题目内容
1.Most evenings,before watching late-night comedy or reading emails on his phone,Matt Nicoletti puts on a pair of orange-colored glasses that he bought for S8on the Internet."My girlfriend thinks I look ridiculous in them,"he said.But Mr.Nicoletti,a 30-year-old consultant in Denver,insists that the glasses,which can block certain wavelengths of light emitted by electronic screens,make it easier to sleep.
Studies have shown that such light,especially from the blue part of the spectrum (光谱),inhibits the body's production of melatonin(褪黑激素),which helps people fall asleep.Options arc growing for blocking blue light,though experts caution that few have been adequately tested for effectiveness and the best solution remains avoiding brightly lit electronics at night.
A Swiss study of 13teenage boys,published in August in The Journal of Adolescent Health.showed that when the boys wore orange-colored glasses,also known as'blue blockers'and shown to prevent melatonin,in the evening for a week,they felt"significantly more sleepy"than when they wore clear glasses.The boys looked at their screens,as teenagers tend to do,for at least a few hours on average before going to bed,and were monitored in the lab.
Older adults may be less affected by blue light,experts say,but blue light remains a problem for most people,and an earlier study of 20adults aged 18to 68found that those who wore orange-colored glasses for three hours before bed improved their sleep quality considerably relative to a control group that wore yellow-colored lenses,which blocked only ultraviolet(紫外线)light.
LEDs used in devices such as smart phones,tablets and televisions tend to emit more blue light than incandescent products(白炽产品).LEDs are also increasingly popular as room lights,but"warm white"bulbs,with less blue,tend to be a better choice than"cool white"for nighttime use.The lighting company Philips also makes a reduced-blue LED bulb,meant to be used妙fore bedtime."In theory,anything that will decrease that blue light exposure at night will be helpful."said Christopher Colwell,a scientist at the UCLA,"I know some gainers who swear by those orange-colored glasses."
But orange glasses are not a panacea(万能药).Dr.Skene said."It isn't just getting rid of the blue and everything's fine,"she said.The intensity of light,in addition to color,can affect sleep,she said,and not all brands of orange-colored glasses have undergone enough independent testing for their ability to aid sleep.
During the daytime,experts say,exposure to blue light is good.Best of all is sunlight,which contains many different wavelengths of light."That's what our brain knows,"said Kenneth P.Wright Jr.,director of the sleep and chronobiology(生物钟学)lab at the University of Colorado,Boulder.
A 2013study he led,published in the journal Current Biology,showed just how different things can be without nighttime lights.After participants had camped in the mountains for a week,their bodies began to prepare for sleep about two hours earlier than normal.
Short of cutting out all evening electronics,experts say,it's advisable to use a small screen rather than a large one; dim the screen and keep it as far away from the eyes as possible; and reduce the amount of time spent reading the device.
"If you can look at the iPhone for 10minutes rather than three hours,that makes a lot of difference,"Dr.Skene said.
63.What does the underlined word"inhibit"in Paragraph 3probably mean?A
A.prevent B.promote C.project D.process
64.Which of the following statements is true?D
A.The older a person is,the less he or she will be affected by blue light.
B.The exposure to the blue light does nothing but harm to the human body.
C.Traditional lighting companies are facing a dead end due to backward technology.
D.All brands of orange-colored glasses are not reliable for their ability to aid sleep.
65.What are the contributing factors of a better night's sleep?D
①Limited screen time before bed.
②A pair of color glasses.
③A small-sized screen of electronics.
④A place without nighttime lights.
⑤Devices with LED backlighting.
A.①②③B.③④⑤C.②③⑤D.①③④
66.The purpose of this article is toC.
A.advertise a brand of orange-colored glasses which can block blue light
B.question the effectiveness of orange-colored glasses on the market
C.introduce a kind of orange glasses that may help people sleep better
D.teach readers about the most effective ways to have a better sleep.
分析 本文介绍了可以帮助人们睡眠更好的橙色眼镜.
解答 63-66.ADDC
63题答案:A考查细节推理,根据后面的which helps people fall asleep(有助于人们入睡)可知这样的光阻止褪黑激素的产生,故本题答案为A选项.
64题答案:D考查细节推理,根据第七段最后一句and not all brands of orange-colored glasses have undergone enough independent testing for their ability to aid sleep.(并不是所有橙色眼镜的品牌都经历了足够的独立测试证明它们有助于提高睡眠的能力)可知本题答案为D选项.
