题目内容

8．Who__________？There's too much noise．I can not read my books any more．（　　）
A．does singB．is singC．will singD．is singing

分析 谁在唱歌？噪音太多了．我没法读书．

解答 答案：D．
根据设空处后面的句子There's too much noise 结合语境推测问句的句意是"谁在唱歌？噪音太多了．我没法读书．"，由此判断设空处的动作在说话时刻正在进行着，所以用现在进行时．现在进行时的构成是：主语+am/is/are+动词的现在分词；主语是who，be动词用is，故答案为D．

点评 本题考查了动词的时态．做题时，一定要特别关注有关的时间短语，这是判断句子时态的标志．在没有时间状语的情况下可以联系上下文根据语境来做出正确判断．

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