首页
登录
职称英语
What made this eclipse so unique? [originaltext] On December 25, 2000, many p
What made this eclipse so unique? [originaltext] On December 25, 2000, many p
游客
2023-12-14
38
管理
问题
What made this eclipse so unique?
On December 25, 2000, many people 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 projecting 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 scen
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/3272494.html
相关试题推荐
[originaltext]SaudiforcesclashedwithsuspectedmilitantsinthecapitalR
[originaltext]AresearcherattheUniversityofRochesterinNewYorkhasfo
[originaltext]Indonesianprosecutorshaveaskedjudgestosentencethesonoff
[originaltext]M:Thoughshouldchocolateloverseverywhereberejoicingtoday,
[originaltext]M:Thoughshouldchocolateloverseverywhereberejoicingtoday,
[originaltext]M:Thoughshouldchocolateloverseverywhereberejoicingtoday,
[originaltext]M:Thoughshouldchocolateloverseverywhereberejoicingtoday,
[originaltext]PalestinianrocketsfiredfromtheGazaStripcrashedintoth
[originaltext]PalestinianrocketsfiredfromtheGazaStripcrashedintoth
[originaltext]Texas’attorneygeneralonThursdaypledgedhisfullcooperation
随机试题
Insomecountries,societalandfamilialtreatmentoftheelderlyusuallyre
Nowadays,somethinghasgoneterriblywrongwithouronce-proudAmericanwa
[originaltext] WelcometoEalingCollegeofHigherEducation(ECHE).TodayIw
以下关于职位评价说法错误的是( )A.职位评价是指系统地确定职位之间的相对价值
中国推动建立新型国际关系的基础是()。A.和平与发展 B.和平、稳定、公正、
《国家中长期教育改革和发展规划纲要(2010--2020年)》的指导思想:高举中
管理咨询方提供施工期管理服务时,其介入的情况是()。A、业主在项目决策阶段委托管
如果市场利率下降,浮动利率投资的利息收入会减少,固定利率债务的利息负担会相对加重
(2020年真题)甲单位成立于20世纪80年代,其名称和简称在我国具有一定影响。
十二指肠球部前壁穿孔的临床表现不包括下列选项中的A.上腹部阵发性绞痛 B.发病
最新回复
(
0
)