<正> 综合练习 A1 完形填空(10分)Men first measured time (1) using a stick in the ground.The length of the (2) shadow would (3) what time of day itwas.(4),the Egyptians used a pillar,(5) as a gnomon,andthen developed a simple sundial,(6) consisted of a stone with apointer on it.The stone was placed in an east-west direction,and the shadow of the pointer showed the time.About 300 BC,a Babylonian (7) Berosus invented a semi-circular sundial,(8) he marked twelve hours.The Babyloni-am,like the Egyptians,divided daylight (9) twelve parts andnight into twelve.This meant that an hour would have differ-ent lengths (10) different times of the year.A daytime hourmight be longer or shorter than a nighttime one.These hoursare known as 'temporary hours'.(1)A.with B.byC.through D.in
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