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　　中考网整理了关于2021年中考英语知识点：感官动词用法之一，希望对同学们有所帮助，仅供参考。

　　感官动词用法之一：

　　see, hear, listen to, watch, notice等词，后接宾语，再接动词原形或ing形式。

　　前者表全过程，后者表正在进行。句中有频率词时，以上的词也常跟动词原形。

　　I heard someone knocking at the door when I fell asleep. (我入睡时有人正敲门)

　　I heard someone knock at the door three times. (听的是全过程)

　　I often watch my classmates play volleyball after school. (此处有频率词often)

　　若以上词用于被动语态，后面原有动词原形改为带to不定式：

　　We saw him go into the restaurant. → He was seen to go into the restaurant.

　　I hear the boy cry every day. → The boy is heard to cry every day.

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