"天狗食日"这是中国古代人们对于日食的最初的认识。由于对日食和月食认识的局限，保留下来了很多这样的传说和故事。现代人已经不会再对日食和月食产生恐惧，偶尔出现的日食和月食成为了天文爱好者们的观测目标。天文学家对于日食和月食的研究，对人类的生产和生活产生了重要的作用。人类根据日月食形成的规律制定了计时的历法。根据日食的科学研究观测潮水的涨落等。("Heaven Dog Eats the Sun" is the initial understanding of ancient Chinese on solar eclipses. Due to the limited understanding of solar eclipses and the lunar eclipses, lots of these legends and stories have been preserved. Modern people will no longer be afraid of solar eclipses and lunar eclipses. The occasional solar eclipses and lunar eclipses have become the observation target for the amateur astronomers. The astronomers' researches on solar eclipses and lunar eclipses have an important role in the production and life of human beings. Human beings develop the calendar for timing according to the law of the formation of solar eclipses and lunar eclipses and observe the fluctuation of tide and other phenomena according to the scientific researches on solar eclipses and lunar eclipses.)