首页
登录
职称英语
[originaltext] On December 25, 2000,. many Pe0Ple across North America receiv
[originaltext] On December 25, 2000,. many Pe0Ple across North America receiv
游客
2025-01-08
28
管理
问题
On December 25, 2000,. many Pe0Ple across North America received a rare Christmas treat when the moon passed in front of the sun resulting in a partial solar eclipse.
Solar eclipses occur when the moon passes between the earth and the sun, and the moon’s shadow covers part of the earth, and a total solar eclipse takes place when the moon’s shadow blocks out the sun entirely~ What made this particular solar eclipse unique was that such an event has occured on December twenty - fifth only 30 times during the past 5000 years, the last time in 1954. But people must be exceptionally careful when attempting to view a solar eclipse. Without taking precautionary measures, one can permanently damage the retina of the eyes; however, there are several safe methods of witnessing this heavenly marvel.
First, you can view a solar eclipse by using eclipse safety glasses for filtering out the sun’s harmful rays. They should-be used when any part of the sun is visible. Sunglasses can block out some of the sun’s ultraviolet rays, but the results can be very deceptive. The eye’s natural reaction to this darken state when wearing sunglasses is to make the pupil larger, which allows in more light and can intensify the damage to your eyes. You can also watch an eclipse by pro- jecting the sun’s image on a piece of paper either by using a telescope, or easier yet, by creating a pinhole in a piece of paper and viewing the result on another piece of paper, thus called a pinhole projector.
Only during a total eclipse when the sun is completely and briefly covered can you watch the eclipse without eye protection. Even then, extreme caution should be taken. In case you didn’t catch this last spectacular eclipse on December twenty - fifth, 2000, there’s no need to fret. Your posterity can record the next eclipse on Christmas in the year 2307, but only if their visiting the west coast of Africa for the holidays.
选项
A、Its location for viewing in the world.
B、Its timing on the calendar.
C、Its movement across the sky.
D、Its beautiful scene.
答案
B
解析
对于这次日偏食之所以独特的原因,报道中说得很清楚:What made this particular solar eclipse unique was that such an event has occured on December twenty - fifth only 30 times during the past 5000 years,the last time in 1954。即这种发生在圣诞节的日食在过去的5000年中只有30次,可见它这种日期是非常稀罕的,故正确答案应为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3904335.html
相关试题推荐
ThethirdparagraphexaminesAmerica’sfuture-mindednessfromthe______perspe
ThethirdparagraphexaminesAmerica’sfuture-mindednessfromthe______perspe
China’sinternetusershadreached______bytheendofJune.[originaltext]
ScientistsinBrazilhaveusedfrogskinto______.[originaltext]Scientists
WhatisthepurposeofProfessorMcKay’sreport?[originaltext]Interviewer:Toda
ThetapesoftheApollo11missionwerefirststoredin______.[originaltext]
【1】[br]【10】[originaltext]Goodmorning,everyone.Today’slectureisabou
【1】[br]【9】[originaltext]Goodmorning,everyone.Today’slectureisabout
【1】[br]【8】[originaltext]Goodmorning,everyone.Today’slectureisabout
【1】[br]【7】[originaltext]Goodmorning,everyone.Today’slectureisabout
随机试题
InsomeCaliforniahousingestates,akeyaloneisinsufficienttogetsomeonei
推动制造业升级和新兴产业发展。支持制造业高质量发展。大幅增加制造业中长期贷款。发展工业互联网,推进智能制造,培育新兴产业集群。发展研发设计、现代物流
Amyisveryafraidofdogs,________?A、issheB、dosesheC、isn’tsheD、doesn’ts
[img]2012q1/ct_etoefm_etoeflistz_0848_20121[/img][br]Indicatewhethereachof
Besidesconcernsabouthowadsaffectindividuals,criticshaveraisedethi
实现经济社会可持续发展的关键是()A.速度、比例和效益的统一 B.经济发展与
根据胎龄,早产儿的定义是A.胎龄<42周的新生儿 B.胎龄>37周至<42周的
冠心病心绞痛与心肌梗死时胸痛的主要鉴别点是A.疼痛的持续时间及对含服硝酸甘油的反
下列关于普通股票的说法正确的是( )。 Ⅰ.普通股票的股息率不固定,随公司的
某企业2018年初账面共有房产原值4000万元,当年房产使用情况如下: (1)
最新回复
(
0
)