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
58
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!
In the first paragraph, the word "sundial" refers to______.
选项
A、the shadow of the sun
B、the circle on the ground
C、a tool to carry stones
D、a timekeeper
答案
D
解析
释义题。当太阳从天空划过,树影绕着树随之移动。有人划了一个圆,把一根棍子竖在中央。随着太阳在天空移动,棍子的影子和圆圈相交。通过观察影子落到圆上的哪个标记处,就可以知道是一天中的什么时候了。这些圆圈就叫做“sundial”。从这些信息中我们可以得知,“sundial”应该是记录时间的工具.
转载请注明原文地址:https://kaotiyun.com/show/WfNd777K
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】___
Judgingfromrecentsurveys,mostexpertsinsleepbehavioragreethatthereisvirtuallyanepidemicofsleepinessinthenatio
Onesummernight,onmywayhomefromworkIdecidedtoseeamovie.IknewthetheatrewouldbeairconditionedandIcouldn’tf
Onesummernight,onmywayhomefromworkIdecidedtoseeamovie.IknewthetheatrewouldbeairconditionedandIcouldn’tf
Withtheworld’spopulationestimatedtogrowfromsixtoninebillionby2050,researchers,businessesandgovernmentsarealr
Ican’tbelievethekindofrubbishthatsomepeoplecallart.Yesterday,mygirlfrienddraggedmetoamodernart【C6】______tos
Ican’tbelievethekindofrubbishthatsomepeoplecallart.Yesterday,mygirlfrienddraggedmetoamodernart【C6】______to
Ican’tbelievethekindofrubbishthatsomepeoplecallart.Yesterday,mygirlfrienddraggedmetoamodernart【C6】______to
随机试题
下游产品
一位著名化学家声称,他将测验一瓶臭气的传播速度。他打开瓶盖15秒后,前排学生即举手,称自己闻到臭气,而后排的人则陆续举手,纷纷称自己也闻到,其实瓶中什么也没有。这段话重在揭示:
合同在工程管理中的作用有()。
客运站编码的正确组配从左到右是()。
下列属于发包人的义务有()。
totheaudiencecommentonsunnyweatherbeappropriateA.youmaywantto【T13】______theirdisorganizedbossesB.Heseeswo
系统软件开发的原型化方法是一种有效的开发方法,下述基本环节中哪一个是原型形成以后才应实施的内容?
AtleastsincetheIndustrialRevolution,genderroleshavebeeninastateoftransition.Asaresult,culturalscriptsaboutm
Therearetwotypesofpeopleintheworld.Althoughtheyhaveequaldegreesofhealthandwealthandtheothercomfortsoflife
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresthe【B1】______ofpeopletocommunicateintheworkplac
最新回复
(
0
)