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关键用句： A solar eclipse occurs when the moon passes between the Sun and the Earth sothat the Sun is fully or partially covered. 日蚀发生在在月球处于太阳和地球之间时,这导致太阳被完全或部分地遮住了 A solar eclipse occurs when the moon passes between the Sun and the Earth sothat the Sun is fully or partially covered. This can only happen during a newmoon, when the Sun and Moon are in conjunction as seen from the Earth. At leasttwo and up to five solar eclipses can occur each year on Earth, with betweenzero and two of them being total eclipses. Total solar eclipses are neverthelessrare at any location because during each eclipse totality exists only along anarrow corridor in the relatively tiny area of the Moon's umbra. A total solar eclipse is a spectacular natural phenomenon and many peopletravel to remote locations to observe one. The 1999 total eclipse in Europehelped to increase public awareness of the phenomenon, as illustrated by thenumber of journeys made specifically to witness the 2005 annular eclipse and the2006 total eclipse. The most recent solar eclipse occurred on January 26, 2009,and was an annular eclipse. In ancient times, and in some cultures today, solar eclipses have beenattributed to supernatural causes. Total solar eclipses can be frightening forpeople who are unaware of their astronomical explanation, as the Sun seems todisappear in the middle of the day and the sky darkens in a matter ofminutes. | 
