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
It was probably around 3,000 years ago that people first began making things to help them measure the passage of time. Having no
It was probably around 3,000 years ago that people first began making things to help them measure the passage of time. Having no
admin
2008-08-04
82
问题
It was probably around 3,000 years ago that people first began making things to help them measure the passage of time. Having noticed that shadows move around trees as the sun moves across the sky, someone drew a circle and put a stick in the center. As the sun passed overhead, people could tell which part of the day it was by noticing which mark on the circle the shadow fell across. These circles were called "sundials". Later, they were made of stone and metal to last longer.
Of course, a sundial did not work at night or on cloudy days, so men kept inventing(发明)other ways to keep trade of time. After glass blowing was invented, the hourglass came into use.
An hourglass is a glass container for measuring time n which sand moves slowly from the top half to the bottom in exactly one hour. The hourglass is turned over every hour so the sand could flow again.
One of the first clocks with a face and an hour hand was built for a king of France and placed in the tower of his palace. The clock did not show minutes or seconds. Since there were no planes or trains to catch, people were not worried about knowing the exact time. Gradually, clocks began to be popular and unusual. One clock was in the shape of a cart with a horse and driver. One of the wheels was the face of the clock.
Today, scientists have invented clocks that tell the correct time to a split second. Many electric clocks are often made with built-in radios, which can sometimes be set to turn on automatically (自动地). Thus, instead of an alarm(闹铃) ringing in your ear, you can hear soft music playing when it is time to get up. Some clocks will even start the coffee maker!
Besides telling the time, a modern electric clock can______.
选项
A、answer phone calls
B、say your name
C、start a small machine
D、cook different food
答案
C
解析
主旨题。由文章第四段许多电子钟装有内置式收音机,有时收音机可以自动打开。所以起床时,就不会听到闹铃声而是轻音乐。有的甚至能开启电咖啡壶。这些功能可归结为启动一个小机械。
转载请注明原文地址:https://kaotiyun.com/show/HfNd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Manyayoungpersontellsmehewantstobeawriter.Ialwaysencouragesuchpeople,butIalsoexplainthatthere’sabigdiff
Aroundtheworldyoungpeoplearespendingunbelievablesumofmoneytolistentorockmusic.Forbesmagazineclaimsthat【C1】___
Aroundtheworldyoungpeoplearespendingunbelievablesumofmoneytolistentorockmusic.Forbesmagazineclaimsthat【C1】___
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmericansurveyof【C1】______100000people
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmericansurveyof【C1】______100000people
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmericansurveyof【C1】______100000people
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmericansurveyof【C1】______100000people
WhyisMissBrowninthatoffice?
ItwasfifteenpastnineasMariehurriedintotheofficebuildingwhereshewasgoingtowork.Herbushadinchedalongthrough
ItwasfifteenpastnineasMariehurriedintotheofficebuildingwhereshewasgoingtowork.Herbushadinchedalongthrough
随机试题
Testing:IsittheOnlyWaytoEvaluateStudents?Abouttenpercentof【C1】________(spend)onprimaryandsecondaryeducatio
属于水肿阳水辨证要点的有
下列各项中,有权确定中央预算的政府采购项目公开招标具体数额标准的是()。
每年9月,由银监会组织发起,各银行业务金融机构共同参与的“金融知识进万家”银行业金融知识宣传服务月活动,体现了对金融消费者()的尊重和保障。
小学教师赵某休息时在活动室抽烟,他的行为()。
7,10,16,22,()。
新冠肺炎疫情期间,有居民反映社区防控工作人员对进入社区的各类人员只是象征性地测量体温、登记,达不到防控效果,是在搞形式主义;而社区工作人员却表示,由于社区人手不足且工作量太大,大家每天都是连轴转,压力也很大。领导让你解决此事,你会怎么办?
在具有2n个结点的完全二叉树中,叶子结点个数为()。
带链栈空的条件是
A、Marygotuplaterthanusual.B、Thetrainwaslate.C、Marymissedthetrain.D、Herclockwasoutoforder.CM:Mary,whywere
最新回复
(
0
)