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261. His test results are not very _____. He does well one week and badly the next.

A. invariable　 B. consequent C. continuous D. consistent

[答案]D. consistent.

[注釋]consistent 1)始終如一，前后一致：He is not consistent in his statements.(他的話并不前后一致。) 2)與......一致：The story is not consistent with the facts. What you say is not consistent with what you do.

260. Scientists think they have _____ in their attempt to find the causes of some major dieases.

　 A. broken through　　 B. worked out

　 C. fallen out 　　　　D. got round

[答案]A. broken through.

[注釋]break through(=be successful after overcoming a difficulty)突破；取得重大成果：Scientists hope to break through soon in their fight against heart disease.(科學(xué)家希望在與心臟病斗爭(zhēng)中很快取得重大成果。)

本題譯文：科學(xué)家認(rèn)為他們?cè)谔剿髂承┲匾�疾病的病因中已取得重大突破�?/p>

259. If you ever have the _____ to go abroad to work, you should take it.

A. possibility　　 B. offer　　 C. luck　 D. chance

[答案]D. chance.

[注釋]chance(偶然的)機(jī)會(huì)。Have與the(或 a) possibility不能搭配；常用There is a possibility for sb. to do sth.表示客觀存在的“可能性”。

258. I'd like to take _____ of this opportunity to thank you all for your cooperation.

A. profit　 B. benefit　 C. advantage　 D. interests

[答案]C. advantage.

[注釋]take advantage of(=make use of sth. for one's own benefit)利用：take advantage of my ignorance(利用我的無(wú)知)。

257. I could tell he was surprised from the _____ on his face.

A. appearance　　 B. view　　 C. sight　　 D. expression

[答案]D. expression.

[注釋]expression此處意指“表情”。Appearance表示人的“儀表，外表”。

256. We had a marvelous holiday: only the last two days were slightly _____ by the weather.

　 A. damaged　　 B. hurt　　 C. ruined　　 D. spoiled

[答案]D. spoiled.

[注釋]spoiled使......掃興: A shower of rain spoiled our day's outing.

255. The book seems to have been _____ from various books and articles.

　 A. pieced together　　 B. taken off

　 C. broken away 　　　　D. pulled out

[答案]A. pieced together.

[注釋]piece together拼合，拼湊；take off起飛；break away from脫離；pull out拔出；駛出；(車(chē))減速。

254. As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.

A. exposure　 B. distribution　 C. expansion　 D. emission

[答案]D. emission.

[注釋]emission散發(fā)物，發(fā)射。exposure(to)暴露于：They believe that their health problems are the result of years of exposure to fine cotton dust.(他們認(rèn)為，他們的健康問(wèn)題是多年來(lái)暴露于棉花粉塵所致。)expansion膨脹，擴(kuò)大；Heat causes the expansion of gas.本題譯文：正如汽車(chē)的生產(chǎn)和使用越來(lái)越多一樣，汽車(chē)的排氣管的散發(fā)物內(nèi)所含的有毒氣體量也在增加。

253. He left in such a hurry that I _____ had time to thank him.

A. almost　　 B. even　　 C. nearly　　 D. scarcely

[答案]D. scarcely.

[注釋]scarcely(=hardly, not quite, almost not)幾乎沒(méi)有。Scarcely是否定副詞，類(lèi)似的有：hardly, barely, rarely, seldom, little等。研究生入學(xué)考試中經(jīng)常測(cè)試這類(lèi)否定副詞的用法。

252. There are usually at least two _____ of looking at every question.

A. ways　　 B. directions　　 C. views　　 D. opinions

[答案]A. ways.

[注釋]two ways of looking at every questions意指“觀察每個(gè)問(wèn)題的兩個(gè)方面”。