高三英语阅读：日全食用英语怎么说.doc

高考资源网（）您身边的高考专家欢迎广大教师踊跃来稿稿酬丰厚。用心爱心专心高考资源网（）您身边的高考专家欢迎广大教师踊跃来稿稿酬丰厚。阅读资料：日全食用英语怎么说？totalsolareclipsetotaleclipseoftheSun所谓"食"就是指一个天体被另一个天体或其黑影全部或部分掩遮的天文景象。日食主要有日全食、日偏食及日环食三种。日食发生的原理是地球上的局部地区被月影所遮盖而造成的。日食必发生在朔日即农历的初一（朔）。这是因为只有在那一天月亮才会出现在太阳与地球之间的连线上这样才有可能使月球挡住太阳而形成日食。同样地月食一定出现在望日即农历十五。大家可能会问为什么不是每个月的初一都会有日食还有为什么不是每个月的十五都会有月食呢？这是因为除了上面的条件外影响日食和月食出现的还有其他一些因素。我们把地球围绕太阳公转的轨道称为黄道把月球围绕地球公转的轨道称为白道。黄道平面与白道平面不是相同的它们之间平均有5°09′的夹角并且随时发生变化。只有当月球运行到黄道和白道的升交点和降交点附近时才会发生日食。Theso-called"food"isacelestialbodythatwasanothercelestialbodyoritsHeiyingYanzheallorpartoftheastronomicalscene.RiQuansimainsolareclipsethepartialeclipseandthreeontheEnvironmentandFood.TheprincipleisthesolareclipseoccurredonEarthsomeareaswerecoveredbytheshadowcaused.ShuorisolareclipsewilloccurinthatfirstdayoftheLunarNewYear(NewMoon).ThisisbecauseonlyinthatdaythemoonwillappearintheSunandtheconnectionbetweentheEarthsowillitbepossibletoblockthesunandthemoonformedthesolareclipse.SimilarlytheeclipsewillappearinWangrithattheLunarNewYear15.Youmightaskwhyisnotthefirstdayofeachmonthwillbeasolareclipsewhynotthe15thofeachmonthwillbeapenumbraleclipse?Thisisbecauseinadditiontotheaboveconditionstheimpactofthesolareclipseandtheeclipsethereareotherfactors.WetheEartharoundthesuntothetrackknownastheeclipticthemoonaroundtheEarthtothetrackknownastheWhiteRoad.Eclipticplaneandwhiteplanenotthesameamongthemanaverageof5°09'angleandalwayschanging.OnlywhenthemoontorunandyelloworwhiteRoadintersectionneartheintersectionanddownonlywhenasolareclipse.