文档介绍：感官动词的用法
,hear, listen to, watch, notice 等词，后接宾语，再接省略to的动词不定
式或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。
注释：省略to的动词不定式--to do是动词不定式，省略了 to,剩下do,其形式 和动词原形是一样的，但说法不同。
see sb do sth 看到某人做了 某事
see sb doing sth 看至U某人在做某事
hear sb do sth 听到某人做了某事
hear sb doing sth 听到某人在做某事
以此类推…
I heard someone knocking at the door when I fell asleep.（ 我入睡时有人
正敲门，强调当时正在敲门）
I heard someone knock at the door three times.（ 听至U有人敲门的全过程 ）
I often watch my classmates play volleyball after school.（ 止匕处有频率
词 often）
（了解）若以上词用于被动语态，须将省略的 to还原:
see sb do sth----sb be seen to do sth
hear sb do sth----sb be seen to do sth
以此类推…
Wesaw him go into the restaurant. f Hewas seen to go into the restaurant.
I hear the boy cry every day.
fThe boy is heard to cry every day.
可当系动词，后接形容词
.感官动词 look, sound, smell, taste, feel
He looks angry.
His explanation sounds reasonable.
The cakes smell nice.
The dishes taste delicious.
The silk feels smooth.???
注意：如果加介词 like