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3.While it may not be worthwhile for older patients,younger patients are more likely to regard anything that gives them a lifelong working knee joint as well worth the cost.

分析 虽然老年的病人也许认为不值得,年轻的病人更有可能认为任何给予他们终生有用的膝关节的东西完全值得这个代价.

解答 答案是worthwhile.本题考查语境中选用恰当的词或短语;worth adj.值得,后面必须接宾语;worthy adj.值得的;必须用在结构be worthy of (being done)/to be done中;worthwhile adj.值得做的;值得花时间/金钱/精力的;往往用 it做形式主语,构成It is worthwhile  for sb.to do sth./doing sth.做…是值得的;或sth.be worthwhile某事值得;由下文中的"well worth the cost完全值得这样的代价"推断老年病人认为不"值得花钱",根据搭配判断答案是worthwhile.

点评 首字母填空必须在对语境整体理解的基础上抓住指向答案的关键线索、固定句型或搭配等,并联系首字母,同时注意所选词的形式变化.

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