2. 時(shí)間關(guān)系上不同: 現(xiàn)在分詞表示正在進(jìn)行的動(dòng)作, 而過(guò)去分詞表示已經(jīng)完成的動(dòng)作。We are all living in a changing world(=a world which/that is changing). 我們都生活在正在發(fā)生變化的世界里。 The changed world (=The world which had changed) surprised him. 已經(jīng)變化了的世界令他吃驚。Step 4. More as the object complement1. 用于feel, find, hear, notice, see, smell, observe, watch, think等表示感覺(jué)或心理狀態(tài)的動(dòng)詞后作賓語(yǔ)補(bǔ)足語(yǔ)。Many passers-by saw a tree beside the street knocked down by a car yesterday. 昨天很多路人看見(jiàn)路邊的一棵樹(shù)被一輛小汽車撞倒了。When he woke up in the hospital, he found himself surrounded by doctors and nurses. 當(dāng)他在醫(yī)院醒來(lái)時(shí), 他發(fā)現(xiàn)自己被醫(yī)生和護(hù)士包圍著?？偨Y(jié)起來(lái)，其結(jié)構(gòu)為：feel/find/hear/notice/see/smell/observe/watch/think +賓語(yǔ)+done2. 用于get, have, make, keep, leave等使役動(dòng)詞后作賓語(yǔ)補(bǔ)足語(yǔ)。He spoke English slowly, and tried to make himself understood while traveling abroad. 在國(guó)外旅行期間, 他說(shuō)英語(yǔ)的語(yǔ)速很慢, 盡力讓人們理解自己的意思。When he was working, he liked keeping the door of his room closed. 當(dāng)他工作時(shí), 他喜歡關(guān)著房間的門。