6. Which of the following is NOT true of the spot of light?
(A) It is caused by sunlight passing through a hole.
(B) It travels across the roof of the shelter.
(C) Its movement is affected by the position of the Sun.
(D) It movement could have been used to estimate the time of day.
7. From which of the following can be the time of year be determined?
(A) The movement of the spot of light from west to east
(B) The speed with which the spot of light moves
(C) The movement of the spot of light from north to south
(D) The size of the sport of light at midday
8. The word "roughly" in line 18 is closest in meaning to
(A) finally
(B) harshly
(C) uneasily
(D) approximately
9. The passage mentions that the Hole in the Rock was used as all of the following EXCEPT
(A) a calendar
(B) a home
(C) a clock
(D) an observatory
10. Which of the following can be inferred from the fourth paragraph?
(A) The boulders are located below the rock shelter.
(B) The person seated on the rock cannot see the shelter.
(C) After it passes the boulders, the spot of light disappears.
(D) The spot of light is largest when it first appears.
参考答案:CABCA BCDBA