单选题 32.  The team's efforts to score were ______ by the opposing goalkeeper.
【正确答案】 A
【答案解析】 考查词语搭配。frustrate可与efforts搭配,表示“使……(的努力)受挫”。prevented和discouraged都有“阻碍,阻止”的意思,意思上没错,但都不与efforts搭配。
   该队几次努力试图破门得分,都被对方守门员挫败了。