavebeenactive.Ourancestorschasedpreyashunter-gatherersand【C1】______frompredators.Morer
KeepOptimisticandStayAwayfromDepression[A]Cynic,AmbroseBierceremarkedinhis"Devil’sDictionary",is"ablac
Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience.Andtheyalsoneed
随机试题
嗜酸粒细胞增加见于
下列各项,不得在市场销售的是
既能敛肺止咳,又能生津安蛔的药物是
A.麻黄、桂枝B.防风、杏仁C.羌活、防己D.银花、连翘E.银花、黄芩治疗急性肾炎风水相搏证偏风热者,宜在原方基础上加
下列关于监管部门对融资融券业务监管规定的说法中,错误的是()。
2013年1月1日,甲公司向乙公司租出全新的办公用房一套,租期为4年。该房屋原账面价值为1800万元,预计使用年限是30年,预计净残值为30000万元。租赁合同规定,租赁开始日,乙公司向甲公司一次性预付租金100万元,第一年年末支付租金80万元,第二年年末
()要求两路电源都能保证满负荷供电。
小兰购买某公司股票获得500元的投资收益,其收益主要来源于:
发起者无须花钱,在某种出版媒体上发布重要商业新闻,或者在广播、电视中和银幕、舞台上获得有利的报道、展示、演出用这种非人员形式来刺激目标顾客对某种产品、服务或商业单位的需求。这种销售策略是()。
PassageThree(1)Thepolicemanonthebeatmoveduptheavenueimpressively.Theimpressivenesswashabitualandnotfors
最新回复
(
0
)