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、Adjusting his biological clock. B、Knowing the direction of a jet. C、Realizing the time difference during flight. D、Getting use
A、Adjusting his biological clock. B、Knowing the direction of a jet. C、Realizing the time difference during flight. D、Getting use
admin
2019-07-18
24
问题
Jet lag, caused by traveling between time zones, is becoming a common problem for frequent travelers: for 49 percent it is only a nuisance and for 45 percent it is a real problem.[16]It is caused by disruption to the internal biological clock, and may lead to digestive problems, tiredness, and sleep disruption. Generally speaking, our biological clock is slightly disturbed if we just move into the next time zone, but jet lag becomes a problem once we have passed through three or four time zones.[17]The body takes about one day to get over each hour of time difference. But the seriousness of jet lag problems also depends on our direction of travel. If we travel west we will be in advance of ourselves as far as our internal clock is concerned, and problems may arise. A west-to-east journey, on the other hand, makes us late compared to the local time. It often demands even greater effort in adjustment since we are not quick enough to catch up with the new time schedule. Therefore, a trip from New York to Los Angeles often causes fewer problems than a Los Angeles-New York trip.
16. What’s the problem a person suffers from when traveling between time zones?
17. How many hours does one need to get over his jet lag problem if he travels across three time zones?
18. What’s the main purpose of the passage?
选项
A、Adjusting his biological clock.
B、Knowing the direction of a jet.
C、Realizing the time difference during flight.
D、Getting used to the weather of a new place.
答案
A
解析
录音开头就提到Jet lag,第2句就说明它的起因是“人体内部的生物钟被打乱”,故答案为A。
转载请注明原文地址:https://kaotiyun.com/show/xSZ7777K
0
大学英语四级
相关试题推荐
Ifapotentialcustomerenjoysyouradvert,theyaremorelikelytobuyyourproduct.It’sasimple【C1】______,butitisextrem
A、Hisbrother.B、Hismother.C、Hisfather.D、Hissister.A
InasmallschoolontheSouthSideofChicago,40childrenbetweentheagesoffiveandsixsitquietlylearninginaclassroom
InasmallschoolontheSouthSideofChicago,40childrenbetweentheagesoffiveandsixsitquietlylearninginaclassroom
A、Aninternationaldriver’slicense.B、AnArizonadriver’slicense.C、Aregularlicense.D、Alimitedlicense.A对话开头,男士直接说到他有一张国际
A、Itsbatteryisnotpowerfulenough.B、Itsbatteryisofenormoussize.C、Itcoststoomuchmoney.D、Itbreaksdowneasily.A短文
A、Supportive.B、Opposed.C、Pessimistic.D、Neutral.A对话开头,男士说,美国众议院反对干细胞研究,时至今日,竟然还有人这么做真是令人难以置信。说明男士自己是支持干细胞研究的,故选A。
A、Heisalwaysill.B、Heistooactive.C、Hespeakstoolittle.D、Hedoesabadthing.A男士说他的病人BenTinker先是感冒,后来是喉咙痛。但不是什么严重问题,但
A、Itdoesn’tneedthesamestandards.B、Individualstatesareresponsibleforeducation.C、Expertsdon’tagreewitheachother.
Couldthereasonfortheworld’seconomicmisfortunesallcomedowntofingerlength?Althoughcertainlyanoversimplificationo
随机试题
高等教育自学考试的命题方式包括()
公证员有下列哪一或哪些行为的,可以给予严重警告的惩戒?()
()一般可以反映价格水平的高低。
[2012专业案例真题上午卷]某一般性质的220kV变电站,电压等级为220/110/10kV,两台相同的主变压器,容量为240/240/120MVA,短路阻抗Uk12=14%,Uk13=25%,Uk23=8%,两台主变压器同时运行时的负载率为65%。22
某工程项目最终确定某建设公司中标,招标人于2008年3月1日向中标人发出了中标通知书,中标人于2008年3月5日收到,则招标人和中标人至少应在()前签订书面建设工程施工合同。
丙类厂房每个防火分区或一个防火分区的每个楼层,仅设一个安全出口时,其每层建筑面积不超过250m2,且同一时间的生产人数不超过()人。
责任成本计算、变动成本计算和制造成本计算,是三种不同的成本计算方法。它们的主要区别包括()。
我国著名乐曲《万马奔腾》是()的乐曲,由()主奏,()作曲。
根据下面材料回答问题。2004年,某市房地产市场供需高位均衡,并呈现供略大于需的合理态势,商品房竣工面积1956.29万平方米,比去年同期增长45.3%;销售面积1876.31万平方米,比去年同期增长21.0%。供需绝对差额79.98万平方米。1
ThefirstsentenceinParagraph1isusedbyAmericanschoolchildrenbecauseAccordingtothepassage,whenwasthenewplanet
最新回复
(
0
)