英语第四册模拟练习题

综合练习 A1 完形填空(10分)Men first measured time(?)using a stick in the ground.The lengthof the(?)shadow would(?)what time of day it was.(?),the Egyp-tians used a pillar,(?)as a gnomon,and then developed a simple sundial,(?)consisted of a stone with a pointer on it.The stone was placed in aneast-west direction,and the shadow of the pointer showed the time.About 300 BC,a Babylonian(?)Berosus invented a semi-circularsundial,(?)he marked twelve hours.The Babylonians,like the Egyp-