1. Predicting the coming of floods men made a calendar, and better calendars were made by observing the sun and the moon and the planets, and this led to the growth of astronomy.
    在预测洪水的过程中，人们编制了历法。通过对太阳、月亮和行星的观察，历法越编越好，天文学便应运而生。

2. Fires , floods and earthquakes are disasters.
    火灾、水灾和地震都是灾难。

3. Fighting the annual floods men got themselves organized, and society came into being.
    在一年一度与洪水的搏斗中，人们组织起来，于是产生了社会。