282.[答案]A. dressed.[详解]be dressed in 穿这......衣服。Wear意为“穿着”是及物动词，语法结构上与本题不符。Put on穿上，强调的动作。

281.[答案]D. eliminate.[详解]eliminate(=get rid of, do away with)消除，排除，淘汰：1) Can the government eliminate poverty?(政府能否消除贫困?) 2)eliminate slang words form an essay(从文章中去掉俚语词)。

280.[答案]C. encouragement.[详解]encouragement鼓励，支持：shouts of encouragement(鼓励的欢呼声)。

　本题译文：从欢呼声和鼓励声中，我猜想他正在赢得这场竞赛。

279.[答案]B. inspired.[详解]inspired鼓舞，激励，产生：1)His speech inspired us to try again. 2)He inspired confidence in me.(他使我产生信心。) 3)The good news inspired us with hope.(这个好消息使我们产生希望。)

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

277.[答案]B. consent.[详解]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.[详解]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.[详解]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.[详解] 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.[详解]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)。