2013年九年级英语上册 Module 2 Great books Unit 3 Language in use课件 外研版.ppt
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1、Unit 3 Unit 3 Language in useLanguage in use 英语句子有主动语态和被动语态之分。主英语句子有主动语态和被动语态之分。主动语态表示主语是动作的执行者,而被动动语态表示主语是动作的执行者,而被动语态则表示主语是动作的承受者。如果我语态则表示主语是动作的承受者。如果我们不知道或没必要指出谁是动作的执行者,们不知道或没必要指出谁是动作的执行者,或需要强调动作的承受者,就要用到被动或需要强调动作的承受者,就要用到被动语态。语态。被动语态被动语态一、主动语态变被动语态的方法一、主动语态变被动语态的方法【例句例句】我们每天打扫教室。我们每天打扫教室。主动语态:主动
2、语态:We clean our classroom every day.主语主语 谓语谓语 宾语宾语 被动语态:被动语态:Our classroom is cleaned by us every day.主语主语 谓语谓语 宾语宾语【口诀口诀】宾提前变主,主变介宾提前变主,主变介by宾,谓语宾,谓语“be+done”,状语不用变。,状语不用变。【说明说明】主动语态变被动语态一般分四步:主动语态变被动语态一般分四步:1.将主动语态的宾语变为被动语态的主语;将主动语态的宾语变为被动语态的主语;2.将主动语态的谓语结构变为被动语态的谓将主动语态的谓语结构变为被动语态的谓语结构,即语结构,即“be+动
3、词的过去分词动词的过去分词”;3.将主动语态中的主语放在介词将主动语态中的主语放在介词by后,后,by短短语通常位于被动谓语结构之后;语通常位于被动谓语结构之后;4.主动语态中的时间、地点状语等在被动语主动语态中的时间、地点状语等在被动语态中不变。态中不变。二、一般现在时的被动语态的否定、疑问形式二、一般现在时的被动语态的否定、疑问形式一般现在时的被动语态的否定形式是在一般现在时的被动语态的否定形式是在am,is,are后加后加not;一般疑问句形式是将一般疑问句形式是将am,is,are提到句首;特殊疑问句形式是提到句首;特殊疑问句形式是“疑问词疑问词+一般疑问句一般疑问句”结构。如:结构。
4、如:The desk is made by him.(肯定句肯定句)The desk is not made by him.(否定句否定句)Is the desk made by him?(一般疑问句一般疑问句)What is the desk made of?(特殊疑问句特殊疑问句)三、主动语态变被动语态时常见错误分析三、主动语态变被动语态时常见错误分析主动语态变被动语态时,初学者常犯以下两主动语态变被动语态时,初学者常犯以下两种错误:种错误:1.误用人称代词误用人称代词 Jim often sees us.【误误】Us are often seen(by Jim).【正正】We are o
5、ften seen(by Jim).【析析】如果主动语态句子的宾语是人称代词如果主动语态句子的宾语是人称代词,在变被动语态时要用其对应的主格形式。在变被动语态时要用其对应的主格形式。2.混淆主、被动谓语结构混淆主、被动谓语结构 Does he do a lot of work every day?【误误】Does a lot of work done(by him)every day?【正正】Is a lot of work done(by him)every day?【析析】不要把主、被动谓语结构混在一不要把主、被动谓语结构混在一起,尤其在否定句和疑问句中。起,尤其在否定句和疑问句中。Wor
6、k in pairs.Compare these sentences Work in pairs.Compare these sentences with the sentences in the grammar box.with the sentences in the grammar box.1.Millions of people see Shakespeares 1.Millions of people see Shakespeares plays every year.plays every year.Shakespeares plays Shakespeares plays are
7、 seenare seen by by millions of people every year.millions of people every year.2.Today people think it is one of the 2.Today people think it is one of the greatest books in American literature.greatest books in American literature.Today it Today it is thoughtis thought to be one of the to be one of
8、 the greatest books in American literature.greatest books in American literature.3.Many people today still read3.Many people today still read Confucius works.Confucius works.Confucius works Confucius works areare still still readread by by many people today.many people today.4.People dont know Mark
9、Twain as a 4.People dont know Mark Twain as a great thinker.great thinker.Mark Twain Mark Twain isnt knownisnt known as a great as a great thinker.thinker.Now choose the correct form of the words Now choose the correct form of the words in the box to complete the sentences.in the box to complete the
10、 sentences.grow/isnt grown influence/are influenced punish/is punished respect/are respectedChinese people respect their parents.Chinese people respect their parents.Parents Parents are respectedare respected by Chinese by Chinese people.people.1.Tom _for fighting.1.Tom _for fighting.2.They _ Tom fo
11、r fighting.2.They _ Tom for fighting.3.Confucius thoughts _ people 3.Confucius thoughts _ people around the world.around the world.4.People in the world _by 4.People in the world _by Confucius thoughts.Confucius thoughts.5.Farmers _ rice in spring.5.Farmers _ rice in spring.6.Rice _ in winter in the
12、 north.6.Rice _ in winter in the north.is punishedis punishedpunishpunishinfluenceinfluenceare influencedare influencedgrowgrowisnt grownisnt grownWork in pairs.Ask and answer.which book/describe/in New standard magazine?The Adventures of Tom SawyerWhich book is described in New Standard magazine?Th
13、e Adventures of Tom Sawyer.1.what/happen/Tom Sawyer?He has many exciting adventures.he /think/to be dead What happened to Tom Sawyer?He has many exciting adventures.He is thought to be dead.2.who/punish/in the book?Injun Joe/punish/for/bad behaviour Who is punished in the book?Injun Joe is punished
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