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1,Unit 3,Grammar,Revisethe Passive Voice of ing Form,2,“(not) being+-ed分词和完成形式 “(not) havingbeen+-ed分词” 。,什么情况用V-ing 形式的被动式呢？,3,当动词-ing 形式的逻辑主语是 动作的承受者时，就要用动词-ing 形式的被动语态。 动词-ing形式的被动语态和它的 主动语态一样，在句中可以作主语、 宾语、定语、状语。,动词-ing形式的被动语态,4,1. Being killed by sharks in the sea is a common thing. 2. Being helped out by the killer whales, the whalers were able to make successful kill.,用作主语,