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
专升本
Everyone uses the expressions AM and PM. But do you exactly know what they mean and how they came into being? As you know, t
Everyone uses the expressions AM and PM. But do you exactly know what they mean and how they came into being? As you know, t
admin
2011-03-26
64
问题
Everyone uses the expressions AM and PM. But do you exactly know what they mean and how they came into being?
As you know, the turning of the earth makes the sun and the stars seem to move across the sky. Daylight, of course,【21】,when the sun rises in the east and when the sun is high【22】the sky, between these two positions, half of the daylight hours have been spent.
Therefore, by noticing【23】the sun stood in the sky, early man know they could tell the time of the day. At night the motion of the stars【24】the same purpose. The important thing in keeping time is to know the exact moment of【25】. For each of us, wherever we are, noon is when the sun is directly overhead. Think of an imaginary line【26】the sky,, stretching from the north point of your horizon just to the south point.
When the sun cross your meridian (子午线), it is noon for you. When the sun still【27】of this line, or the meridian, it is morning. After the sun has crossed this line, it is【28】.
The Latin word for "midday" is "deridian",【29】which comes our word meridian. So AM is an abbreviation(缩写词) for "ante meridean", or before midday, and PM for after midday. Each or the world’s time zones (时区)is about fifteen degrees wide in longitude (经度), which is about the distance the sun moves through the sky in an hour.【30】lives in the same time zone observes noon at the same moment. In this way, the time is different by one hour as you move through each time zone.
选项
A、in
B、shining
C、rising
D、falling
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/EavC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
阅读老舍《断魂枪》中的一段文字,然后回答下列小题。谁不晓得沙子龙是短瘦,利落,硬棒,两眼明得像霜夜的大星?可是,现在他身上放了肉,镖局改了客栈,他自己在后小院占着三阃北房,大枪立在墙角,院子里有几只楼鸽。只是在夜间,他把小院的门关好,熟习熟习他的“五虎断
Before1914femalesecretarieswererarebecausethey______.Thewriterbelievesthatbeforelong______.
Economists______(cast)thatannualincreasesinGDPwillremainaround3percent.
Thefirst-yearstudentswerelearningfromthearmyinMiyun,asuburbofBeijingnear______Ilived.
Thisyear’stotaloutputvalueofindustryandagriculturewillincrease______5percentoverlastyears.
Ididnotlosetemperwhenhetoldmethathewantedtorunawayfromhome;instead,Itriedto______withhim.
Heputdownthetelephonenumber(lestheshouldforgetit).
Shedidn’tregretpaying200dollarsforthebookcase.Asamatteroffact,shewouldgladlyhavepaid______forit.
Airpollution,togetherwithlittering,______manyproblemsinourlargeindustrialcitiestoday.
Iwillneverforgetthetime______wespenttogetherinthevillage.
随机试题
患者,女,71岁。患原发性高血压10年。长期服用排钾利尿剂控制血压,现因低血钾收入院。护士在患者右手进行静脉穿刺滴入含钾溶液。4小时后遵医嘱抽血复查血钾。不宜选择的穿刺部位是
下列产品属于买方成熟度和交易效率都低的是
金融期货
下列哪项与出血性白带无关
下列选项中,经济学意义上所考察的投资活动不包括()。
场地设计的防震措施有下列几种,其中不正确的是()。
《质量验收统一标准》规划了建筑工程施工质量验收的方法、内容和( )的质量验收指标。
阅读文言文。回答下列问题。孔子迁于蔡三岁,吴伐陈。楚救陈,军于城父。闻孔子在陈蔡之间.楚使人聘孔子。孔子将往拜礼,陈蔡大夫谋曰:“孔子贤者,所刺讥皆中诸侯之疾。今者久留陈蔡之间,诸大夫所设行皆非仲尼之意。今楚,大国也,来聘孔子。孔子用于楚,则陈蔡
朱某是一大学教授兼某律师事务所律师。一次,他作为张某抢劫案的辩护律师,在法庭上依刑法理论对抢劫罪的犯罪构成发表了自己的看法,并综合其他方面发表了辩护意见,被法院采纳。该教授的辩护意见属于()。
HowmanyhipposarekeptinQueenElizabethNationalParknow?
最新回复
(
0
)