65题答案:D考查细节推理,根据第四段最后一句The boys looked at their screens,as teenagers tend to do,for at least a few hours on average before going to bed,and were monitored in the lab.(这些男孩在实验室接受了检测,他们和普通青少年一样,每晚睡觉前平均看上几个小时的电子屏幕),根据倒数第二段中的it's advisable to use a small screen rather than a large one; dim the screen and keep it as far away from the eyes as possible; and reduce the amount of time spent reading the device.(专家建议,如果不能避免,最好使用小屏幕而不是大屏幕,降低屏幕的亮度,减少从电子屏幕上阅读信息的时间),根据倒数第三段中的showed just how different things can be without nighttime lights.After participants had camped in the mountains for a week,their bodies began to prepare for sleep about two hours earlier than normal.(没有夜间灯光可以造成多大的改变:在山中露营一周后,参与者的身体比平时提早了两个小时开始准备进入睡眠状态).可推测D选项符合题意.
66题答案:C考查主旨大意,全文都是在围绕橙色眼镜有助于睡眠的益处展开,因此可知本文是在介绍一种能够帮助人睡眠更好的橙色眼镜;故本题答案为C选项.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.
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Large wall posters for kids.Your kids will love these cool posters by artist Carla Daly.Your kids will enjoy decorating their bedroom walls with these posters and their friends will think they are the coolest!
Name:ABC Wall Art Size:44×72cm (17.5″×28″) Time:9:00 am every day Prices:£6.8/piece Colorful ABC art for your kids'bedroom and playroom.A fun,educational art piece that all kids will enjoy.Kids and babies will love learning their animals and the ABC at the same time! |
Name:Kids World Map Size:45×75cm (17.5″×29.5″) Time:2:00 pm on Wednesday Prices:£7.2/piece A colorful,large print by artist Carla Daly.Your kids will love this world map showing the lands,oceans and the fun animals that live in them.An educational map that will keep your kids happy for hours! |
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Name:City Slickers(城市佬) Size:44×55cm(17.5″×23.5″) Time:2:00 pm every day except Friday Prices:£6.5/piece Cute kids wall art of two cool giraffes taking a drive through the city,unusual,fun style for kids'walls!Your kids will love this fun giraffe wall art.Boys and girls will have fun decorating their bedroom walls with this colorful bedroom wall art. |
A.ABC Wall Art
B.Kids World Map
C.Skateboard Park
D.City Slickers
56.David plans to buy two posters.He should at least takeD with him.
A.15.3.
B.14.
C.12.
D.13.3.
57.Which of the following is TRUE according to the passage?D
A.Kids can find two cool giraffes on Skateboard Park.
B.Kids can just learn some English letters on ABC Wall Art.
C.Kids can enjoy fun zebra children's wall art on City Slickers.
D.Kids can get some geography knowledge on Kids World Map.
A.investments | B.enough | C.unconditional | D.degree | E.loyalty | |
F.back | G.relevant | H.doubly | I.commitment | J.promoted | K.demonstrate |
One good reason for giving employees (42)Ctuition repayment is that it shows the company's commitment to its employees.In today's economy,where job security is a thing of the past and employees feel more and more expendable,it is important for a company to(43)Kto its employees that it cares.The best way to do this is with concrete(44)Ain them.In turn,this commitment to the betterment of company employees will create greater employee (45)E.A company that puts out funds to pay for the education of its employees will get its money (46)Fby having employees stay with the company longer.It will reduce employee turnover,because even employees who don't take advantage of the tuition repayment program will be more loyal to their company just knowing that their company cares (47)Bto pay for their education.Most importantly,the company that has an unrestricted tuition repayment program will have higher quality employees.Although these companies do indeed run the risk of losing money on employees who go on to another job in a different company as soon as they get their (48)D,more often than not,the employee will stay with the company.
And even if employees do leave after graduation,it generally takes several years to complete any degree program.Thus,even if the employee leaves upon graduating,throughout those years,the employer will have a more sophisticated,more intelligent,and therefore more valuable and productive employee.And,if the employee stays,that education will(49)Hbenefit the company:Not only is the employee more educated,but now that employee can be (50)Jso the company doesn't have to fill a high-level vacancy from the outside.Open positions can be filled by people who already know the company well.Though unconditional tuition repayment requires a significant investment on the employer's part,it is perhaps one of the wisest investments a company can make.