这句话中的talk为什么不用过去时？ There he heard an astronaut, Bob,talk about his journey.

显示全部楼层 · 2012-1-21 13:37:59

hear sb. do sth.有一些动词后用作宾语补足语的不定式通常不带to。这种动词有两类：一类是感官动词，如see, hear, watch, feel, notice等。如：I heard him sing.另一类是某些使役动词，如let, make, have等。如：Let him go.They made the children work 12 hours a day....

千问 · 2012-1-21 13:37:59

hear sb do sth,英语中像hear ,look smell...等感官动词后接不带to的动词不等式。这里是他听到一个宇航员Bob讲他的旅程。...

千问 · 2012-1-21 13:37:59

hear sb do sth 听到某人做某事这里面hear后的动词用原形...

千问 · 2012-1-21 13:37:59

前头已经有了一个了...