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111The Third Period Grammar-Book5，Unit3Teaching goals 教学目标1. Target language目标语言重点词汇和短语swiftly, unsettle, speed up，puzzled，frightened，disappointed，involved2. Ability goals 能力目标Enable the Ss to use the past participle as the adverbial and the past participles as the attribute.3. Learning ability goals 学能目标 Help the Ss learn how to use the past participle as the adverbial and the past participles the attribute.Teaching important difficult points 教学重难点Distinguish the usage of the past participle as the adverbial and the past participle as the attribute.Teaching methods 教学方法Demonstration（Powerpoint）Practice.Teaching aids 教具准备A computer, a projector and a blackboard.Teaching procedures ways 教学过程与方式Step I Word StudyThis part is a consolidation of the words learnt in this unit. Ask the Ss to do the Exx. 1 2 on pages 20 21 and exercises in USING WORDS AND EXPRESSIONS in Workbook independently. Then check the answers.Step II GrammarThe Ss will learn the usage of the past participle in different situations. Task 1 Make clear to the Ss the usage of the past participle as the adverbial.T: Now please look at the sentence: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.过去分词作状语：用作状语的过去分词通常来自及物动词。过去分词用作状语时，修饰主句的谓语动词，意义上相当于状语从句，表示时间、条件、原因、伴随状况等。过去分词作状语，前边往往可以加when, while, as if, as though。一般说来，这种结构的逻辑主语必须与主句的主语一致。例如：Whenever praised, she blushes.（作时间状语）= Whenever she is praised, she blushes.United, we stand; divided, we fall.（作条件状语）= If we are united, we stand; if we are divided, we fall.Written in great haste, this book is full of errors.（作原因状语）= Because this book is written in great haste, it is full of errors.Mary was reading a love story, completely lost to the romantic life.（作伴随状语）= Mary was reading a love story, and she was completely lost to the romantic life.Although born in Germany, John lives and works in U.S.A.（作让步状语）= Although John was born in Germany, he lives and works in U.S.A.Task 2 Make clear to the Ss the usage of the past participle as the attribute.T: Now please look at these two sentences:1. I followed him to collect a hovering carriage driven by computer.= I followed him to collect a hovering carriage that / which was driven by computer.2. Tomorrow you will be ready for some visits organized by the company.= Tomorrow you will be ready for some visits that / which was organized by the company.过去分词作定语：a. 用作前置定语的过去分词通常来自及物动词，带有被动意义和完成意义。例如：We like skating in the frozen lake in the winter.= We like skating in the lake which has been frozen in the winter.How many finished products have you got up to now?= How many products that have been finished have you got up to now?来自不及物动词的过去分词很少能单独用作前置定语，能作这样用的仅限以下几个词，这时仅表示完成意义，不表示被动意义：a retired worker = a worker who has retiredan escaped prisoner = a prisoner who has escapeda faded / withered flower = a flower that has faded / witheredfallen leaves = leaves that have fallenthe risen sun = the sun that has just risena returned student = a student who has returnedvanished treasure = treasure that has vanishedb. 用作后置定语的过去分词通常也来自及物动词，表示被动意义和完成意义。这明相当于一个定语从句。例如：Things seen are better than things heard.= Things that / which are seen are better than things that / which are heard.The lobster broiled over charcoal was delicious.= The lobster that / which was broiled over charcoal was delicious.Then let the Ss do Exx. 14 on pages 20 21 and exercises in USING STRUCTURES in Workbook to consolidate what they have learnt. And check the answers. If time permits, let the Ss learn the following usage of the past participle in the class.过去分词作表语：过去分词作表语表示主语所处的状态。用作表语的过去分词大多来自及物动词；不及物动词的过去分词能作表语的只限于少数表示位置转移的动词，如go, come, assemble等，它们用在联系动词之后，表示完成意义，无被动意义。例如：The man looked quite disappointed.He is greatly discouraged by her refusal.His hair is nearly all gone.已经形容化了的过去分词大多可作表语，常见的有:accomplished, amazed, amused, astonished, broken, closed, completed, complicated, confused, crowded, devoted, disappointed, discouraged, drunk, excited, frightened, hurt, interested, lost, satisfied, surprised, worried等。过去分词作宾语补足语：a. see, hear, feel, find, think等表示感觉和心理状态的动词可以带过去分词作宾语补足语。例如：Tom found himself involved in an awkward situation.I saw Tom dressed like a beggar in the street.Everybody thought the match lost until the last minute.b. make, get, have, keep等表示“致使”意义的动词可以带过去分词作宾语补足语。例如：I have my clothes washed everyday.Dont get your schedule changed; stay with us in the class.Hes trying to make himself understood.Please keep us informed of the latest price.c. like, want, wish, order等表示希望、要求、命令等意义的动词可以带过去分词作宾语补足语。例如：We dont like such topics (to be) discussed in class.I wish this problem (to be) solved this week.Step HomeworkDo the exercise about the past participle in English Weekly.111
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