hear sb do和hear sb doing的区别

Question

Do you often hear John____in his room?-yes.Listen!Now wo can hear him____in his room.
A sing;to sing B singing;singing C sing;singing D to sing;singing

Answer 1

Do you often hear John____in his room?-yes.Listen!Now wo can hear him____in his room.
A sing;to sing B singing;singing C sing;singing D to sing;singing
选C sing;singing .hear sb.do sth.表示听见某人做某事。 hear sb.doing sth.表示听到某人正在做某事。第一个空中，因为提问者用的是一般现在时，所以动词也用一般现在时，动词原形即可。第二个空中，因为回答者说了Now，表示唱歌的动作正在进行，所以用现在进行时，表示听到他正在唱。

Answer 2

选C hear sb do sth.是表示动作的固定搭配。hear sb doing 是表示听到某人正在做什么的搭配本回答被网友采纳

Answer 3

选 C sing;singing
often 为一般现在时标志，应用动词原形，而Now是现在进行时用动词ing形