19. An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.

　 A. however　　 B. therefore　　 C. yet　　 D. although

　A. however.　

　　 however 然而。

本题译文：早期的打字机打起字来又快又整齐, 然而打字员不能看着机器键盘打字。

18. The reason why he adapted to the new situations quickly is that he has a _____ attitude.

　 A. changeable　　 B. alternate　　 C. movable　　 D. flexible

　D. flexible.

　　 flexible 灵活的, 可变通的; We need a foreign policy that is more flexible.

17. Motorists _____ of speeding may be banned from driving for a year.

　 A. convicted　　 B. arrested　　 C. charged　　 D. judged

　A. convicted.

be convicted to 被判有...... (罪) ：He was convicted of murder. (他被法院判有谋杀罪。)

16. He was not _____ to the club because he wasn't a member.

　 A. allowed　　 B. admitted　　 C. permitted　　 D. approved

　B. admitted.

　admit sb. to (=allow sb. or sth. to enter; let in) 允许某人某物进入; 让......进入：1) Children are not admitted. (儿童免进。) Only one hundred boys are admitted to the school the school every year. (这所学校每年只收100名男生。) admit (=acknowledge; confess) 承认, 供认：1) We have to admit that he is a highly competent man. (我们不得不承认他是一位能力很强的人。) 2) The thief admitted his crime. 3) She admitted having read the letter, 4) I admit breaking the window. 注意admit后可接动名词的一般式或完成式。5) We must admit the task to be difficult。注意admit也可以接复合结构。allow和permit后均可接sb. to do sth., 故不合本题题意。approve sth. 批准; approve of doing sth. (=think well of) 赞成, 赞许：1) I am afraid they won't approve of your going there. (恐怕他们不会赞成你去那里的。) 2) I don't approve of your way of looking at things. (我不赞同你看待事情的方法。)

15. He is a very honest official and never _____ any gifts from the people who sought his help.

　 A. accepted　　 B. received　　 C. carried　　 D. excepted

　A. accepted

　receive 收到, 接到, 指“收, 接”这一动作; 而accept 是经过考虑“接受”下来, 表示当事人的态度, 如：I received the present, but I did not accept it. (我收到了这件礼物, 但我没有接受。)

14. The number of tickets _____ will be determined by the size of the stadium.

　 A. adaptable　　 B. acceptable　　 C. advisable　　 D. available

　D. available.

　　 available. (=capable of being used; that may be obtained) 可用的, 有效的, 可得到的。例如：1) There are no doctors available in the remote areas. (在边远地区没有大夫。) 2) There tickets are available for on month. (这些票有效期一个月。)

acceptable 可以接受的：None of the suggestions was acceptable. advisable 明智的, 可取的, 适当的：I think it advisable that he be assigned to the job. (我认为指派他干这项工作是可取的。) adaptable 能适应的：He is an adaptable man and will soon learn the new work.

13. According to the psychoanalyst Sigmund Freud, wisdom comes from the _____ of maturity.

　 A. fulfillment　　　 B. achievement　　 C. establishment　　 D. accomplishment

　B. achievement

achievement (=something successfully finished or gained especially through skill and hard work) 取得, 达到, 成就。例如：achievement age智力成熟年龄。fulfillment (=the act of fulfilling or condition of being fulfilled) 履行, 实行。如：He was willing to face any hardship in fulfillment of his duties. (他愿意迎向困难去履行他得职责。) establishment 建立,建设。Accomplishment (顺利) 完成：It was a great accomplishment to finish the house cleaning in two days. (两天内打扫完这栋屋子是件很了不起的事。)

12. My camera can be _____ to take pictures in cloudy or sunny conditions.

　 A. treated　　 B. adopted　　 C. adjusted　　 D. reminded

　C. adjusted.

　 adjust (=arrange, put in order or agreement; make suitable or convenient for use) 强调, 调节, 使适应; The body adjusts itself to change of temperature. (身体能自行调节以适应温度的变化。) My eyes have not been adjusted to dark yet. (我的眼睛还没有适应黑暗。) 本句中adjust是不及物动词。I must adjust my watch. It's slow. (我必须调一下我的表。它走得慢了。)

11. Mr. Smith gradually _____ a knowledge of the subject.

　 A. attained　　 B. achieved　　 C. required　　 D. acquired

　 D. acquired.

　 acquired (=gain for oneself by skill or ability, by one's own efforts or behavior) (由技术、能力、努力或行为) 获得; 得到：He has acquired a good command of English language. (他已精通英语。) achieve, vt. 取得 (胜利、成功等) , 实现 (目标、目的等) 。 attain, vt. 达到 (目的等) , 取得 (成就等) ：1) I hope you will attain your object. (我希望你会达到你的目的。) 2) He attained success through hard work.

10. The policeman stopped him when he was driving home and _____ him of speeding.

　 A. charged　　 B. accused　　 C. blamed　　 D. deprived

　B. accused.

accuse sb. of... 控告某人犯有......, warn sb. of警告、告戒某人有......deprive sb. of sth.剥夺某人某事。charge sb. with murder (指控某人犯有杀人罪) 。