（人教新课标）高二英语必修5课件：Unit 3 Life in the future Period 3 Grammar.ppt

Unit 3 Life in the future Grammar 本节课主要详细讲解过去分词做状语的五种情况，即过去分词作时间状语，原因状语，条件状语，方式状语，让步状语，特别是过去分词做状语和状语从句的转化，使得学生更好的理解过去分词这一用法。在这一部，主要用完成句子的形式加以讲解，另外，附了相关的高考题目，而且，基本上都给予了详细解析，便于学生更加透彻的理解这一用法。 在过去分词作定语部分，重点讲述了过去分词作前置定语和后置定语，其次，讲述了过去分词作定语和定语从句的区别。 * The Past Participle 过 去 分 词 III -- as adverbial作状语 -- as attribute作定语 Used as the Adverbial Worried about the journey, I was unsettled for the first few days. = As I was worried about the journey, I was unsettled for the first few days. Rewrite the sentence below. participle used as the adverbial Read three more sentences with past participles used as the adverbial. 1. Well-known for their expertise, his parents’ company, called “Future Tour”, transported me safely into the future in a time capsule. 2. Hit by a lack of fresh air, my head ached. 3. Exhausted, I slid into bed and fell fast asleep. 过去分词(短语)作状语时，其逻辑主语为句子的主语。如： Asked why he did it, the young man said it was his favorite. 过去分词作状语，相当于一个状语从句。 过去分词作时间状语 1. When it is heated, ice will be changed into water. When heated, ice will be changed into water. 过去分词作时间状语，相当于一个时间状语从句。有时，过去分词前可以加when, while, until等词来强调过去分词所表示的动作与主句谓语动词所表示动作的时间关系。 2. When it is seen under a microscope, a fresh snowflake has a delicate six-pointed. Seen under a microscope, a fresh snowflake has a delicate six-pointed shape. * * When 　　 help, one often says “Thank you.” or “It’s kind of you.” A. offering B. to offer C. to be offered D. offered 2. When ____, the museum will be open to the public next year. A. completed B. completing C. being completed D. to be completed [高考真题] D A 过去分词作原因状语 * 过去分词作原因状语，相当于as, since, because等词引导的原因状语从句，这类状语多放在句首。 2. Because it was done in a hurry, his homework was full of mistakes. Done in a hurry, his homework was full of mistakes. * 1. Since / As she was given advice by the famous detective, the young lady was no longer afraid.