274. She felt _____ of having asked such a silly question when the audience couldn't help laughing.

   A. guilty    B. crazy    C. miserable    D. ashamed

[答案]D. ashamed.

     [注释] be ashamed of因......感到羞耻，惭愧：1)He is ashamed of what he was done.2)She felt ashamed of having done so little.(=She felt ashamed that she had done so little.) 3)John was ashamed to ask for help.(他不好意思向人求助。) 4)Jim was ashamed to have troubled me with so many questions.

Be guilty of犯有......罪，过失：1)He was found guilty. 2)I am not guilty of this crime.

273. After a short holiday, he _____ himself once more to his studies.

   A. applied    B. converted    C. engaged    D. exerted

 [答案]A. applied.

[注释]apply oneself to"致力于"。Apply one's mind to(专心于)。Apply to sb. for aid(向某人求援)。Apply a theory to practice(把理论应用于实践)。

272. The family is a cooperative enterprise for which it is difficult to _____ rules, because each family needs to work out its own ways to deal with its own problems.

   A. set up    B. put down    C. keep up    D. lay down

 [答案]D. lay down.

[注释]lay down制定。参阅Ⅲ，97注释。

271. Although he hasn't any formal qualifications, Betas _____ to do well for himself.

   A. managed    B. succeeded    C. arranged    D. convinced

 [答案]a. managed.

[注释]manage to do sth.(=succeed in doing sth.)设法做成某事：1)He managed to escape to South America.(他设法逃到了南美。) 2)We managed to get what we wanted, anyhow.(我们反正设法得到了需要的东西。) 3)Do you suppose you can manage to get me a passport?(你能设法给我弄到一份护照吗？)

本题译文：虽然他没有正式的资力，但他收入很多。Do well for oneself吃香，收入多，改善自己的社会地位。

270. John always tries to _____ people who are useful to him professionally.

   A. develop    B. provoke    C. correspond    D. cultivate

 [答案]D. cultivate.

[注释]cultivate sb.结识（有地位的人），培养与......的友谊：He always tries to cultivate rich and famous people.(他总是极力结识有钱的知名人士。)

本题译文：约翰总是力图结识在职业方面对他有用的人。

269. What a terrible experience! _____ , you are safe, that's the main thing.

   A. Somehow    B. Anyhow    C. Somewhat    D. Anywhere

 [答案]B. Anyhow.

[注释]anyhow(at= any rate; in any case)无论如何，不管怎样。

268. He has recently _____ chess to provide himself with some relaxation.

   A. taken on    B. taken up    C. held on    D. held up

[答案]B. taken up.

[注释]take up开始从事。take on参阅Ⅲ，162,171注释。hold on, hold up参阅Ⅲ，162,171注释。

267. It has been decided that this company has the _____ right to print Mr. Smith's novels.

   A. eventual    B. versatile    C. extensive    D. exclusive

[答案]D. exclusive.

[注释]exclusive(=reserved to the person(s) concerned)独有的；This bathroom is for the president's exclusive use.

eventual最终的；versatile通用的，万用的；extensive广泛的。

266. Jim's close _____ to his brother made people mistake them for one another.

   A. confusion    B. similarity    C. resemblance    D. imitation

[答案]C. resemblance.

[注释]resemblance n. 像（to）。 resemble(vt.)像; She resembles her mother.(=She takes after her mother.)

imitation模仿；仿效；confusion混乱，混淆；similarity相似性。

265. I think we should let Maria go camping with her boyfriend. _____, she's a big girl now.

   A. Above all    B. After all    C. First of all    D. For all

[答案]B. After all.

[注释]after all毕竟。

"for all + 名词"意为"尽管": For all his wealth, he was unhappy.(尽管他富有，但他并不幸福。)