91. Probability is the mathematical study of the _____ of an event's occurrence.

　　A. desire

　　B. likelihood

　　C. result

　　D. effect

　　[答案] B. likelihood

　　[注釋] 句意：概率是對事件發(fā)生的可能性的數(shù)學研究。

　　92. Driving a car without insurance can have _____ consequences.

　　A. uncertain

　　B. disastrous

　　C. potential

　　D. unworthy

　　[答案] B. Disastrous.

　　[注釋] disastrous 災難性的。

　　93. The police refused to _____ the clues they were working on.

　　A. exhibit

　　B. disclose

　　C. expose

　　D. discern

　　[答案] B. disclose.

　　[注釋]disclose (=uncover; allow to be seen; make known) 透露, 使顯露： 1) The lawyer disclosed the details of the case. 2) He disclosed that he had made arrangements to buy a new car. exhibit 展覽, 展出, 顯示, expose 暴露,discern 認出, 發(fā)現(xiàn), 辨別,識別。本題譯文：警方拒絕透露他們正在調(diào)查的線索。

　　94. What you have done is _____ the doctor's orders.

　　A. attached to

　　B. resistant to

　　C. responsible to

　　D. contrary to

　　[答案] D. contrary to.

　　[注釋] (be) contrary to與.......相反, 違反 (作表語) :What you wish to do is contrary to the regulations. contrary to也可以作狀語：a. If you act contrary to the doctor's advice, you won't get well again. b. Contrary to what I thought, he has proved to be successful. 2) 作定語：The boy was swimming in a direction contrary to the current. (這男孩朝著逆流方向游去。)

　　95. The shop-assistant was straight with his customers. If an article was of _____ quality, he'd tell them so.

　　A. minor

　　B. humble

　　C. inferior

　　D. awkward

　　[答案] C. inferior

　　本題譯文：這位商店售貨員對顧客很坦率。如果貨物質(zhì)量不好, 他就把情況告訴顧客。