题目内容
14．They _______ the train until it disappeared in the distance．（ ）| A． | saw | B． | watched | C． | realized | D． | noticed |
分析 他们看着火车直到它消失在远方．
解答 答案：B 考查动词词义辨析．Saw看，看见；watched 观看； noticed注意；realized意识到，根据句意他们看着火车直到它消失在远方．在until的肯定句中，主句必须使用延续性动词，因为这个动作一直在继续．而see 是瞬间动词，所以选B
点评 解答此类问题首先要理解每个单词的基本含义，并注意交叉含义间的区别，了解其特殊用法及习惯搭配等特点，然后结合语境选择正确答案．
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