Ioftenhearhim______.TodaywhenIpass(经过)theclassroom,Ihearhim______again

I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .A.sing; singingB.singing; singC.singing; singingD.sing; sing

A解析试题分析：句意：我常常听到他唱歌。今天当我经过教室的时候，我听到他又唱歌了。hear sb do sth 听见某人做某事，hear sb doing sth听见某人正在做某事，题中有when I pass(经过)the classroom当我经过教室时，这个时间状语，故选A考点： hear sb do sth /hear sb doing sth的区别点评：hear sb do sth /hear sb doing sth的区别在英语中这类动词的句型非常常见，常见的还有see sb do sth看见某人做某事 /see sb doing sth看见某人正在做某事，前者强调动作的全过程，后者强调正在进行。

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