英语宾语从句专项(共30张)(好)介绍.ppt

* * Object Clauses 宾语从句 一．教学任务 学习宾语从句 二．教学重点 　　 1.宾语从句的概念 2.宾语从句的引导词 3.宾语从句中的语序 　　 4.宾语从句的时态变化 　　 5.直接引语变间接引语与宾语从句的关系 　　 教学难点 1. if与whether的区别 2. when与if 引导的宾语从句和状语从句 3.宾语从句与简单句的互换 We know him． We know he likes English. 主s 主s 谓v 谓v 宾o 宾o 宾语从句就是由一个句子来构成主句的宾语 主s 谓v 宾o 简单句 复合句 一 什么 是宾语从句？ 试比较 Do you know who is the first Chinese astronaut(宇航员)? Our teacher told us that the earth goes around the sun. Please tell me where she has gone. I don’t know if he will come tonight. Let’s find out what’s on tonight . Find out the Object Clauses We are proud of that Beijing is one of the biggest cities in the world . 2.由连接代词 Who,whom,whose,which,what和连接副词 where,how,why,when引导的宾语从句。这些连词既有词义又充当句子成份。 e.g.1)Do you know whose book it is ?（谁的，作定语） 2)Could you tell me why the train is late? （为什么，作状语） 3)He asked who could answer the question.（谁，作主语） 注：that 在句中无词义，在从句中不能充当句子成分，在口语中往往被省略。 e.g. I hear (that) he will be back in an hour. 1.由从属连词that引导的宾语从句 二 .宾语从句的引导词 3.由从属连词 whether, if 引导的宾语从句 e.g. I want to know if/whether she is right . They didn’t know whether Tom could come back or not . if/whether 引导宾语从句 表示“是否”之义，在句中不充当句子成份。 if/whether可互换, 但whether…or not为固定搭配. 看一看：I don’t know if it will rain tomorrow.If it rains ,I’ll stay at home. I want to know when he will come back.When he comes back, please tell me. 想一想：when和if 可以引导什么从句？它们的时态有什么特点？ when和if 既可以引导宾语从句，也可以引导状语从句。在宾语从句中，时态根据需要确定；在状语从句中，遵循主将从现的原则。 If 与whether 的区别 I don’t know _____ he will come or not. I don’t care of ______ he is handsome. He wondered ______ to stay here the next week. ____ he will come is not decided. 与or not 连用只能用whether 介词后只能用whether 与to do 不定式连用只能用whether 作主语只能用whether Helen says that she will learn French next year. Do you know where he comes from? He asked me if I could get to the bus station on time. 三. 宾语从句的语序 无论主句是陈述句还是疑问句，宾语从句都是运用陈述句的语序，即是“主语在前，谓语在后”的顺序。 改一改