不定式、现在分词和过去分词作宾语补足语的区别 表示感觉的感官动词 feel, hear, notice, listen to, see, observe, smell, watch 等和表示 “ 致使,让 ” 的使役动词 have, leave 等词后 , 可跟不带 to 的不定式和分词作。 不定式表示事情的全过程,说明某事已发生;用现在分词表示动作的一部分,说明动作正在进行,还未结束;用过去分词表示被动和完成。 --Do you hear someone _____________(knock) at the door? --Yes, I did. I heard him _______________(knock) three times. I found him _______________(lie) on the ground. He found his wallet ____________(steal). He had his house ____________(paint) last summer. He went out the room and left the door ____________(lock).