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
More and more people are taking their tablet computers to bed to surf the web or check Facebook or e-mails before【B1】_____ the l
More and more people are taking their tablet computers to bed to surf the web or check Facebook or e-mails before【B1】_____ the l
admin
2016-03-29
76
问题
More and more people are taking their tablet computers to bed to surf the web or check Facebook or e-mails before【B1】_____ the light. But using tablets like iPad just before bed can lead to a poor night’s sleep, according to research.
Researchers are warning that the blueish light their screens【B2】______can stop users getting a good night’s sleep. That is because this type of light mimics daylight, convincing the brain that it is still daytime. Blue light【B3】_____ production of a brain chemical called melatonin, which helps us fall sleep. This is because our brains have【B4】_____to be wakeful during daylight hours. By contrast, light which is more orange or red in tone does not restrain melatonin production, perhaps because our brains recognize it as a【B5】_____that the day is ending.
Neurologists have known for years that【B6】_____ screens late in the evening can disrupt sleep. Researchers at the Lighting Research Centre say: "Although turning off devices at night is the【B7】_____ solution, it is recommended that if these devices are used at night displays are dimmed as much as possible and that the time spent on them before bed should be【B8】_____." They drew their conclusions after measuring melatonin levels in 13 volunteers, after they had spent time【B9】_____iPads at full brightness at a distance of 10 inches, for two hours.
However, these studies tend to be【B10】_____of those with chronic sleep disruption, such as long term shift workers, with those who have normal sleep patterns.
【B1】
选项
答案
switching off
解析
根据空格所在位置及空格前的before可知,空格处应填入动词(词组)的-ing形式。结合录音可填入switching off,意为“关上”。
转载请注明原文地址:https://kaotiyun.com/show/EQL7777K
0
大学英语六级
相关试题推荐
It’swidelyagreedthatgirlsgenerallystarttalkingearlierthanboys,andusemorecomplexvocabulary.Whenthey【C1】______sc
It’swidelyagreedthatgirlsgenerallystarttalkingearlierthanboys,andusemorecomplexvocabulary.Whenthey【C1】______sc
AreTeenagersReallyCarelessAboutOnlinePrivacy?[A]Theyshare,like,everything.Howtheyfeelaboutasong,theirmathshom
A、Byinformingpeoplethatit’sanincurabledisease.B、Byprovidingeffectivemedicinetostopitstransmission.C、Bydisciplin
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNational
Theincreaseinglobaltrademeansthatinternationalcompaniescannotaffordtomakecostlyadvertisingmistakesiftheywantt
LGDisplay,theworld’ssecond-biggestflat-paneldisplaymaker,isbettingbigonlarge-scaleOLEDtelevisionpanels,brushing
Nomaterwhat,the"content-should-be-free"crowdsays,copyrighttheftrobsartistsandbusinessesoftheirlivelihoods.Creati
Inthe1990s,DemiMoorewasamajormoviestarand,asthewifeofBruceWillis,onehalfofaHollywoodpowercouple.Shehad
随机试题
变压器温度的测量主要是通过对其油温的测量来实现的。如果发现油温较平时相同负载和相同条件下高出10℃时,应考虑变压器内发生了故障。 ()
a.thatmustbedoneb.anactiontakenagainstsomeoneinaccordancewiththelawc.aninsurerwhoiswell-knowninaparticul
患者,女性,24岁,已婚。因反复发作口腔溃疡3年、外阴溃烂3周余就诊。一年前曾患“结膜炎”,已治愈。无结核史,否认婚外冶游史。查体:上下唇黏膜、齿龈见数个米粒大小散在表浅性溃疡、周围红晕。背部见多个毛囊性炎性丘疹、丘疱疹及小结节。双侧小阴唇潮红、各见两枚绿
血沉减慢可见于
吊装方案的主要内容有()。
Shipping agents will( )the goods to be shipped.
企业采用类比法制订生产控制标准的依据有()。
某学生精力旺盛,争强好胜,做事勇敢果断,为人热情直率,其气质类型为多血质。()
亚洲国家躲过了近年来的全球大萧条,其中最主要的原因是它未被卷入2008年金融危机。然而近日一项调查显示,亚洲的债务水平正在以可怕的速度增长。从某些方面来说,这有部分合理理由,许多国家的超低息政策鼓励贷款,债务增长是财富增长的自然产物。但值得警惕的是,亚洲国
(think)______itover,hedecidedtogiveitup.
最新回复
(
0
)