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
Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more pr
Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more pr
admin
2010-07-06
26
问题
Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more prone 【21】______ making mistakes. It is actually caused by 【22】______ of your "body clock"—a small cluster of brain cells that controls the timing of biological 【23】______ . The body clock is designed for a 【24】______ rhythm of daylight and darkness, so that it is thrown out of balance when it 【25】______ daylight and darkness at the "wrong" times in a new time zone. The 【26】______ of jetlag often persist for days 【27】______ the internal body clock slowly adjusts to the new time zone. Now a new anti-jetlag system is 【28】______ that is based on proven 【29】______ pioneering scientific re- search. Dr. Martin Moore-Ere has 【30】______ a practical strategy to adjust the body clock much sooner to the new time zone 【31】______ controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates 【32】______ of the discomfort of jetlag. A successful time zone shift depends on knowing the exact times to either 【33】______ or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule 【34】______ light exposure depends a great deal on 【35】______ travel plans. Data on a specific flight itinerary (旅行路线) and the individual’s sleep 【36】______ are used to produce a Trip Guide with 【37】______ on exactly when to be exposed to bright light. When the Trip Guide calls 【38】______ bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad, 【39】______ you are on an aero plane, you can use a special light device to provide the necessary light 【40】______ for a range of activities such as reading, watching TV or working.
【28】
选项
A、adaptable
B、approachable
C、available
D、agreeable
答案
C
解析
上文谈到时差反应对人们的干扰。看到本句开头“Now a new anti-jetlag system…”时,我们可以推测,是不是这样一种系统已经产生了呢?空格后定语从句补充说明它建立在广泛的开创性的科研项目的基础上,进一步证实了我们的猜测。C项available 意思是“able to be used,had or reached”,意为“可得到的”,常常作表语,符合句意,所以为正确答案。A项为“可改造的,能适应的”,主要指人而不是指物;B项为“可接近的,可与之打交道的”,主要指人或地方;D为“宜人的,令人愉快的”,与句意不合,也不是正确答案。
转载请注明原文地址:https://jikaoti.com/ti/PPisFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Fordecades,postersdepictingrabbitswithinflamed,reddenedeyessymbolizedcampaignsagainstthetestingofcosmeticsonani
ThespeakerthinksthattobeateacherismoredifficultthantobethepresidentoftheNEA.Teachersfailtoreceivedueres
TherecentsocialandeconomicchangesintheU.S.havegreatimpactonalltheAmericanhousingsystem.Livingundergroundca
Whydidthewomanopenthedoorwhensomeoneknockedatit?
ThecontroversialAnglo-Frenchsupersonictransportplane,theConcorde,hadattractedmuchattentionbecauseitisunusuallylo
Duringtheearlyperiodoftheearth’shistory,theweatheronearthapparentlyfluctuatedbetweenbrightsunandshowers.Inr
Duringtheearlyperiodoftheearth’shistory,theweatheronearthapparentlyfluctuatedbetweenbrightsunandshowers.Inr
Howtojumpqueuefury?Ifyoufindyourselfwaitinginalongqueueatanairportorbusterminusthisholiday,willyoutryto
Theimportanceandfocusoftheinterviewintheworkoftheprintandbroadcastjournalistisreflectedinseveralbooksthath
随机试题
转速负反馈调速系统中必有放大器。()
患者男,55岁,因“双眼复视2周”就诊,无晨轻暮重。发现糖尿病、高血压5年。无外伤史。眼部检查:Vou1.0,眼前节裂隙灯检查及直接检眼镜检查均正常;无突眼,睑裂正常。角膜映光法:33cm(裸眼):右眼注视,左眼内斜15°,左眼注视,右眼内斜30°;眼球运
患者,男,56岁。咳嗽,痰中带血1个月余并伴低热。肺结核分枝杆菌检测时,常用的痰涂片方法为
转录模板链转录编码链
金樱子的功效是()肉豆蔻的功效是()
A.促销宣传资料应有科学依据,经得起检验没有误导或不实语言,也不会导致药品的不正确使用B.在销售药品时,不夸大药效,不虚高定价,不做虚假广告,实事求是地介绍药品的副作用与不良反应C.药品生产过程中的“三废”对环境极易造成污染,环境保护已经成为药品生
阅读下面这首乐府诗,完成试题。雨雪曲江总①雨雪隔榆溪⑦,从军度陇西③。绕阵看狐迹,依山见马蹄。天寒旗彩坏,地暗鼓声低。漫漫愁
榜样的力量是无穷的,精神的力量是伟大的。50年来,在雷锋精神的感召下,涌现了一大批雷锋式的先进入物。“当代雷锋”郭明义就是其中的杰出代表。今天,无论是遍布全国的上百支郭明义爱心分队,还是郭明义微博上的680万“粉丝”,或是郭明义先进事迹报告会上泪流满面的听
There’snocomparisonbetweenthem,one______clearlymuchbetterthantheother.
TheMetropolitanPolicewillnolongerdescribeblackpeopleasblack,aspartofanewattempttocounterchargesofracismin
最新回复
(
0
)