182. The magician picked several persons from the audience and asked them to help him with the performance.

　 A. by accident　 　B. on occasion

　 C. at random　　　 D. on an average

[答案]C. at random.

[注释]at random(=without aim or purpose)随便地，胡乱地：His clothes were scattered about the room at random.

By accident意外地；on occasion偶尔；on an average平均计算。

181. He has left his book here on _____, so that you can read it.

　 A. purpose　　 B. intention　　 C. aim　　 D. meaning

[答案]A. purpose.

[注释]on purpose是介词习语，意为“故意地”。如用intention,则应说by intention故意地。

180. I remember her face but I cannot _____ where I met her.

　 A. recall　　 B. remind　　 C. remember　　 D. remark

[答案]A. recall.

[注释]recall(=bring back to the mind)想起，回忆起：But I really cann't recall your name at his moment.

Remind sb. of ...使......想起：1)The photo reminds me of my late father.(这张照片使我想起已故的父亲。) 2)The sight of the clock reminded me that I was late.

Remind sb. to sth.提醒......做......；Please remind me to write the letter.

179. The climbers _____ their ambition by reaching the summit of the mountain.

　 A. obtained　　 B. sustained　　 C. maintained　　 D. realized

[答案]D. realised.

[注释]realise sth. by doing sth. else通过做......来实现.......。

178. It has always been the _____ of our firm to encourage workers to take part in social activities.

　 A. plan　　 B. campaign　　 C. procedure　　 D. policy

[答案]D. policy.

[注释]policy(尤指政党、政府、大企业、商行等的)政策，方针。Campaign(政治或竞选的)运动；(军事的)行动，procedure做事的手续、程序，rule规则，plan计划，均不合题意。

本题译文：本公司的一贯方针是鼓励工人参加社会活动。

177. The most important _____ of his speech was that we should all work whole-heartedly for the people.

　 A. element　　 B. spot　　 C. sense　　 D. point

[答案]D. point.

[注释]point(=chief idea of sth. said, done, or planned)要点；论点，主旨：I don't see your point.(我不明白你的意思。)He said nothing to the point.(他说的不切题。)

176. When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.

　 A. opportunity　　 B. possibility　　 C. occasion　　 D. chance

　[答案]C. occasion

[注释] occasion 作可数名词时，意为“时机”，作不可数名词时，意为“必要”，本题中occasion意为“必要”。从句语法结构上看，本句中用opportunity(难得的)机会，chance(偶然的)机会均可，但按逻辑意思，应用occasion.

175. The managing director promised that he would _____ me as soon as he had any further information.

　 A. communicate　　 B. notice　　 C. notify　　 D. note

[答案]C. notify.

[注释]notify通知。Notice n.通知；v.注意到；note n.笔记；v.记下，摘下。

174. These plastic flowers look so _____ that many people think they are real.

　 A. beautiful　　 B. natural　　 C. artificial　　 D. similar

[答案]B. natural.

[注释]natural自然的，与后半句“许多人认为它们是真的”相呼应。

173. When the big bills for mother's hospital care came, father was glad he had money in the bank to _____.

　 A. fall short of　　 B. fall through

　 C. fall back on　　 D. fall in with

[答案]C. fall back on.

[注释]fall back on求助于。参阅Ⅲ.48注释。

Fall short of没达到，低于：1)He fell short of what we had expected.(他没有达到我们的期望。) 2)The measures proposed fall far short of what is required.(所提出的这些措施远没达到需要的 目标。)

Fall in with与......一致，符合；同意，赞成，支持。

Fall through落空。参阅Ⅲ.49注释。

本题译文：母亲在医院就医的各种帐单送来时，父亲高兴的是他可用银行里的存款来支付。