[答案] D. considered

　　[注释] considered 考虑; admit 承认; absorb 吸收。

　　[注意]acknowledge 1) (=agree or admit the truth of; confess) 承认, 供认; A. He acknowledged his mistake. (他承认了他的错误。) B.接动名词 He acknowledged having been beaten. (他承认被打败了。) 2) (express thanks for) 致谢; A. Mary acknowledged the gift with a pleasant letter. (玛丽致函感谢馈赠的礼物。) B. His long service with the company was acknowledged with a present. (向他赠送礼品以感谢他长期来对公司的服务。)

　　[答案] C. consent

　　[注释] consent 同意, 赞成, 答应。conviction 深信, 确信。compromise 妥协, 折中。command 命令, 指令; 掌握, 运用能力。

　　[答案] A. powerful

　　[注释] powerful (=having or producing great power) 强有力的。在这里四个形容词中, 只有powerful (有效力的) 可与表示药物的名词搭配。influential 有影响的, 有势力的, monstrous 异常大的, vigorous 精力旺盛的, 强健有力的。

　　[答案] B. abandoned

　　[注释] abandoned (=give up completely) 放弃, 抛弃; 1) The scientist abandoned his research for lack of fund. 2) The sailors abandoned the burning ship.

　　[注意]abandon 暗指某人对其所抛弃的人或物将会发生什么事情不感兴趣, 如把撞坏的汽车抛弃在路旁。vanish (=suddenly disappear;go out of existence) vi.消失, 绝迹; 1) The airplane vanished into the clouds.2) Many kinds of animals have vanished form the earth. (许多种类的动物以在地球上绝迹。) scatter (=send, go in different direction) 驱使, 使分散; The police scattered the crowed. (警察驱散人群。) (=throw or put in various directions) 撒, 到处放; He scattered his clothes all over the room. reject (=refuse to accept) 拒绝接受;She rejected my suggestion.

　　[答案] C. comprehensive.

　　[注释] comprehensive 完全的无所不包的; comprehensible 能懂的, 可以理解的; understandable 可以理解的, 主要用来指人的行为。understanding 用来指人时, 表示"善于理解别人或别人问题的 (人) 。"注意下面的搭配：a comprehensive map (街区详图) ; a comprehensible remark (听得懂的话) ,an understandable mistake (可以理解的错误) ; an understanding friend (一位能理解人的朋友) 。