152.[答案]A. extend.[详解]本题中extend意为“扩大”。lengthen拉长,延长。magnify放大。 Spread vi. 传播;vt.展开;He spread butter on the toast.(他在烤面包上涂上奶油。)

151.[答案]C. expert.[详解]expert期望，盼望，表示认为有很大的客观可能性，例如：I expert the work to be finished by Friday.(我期望这项工作能在星期五前做完。)wait for ... to do sth.等待、等待......做......，强调“等”这一动词的本身，如：The audience are waiting eagerly for the performance to begin.(观众正等着演出开始。)本题如改为这样：I waited for him to arrive in time for dinner, but he didn't come.(我等他来赶上晚餐，但他没有来。)则句子使是对的。由此可见，expect是表示“期待”，而wait for 是表示“等待”，词义完全不同。注意hope后不能接sb. to do sth.。imagine being on the moon. 3)I'm sorry, but I can't imagine anyone doing research like that.(很遗憾，我不能想象人家那样做实验。)

　本题译文：我们不能期望一个人在这样短的时间内改变一辈子养成的习惯。

150.[答案]C. descending.[详解] descend(=come or go down)走下来;传下来：1)He descended from the top of the mountain. 2)Are men descended from apes?(人是不是猿的后代?)depress 压抑，使沮丧。Depart出发，起程。

149.[答案]D. denied.[详解] deny 1)否认：A. He didn't deny the facts. B. They couldn't deny that it was a serious blow to them. C. He denied having ever there.(他否认曾到过那里。) 2)(=say 'no' to a request; refuse to give sth. asked for or needed)不给予;Lots of people were denied the right to vote.(许多人被剥夺了选举权。)He denies his wife nothing.(他对他的妻子有求必应。)

148.[答案]B. common.[详解]common(=usual and ordinary; happening of found often and in many places)普通的;常见的;常常发生的;到处可见的：a common experience(普通的经历);a common tree(常见的树木)。This bird is common throughout Europe.(这种鸟在欧洲很常见。)They can treat most of the common diseases.(他们能治疗大多数常见病。)usual(=done, found, used or existing most of the time) 经常的，通常的，惯例的，习以为常的;强调时间习惯方面，例如：This is the usual state of the house.(这房子里平常就是这种样子。)ordinary正常的，普通的，正常的;an ordinary day(平凡的一天)，ordinary people(普通人), a piece of ordinary dance music(一首普通的舞曲)。General普通的。它与common比较，语气稍强，含有很少例外的意外。可见本题中用common是最佳的选择。

147.[答案]A. committing.

　[详解] commit...to 托付，交付：1)He was committed to the care of his aunt.(他被托付给他的姨妈照管。) 2)I have already committed the rules to memory.(我早已记住这些规则了。)commit sth. to writing(把......写下来)。

146.[答案]B. account.

　[详解] take sth. into account(=consider)考虑到：We must take local conditions into accoutn.

145.[答案]B. touch up.[详解] touch up(=improve or perfect by small additional strokes or alterations)润色，修饰：1)The last part of the article needs to be touched up.(这篇文章的最后一部分需要润色。) 2)He touched up the picture by strengthening and shadows.(他把画修饰了一下，使光明部分和阴暗部分的对比度更鲜明。)put up留宿;cut out 删掉;write off报销，勾消。

　本题译文：你的文章很好;只要用些例证和引语修饰一下。

144.[答案]D. keep up with.[详解] keep up with跟上。参阅。88注释。Add up to参阅.2注释;cut short 详见.38;look up to(=admire, respect)赞美，尊敬：We look up to the old workers as our teacher.(我们把这位老工人尊为我们的老师。)本题中rates意为“价格，费用”。

　本题译文：为了跟上生产成本的上升，预定费已提高。

143. [答案] D. irresistible[详解]irresistible不可抵抗的，诱人的，1)I had a irresistible desire to run away,2)I can't refuse this offer; it is irresistible.

　Irregular 不规律的, 不合规则的：1)the trains from here are irregular.(这里发的火车是不规律的。) 2)These procedures are highly irregular.(这些程序是非常不合规矩的。)

　incredible 不可避免的，不可信的：1)Old superstitions are incredible to educated people.(旧的迷信对受过教育的人来说是不可信的。)2)His story of rescuing six drowning men is incredible.(他说他救了6个溺水者，这是难以置信的。)

　inevitable 不可避免的：1)Traffic delays are inevitable at a holiday weekend.(假日周末交通耽搁是难免的。)2)Pain is Inevitable when one breaks a bone.(骨折是疼痛是难避免的。)

　本题译文：虽然露西正在减轻体重，但她觉得奶油蛋糕是诱人的。