题目内容
13.My granny does crossword puzzles each day ______ her mind sharp.( )A. | to keep | B. | kept | C. | having kept | D. | to be kept |
分析 为保持思维敏捷我奶奶每天都作填字游戏.
解答 答案A.
Keep one's mind sharp保持思维敏捷.通过分析句子成分可知:my granny做主语,does是谓语动词,crossword puzzles做宾语,each 大约做时间状语,但题干中缺少目的状语,在非谓语中,只有不定式才能做目的状语.不定式用作目的状语时,其句意特点很明显,通常在译成中文时可用"为了"来表示.根据句子所表达的意思可知答案选A.
点评 本题考查非谓语动词中的不定式用法.不定式做目的状语有三个特点:一、句意上的特点不定式用作目的状语时,其句意特点很明显,通常在译成中文时可用"为了"来表示.有时即使没有直接翻译出"为了",但其中包含了类似意思,如"目的是""目的是为了"等.二、结构上的特点不定式用作目的状语有两个可能的位置,一是在句首,二是在句末.一般说来,用于句首属于强调性用法,即强调动词的目的.有时为了特别强调目的状语,可以在不定式之前加上in order或so as,即构成in order to do sth和so as to do sth结构.三、语法上的特点从语法上看,不定式表示目的通常是指发生在谓语动作之后的动作,也就是说,若以谓语动作发生的时间为标准,用作目的状语的不定式是一个尚未发生的将来动作.
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