1. The firms are not allowed to set up any trade ________ among them.

　　A. barrier B. blame C. benefit D. duty

　　2. That organization __________ persons of different political stands.

　　A. owns B. embraces C. composes D. consists

　　3. The economy in this city was _______ by the new investment from abroad.

　　A. cancelled B. boomed C. buried D. crowded

　　4. She has finally decided to be ______ in rejecting his proposal.

　　A.busy B.frank C.casual D.clam

　　5. Finally the jury found the accused _____ of robbing the old lady.

　　A.doubtful B.guilty C.diverse D.distinct

　　答案与解析:

　　1 A

　　barrier 壁障;blame 指责;benefit 受益;duty 责任。

　　2. B

　　own 尤指以法定权利拥有某物;embrace 表示“欣然接受”;compose 意为“创作(乐曲或诗歌)”，表示“由……构成”时，应用be composed of 这一表达;consist of 意思是“由……构成”。根据题意及各选项的用法，正确B。

　　3 B

　　cancel 撤消;boom 繁荣;bury 埋;crowd 使拥挤。

　　4.B

　　busy忙碌的,繁忙的;frank坦白的;直率的;真诚的;casual偶然的,碰巧的;clam蛤,蛤蜊,蚌。

　　5.B

　　doubtful怀疑的,疑惑的;guilty有罪的,犯...罪的;diverse不同的,互异的;distinct与其他不同的,有区别的。