278.[答案]A. consequently.[注释]consequently (as a result)因而，所以。

277.[答案]B. consent.[注释]consent n. 同意，赞成;consent (to) vi.同意，如：consent to a plan(同意一项计划)。allowance津贴。permit执照，许可证。

276.[答案]B. in brief.[注释]in brief(=in a few words)简短地(作状语),例如：He told me in brief what had happened.(他简短地向我讲了已发生地事情。)此处in brief等于briefly。此处，in brief(=in a word, in short)简言之(作插入语)1)It is a long letter, but in brief, he says "No".(这是一封长信，但简言之，他说“不”。) 2)John is smart, polite, and well-behaved. In brief, he is admirable.此句中in brief意为in a word 或in short. in short作插入语，其意思是in a word(总之)。In detail详细地。In all总计，总共：There are 20 in all.

275.[答案]B. preference.[注释]preference偏爱，更加喜欢：My preference is for beef rather than for lamb.(我更喜欢牛肉面不是羊肉。)

274.[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.[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.[答案]D. lay down.[注释]lay down制定。参阅Ⅲ，97注释。

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