托福听力的背景知识很多，出国留学网托福栏目小编整理了相关的资料，希望可以帮助考生度过考试的难关，下面是小编搜集的托福听力背景知识：古埃及历法的相关资讯，欢迎参考!
托福听力背景知识：古埃及历法
Introduction：
Ancient Egyptian Calendar
古埃及的历法包括太阴历和准太阴历等,大体上将每年分为 3 个季节:泛滥季、长出五谷季、收割季。同时以 365 天为 1 年,1 年 12 个月,每月 30 天,年终另外再加 5 天作为节日。比现行的阳历只少 1/4 天。古罗马的儒略历就是在此基础上修订的。
Background information：
The ancient Egyptian calendar was inventedover 5000 years ago. It was originally based on the lunar cycle of 12 months,which the Egyptians grouped into three seasons of four months each to coincidewith the rise and fall of the waters of the Nile. However, although theflooding of the Nile began each year around the end of June, the floodsoccurred within a range of 80 days and were not accurate enough to base acalendar on. So the ancient Egyptians, having noticed that the Nile’s risingcoincided with the heliacal rising of the star Sirius, the brightest star inthe sky, based the year on the cycle of its reappearance.
The beginning of the year, also called"the opening of the year", was determined by the appearance of thestar Sirius, in the constellation ...