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Oh, Mary, why are you killing your time this way ?Can’t you find something____ doing at all?
A.usefulB.valuableC.worthD.good
C

试题分析:考查固定搭配。固定搭配sth be worth doing某事值得被做;本句中worth doing修饰名词something。句意:Mary,为什么你用这种方法来消磨时间呢?你难道就不能找到值得做的事情吗?故C正确。
点评:固定搭配是学习语言的重要环节。要掌握好英语,记忆相当数量的词组是必不可少的。英语中的每一个词组,不仅表达一定的概念,具有一定的词汇意义,而且在语音、拼法、语法等方面都有自己的特点。在学生学习英语的过程中,单词、词组记忆是基础。解答这类题目,关键是理解题干意思以及各选项词组的意思,可以像数学中的代入法一样,依次把各个选项意思放入句子中进行比较,不难选出正确答案。
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