新人教版高中英语选修2Unit 4 Journey Across a Vast Land教学设计（内容丰富）

二、过去分词(短语)作状语1．过去分词(短语)表示被动，表示动作已经完成，其逻辑主语则为句子的主语。过去分词作状语时，可单独使用，也可以在其前面加上适当的连词，可表示时间、条件、原因、让步、方式、伴随等。When offered help, one often says “Thank you” or “It's kind of you”．(时间状语)当被提供帮助的时候，人们常说“Thank you”或“It's kind of you”。Given another chance, I will do it much better.(条件状语)如果再给我一次机会，我会干得更好。Greatly inspired by what he did, I joined him in helping others.(原因状语)由于受到他所做的事情的鼓励，我也加入了帮助他人的行列。Visited many times, the place is still worth visiting again.(让步状语)虽然已参观了几次，这个地方仍值得再来。He has been preparing his paper all day long, locked in his study.(方式状语)锁在书房里，他一整天都在准备论文。The guest walked into the room, greeted by his owner.(伴随状语)客人一边和主人打招呼，一边走进了房间。2．过去分词(短语)作状语时在句中的位置过去分词(短语)在句中作状语时，可放在主句前作句首状语，后面用逗号与主句隔开；当放在主句的后面时，前面用逗号与主句隔开。Done in a hurry, his homework was full of mistakes.