第 4 课时 时间 目标 课题名称 课型 Unit 2 Robots 主备课人 第 周 星期 1. Knowledge aims: Learn and grasp the rules of the Passive Infinitive 2.Ability aims: To master the usage of The Passive Infinitive 重点 .To master the rules of The Passive Infinitive 我的问题 难点 Learn and master some special pattern followed The Passive Infinitive 任务1：在课文中找出含有to be done的句子, 并分析它们的句法功能. 1 2 3 4 任务2：复习不同时态的被动语态： _____________________________________________________________________ A) 1） 定义：当动词不定式的逻辑主语是动词不定式所表示的动作的执行者时用主动语态；当动词不定式的逻辑主语是动词不定式所表达的动作的承受者时用被动语态。进行式和完成进行式没有被动语态。 2） 时态与语态 不定式 一般式 进行式 精 讲 互 动 完成式 完成进行式 主动式 被动式 / / 否定式 自 主 学 习 B) 不定式被动形式的用法 1．作______________It is an honour for me to be asked to speak here. 2．作______________ She asked to be sent to work in Xinjiang. 3．作______________ He wanted the letter to be typed at once. 4．作_____________The books are not allowed to be taken out of the room. 5．作_____________ Are you going to the meeting to be held in the teachers’ office? 6．作______________ She was too young to be assigned such work. 二、不定式有时还可以有完成式的被动式，在句中作主语、宾语、定语，或者宾语补足语 、主语补足语等，如： - 1 - It is a good thing for him to have been criticized.（______________） She preferred to have been given heavier work to do. (______________） He thought it an honour to have been invited to the party. （______________） The book is said to have been translated into many languages. （_____________） She was the first woman to have been elected to such a post. （______________） 三、不定式的主动形式表示被动 1．在“n／pron + be + adj + to do”结构中。常用的形容词有easy，difficult，hard，impossible，nice，pleasant，light，heavy，interesting，important，expensive，cheap,fit,dangerous等。 例如：He is hard to convince. He is an impossible person to work with． 2.在“too—to do; enough…to…”结构中。如： The problem is too difficult to work out． The house is big enough to live in. 3．在“with+n+to do”结构中。 例如：With nothing to do，he lay in bed． With so many exercises to do，I can‘t go to the cinema． 4．当不定式的逻辑主语在句中出现时。 例如：I have a letter to type today． Do you have anything to say? 5．当不定式隐含在for sb to do结构中时。 例如：This is the best book to read (=for us／you to read)． 6．一些作表语用的不定式的主动形式。 常见的这类动词有let(出租)，rent，hire，blame等。 例如：The house is to let． I felt l was to blame. 达 标 训 练 3. Little Tom should love____ to the theater this evening. A. to be taken B. to take C. being taken D. taking 4. With a lot of problems____, the newly-elected president is having a hard time. A. settled B. settling C. to settle D. being settled 5. The purpose of new technologies is to make life easier ________ it more difficult. - 2 -

A. not make B. not to make C. not making D. do not make 6. I hurried to the meeting hall, only____ that the meeting had been put off. A. to tell B. to be told C. telling D. told 7. This famous city is a very pleasant place________. A．to visit B．to visit in C．to be visited D．to visit it 作业 小结

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