6.readily change its orientation, or phase. Cats know this instinctively, but scientists could not be sure how it happened until they increased the speed of their perceptions a thousand fold.

　　The word "readily" is closest in meaning to which of following?

　　(A) only

　　(B) easily

　　(C) slowly

　　(D) certainly

　　7. The changing profile of a city in the United States is apparent in the shifting definitions used by the United States Bureau of the Census. In 1870 the census officially distinguished the nation's "urban" from its "rural" population for the first time.

　　The word "distinguished" is closest in meaning to which of following?

　　(A) differentiated

　　(B) removed

　　(C) honored

　　(D) protected

　　8. Each SMSA would contain at least (a) one central city with 50,000 inhabitant or more or (b) two cities having shared boundaries and constituting, for general economic and social purposes, a single community with a combined population of at least 50,000, the smaller of which must have a population of at least 15,000.

　　The word "constituting" is closest in meaning to which of following?

　　(A) located near

　　(B) determined by

　　(C) calling for

　　(D) making up

　　9. The Anasazi lived in houses constructed of adobe and wood. Anasazi houses were originally built in pits and were entered from the roof.

　　The word "pits" is closest in meaning to which of following?

　　(A) stages

　　(B) scars

　　(C) seeds

　　(D) holes

　　10. Each kiva had a fire pit and hole that was believed to lead to the underworld. The largest pueblos had five stories and more than 800 rooms.

　　The word "stories" is closest in meaning to which of following?

　　(A) articles

　　(B) tales

　　(C) levels

　　(D) rumors

　　参考答案：

　　6 D B

　　7 A

　　8 D

　　9 D

　　10 C