He is often heard _____ in the next room.

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He is often heard _____ in the next room.
A.singing B.sang C.to singing D.to sing
为什么答案是A而不时D呢?
hear sb do sth变成被动语态后,do sth前面不是要加上to

hear+to do ,强调的是动作的结果,也就是sing 的结果
hear+doing,强调的是动作的状态,也就是sing这个状态,本句意思是：人们经常听到他在隔壁唱歌,强调的是他唱歌这个状态,而没有说他唱歌的结果,所以选A不是D
这是高中常做的题,

The girl is often heard _______ in the next room. He is often heard -----in the next room.A sing B to sing C s The girl is often heard ___ in next room mary is often heard ( )playing piano in the next room in the Last year,he often heard Tom (sing) in next room he was often heard ()in the next room.A.to sing B.sing Millie si often heard sing in the next room改错非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sin I often hear him _____ ( sing ) in the next room. that means she is often heard ( ) in the room The girl is often listened to_songs in the next room. we often heard her sing in the next room 为什么动词不是ing形式的?