1." 他一直在追她,試圖抓住她." " He is running after her,trying to catch her."前半句是句子的主句,is+ running,是一個現(xiàn)在進(jìn)行時,表示正在進(jìn)行的動作.后半句是句子的伴隨狀語,表示和主句動詞同時發(fā)生的動作.2." ...He，running，after her, trying to catch her這樣不對嗎？我看到有的寫成這樣很高級，就想學(xué)一下，什么時候可以用逗號隔開來.這是一個病句，因為沒有謂語動詞。running 和trying 都叫做動詞的現(xiàn)在分詞形式，也叫做動名詞，不具備謂語動詞的功能。一個句子如果沒有謂語動詞，就不能算是一個完整的句子了。He，running，after her is trying to catch her還有個His running after her is trying to catch her：His running，after her is trying to catch her 。這些對嗎？首先你要清楚，“追趕某人”是run after somebody, run after 是不分開的。His running after her is trying to catch her. 語法上是正確的，譯為“他追趕她是試圖抓住她?！焙蜕厦鎡rying to catch her做伴隨狀語的用法和意思完全不一樣。在課本上有一個話是——Many English people ,traveling away form home,feel at loss if their favourite tasbags are not available.還有Lighter teas with jasmine,rose or other flowers,are special to China's Changjiang River regions.這兩句的謂語前都加了逗號，那這句話翻譯改成他在跑，試圖快點到學(xué)校的話 翻譯可也改成He，running， is trying to arrive at school early在語法上可以嗎？你需要區(qū)別的是，你提供的前兩個例句，兩個逗號中間的成分是“同位語”， 而he is running , trying to arrive at school early. 用的是伴隨狀語。最好用符合英語語言習(xí)慣的句式來表達(dá)，不要鉆牛角尖。