（一）

1.  It is not clear whether the increase in reports is stemmed from greater human activity or    is simply the result of more surveys.

 A. flows                   B. comes                C. derives               D. originates

2.  This is the sort of case in which judges must exercise the arbitrary power described a moment ago.

  A. avail                    B. use                    C. have                  D. display

3.  Recent studies have posed the question as to whether there is a link between film violence and real violence.

  A. supposed             B. poised                C. aroused              D. raised

4.  Floods have undermined the foundation of the ancient bridge.

 A. weakened             B. reached              C. spoiled               D. covered

5.  A frequently cited example of the endangered species is the panda.

  A. worried                B. neglected            C. reduced              D. mentioned

参考答案：

1. D

  stem from 起源于。选项A flow 流动；选项C derive得自；选项D originate 起源于。  故答案为D。

2. B

  这句话的意思是，“对待这类案件，法官必须使用所谓的专制权力”选项A avail  有利，  有用；选项D display 显示。故答案为B。

3. D

  pose提出(问题)选项B poise使...平衡；选项C arouse激发，激起某人的兴趣；选项D raise   提出, 引起。故答案为D。

4. C

  undermine 从根基处损害。只有选项C spoil破坏与之相符，故答案为C。

5. D

  cite引用,引证；选项B neglect疏忽,忽视,不顾。只有选项D与此词相符，故答案为D。