问2004年10月多道语法题

以下是引用kimbol在2006-3-22 9:27:00的发言：

问2004年10月多道语法题

15. A challenging new area in inorganic chemistry is ---- the role of transition metals in the biochemical catalysts called enzymes.
     (A) that of understanding
     (B) to have understanding
     (C) the understanding
     (D) understanding that

answer A, C 为何不对?

C is correct.  "that" = a challenging new area   

if C, the sentence would be:   A challenging new area is the understanding ..= area is the understanding, which is obviously wrong.

20. Initially introduced in 1852, the gyroscope consists a spinning device, usually in the form of a wheel, that exhibits strong angular momentum

answer B, 我认为D the 应该去掉。而且B 要怎么改那？consist of

D

C

B

A

31. Statistics indicate that approximate every 22 years--within a range of 3 to 4 years--a major drought occurs in the United States.

answer A， 我认为B 应该为approximately。 agree with you, "statistics" can be either contable or uncontable.

D

C

A

B

39. By 1810 the 23 towns of Hampshire County, Massachusetts, had reached a remarkable uniform of economic development as well as population density.

answer D, 我选C， uniform 应该为uniformity。 agree with you, D is nothing wrong

请大家赐教