人教版高二英语选修6 unit 5 Grammar V-ing形式作状语 (共20张PPT)

Grammar V-ing形式作状语 Seen from the hill, the park looks very beautiful. Hearing the news, they immediately set off for Shanghai. -ed 形式表被动 -ing形式表主动 ①Hearing the news, they immediately set off for Shanghai. (=When they heard the news, they immediately set off for Shanghai.) ② Having finished his homework, he went fishing. (= After he had finished his homework, he went fishing.) 1）做时间状语 如果动词-ing形式表示的动作与谓语动词的动作几乎同时发生，则用 doing; 若先于谓语动词的动作发生，则用其完成式，即having done 。 when she turned around, she saw a police car driving up. When I looked out of the window, I saw some children playing football. After they closed the windows and doors, the students left the room. 练一练 = Turning around, = Looking out of the window… = Having closed the windows and doors … _____________by a snake，she was frightened at it. A. bite B. biting C. being bitten D. having been bitten D 2) 做原因状语 ①Because/As he was ill, he didn’t go to school. =Being ill, he didn’t go to school. ②Since yo