人教版高中英语选修7-Unit2-Grammar-优秀教案

1、Unit2 Grammar 优秀教案Teaching aims1Revise the passive voice(including the infinitive) and know the exact meaning of the structure.2Be able to use the useful words，expressions and structures correctly.Teaching proceduresStep 1RevisionAsk students to answer the following questions without referring to th

2、e textbook.1What was going to be tested out by Larrys wife，Claire?2How did Larry Belmont finally persuade his wife to accept the experiment?3How did Claire feel when she was offered sympathy by a robot?4What did Tony expect to do about the house before he was to leave and Larry was to return?5How di

3、d Claire feel when she was envied by those women?6What happened to Tony at last?Suggested answers：1The robot was going to be tested out by Larrys wife，Claire.2Larry persuaded her that the robot wouldnt harm her or allow her to be harmed.3She thought it was ridiculous to be offered sympathy by a robo

4、t.4Tony expected the house to be completely transformed.5She felt it a sweet victory to be envied by those women.6Tony had to be rebuilt.Step 2Grammar learning1不定式的被动形式当不定式与逻辑主语之间是被动关系时，即不定式的逻辑主语是不定式所表示动作的承受者，不定式一般要用被动形式。其被动式可以分为两种：一般式和完成式。(1)一般式：to be done，表示不定式动作在谓语动词之后或者同时发生。It is a great honor t

5、o be invited to speak here.很荣幸被邀请在这里讲话。The novel is said to be published next month.据说这本小说下月要出版。(2)完成式：to have been done，表示不定式动作发生在谓语动词之前。The book is said to have been translated into six languages.这本书据说已经被翻译成六种语言。The boss preferred to have been given more work to do.老板宁愿被分给更多的工作做。被动一般式to be done完成式

6、to have been done2.不定式被动形式的作用(1)作主语Its an honor to be invited to the ceremony.很荣幸被邀请赴宴。Its a pity to be kept in the house in such fine weather.在这样好的天气被关在家里真是遗憾。(2)作表语The letter is to be sent by airmail.这封信笺要空邮。(3)作宾语She didnt like to be treated as a child.她不喜欢被当成孩子。The boy asked to be given an oppor

7、tunity to try again.那男孩要求给他再试一次的机会。(4)作宾语补足语Id like my bedroom to be cleaned.我想整理一下我的卧室。(5)作定语He was the last one to be asked to speak at the meeting.他是最后一个在会上被邀请发言的人。(6)作状语His mother left the small village，never to be seen again.他母亲离开了那个小山村，再也没有人见过她。3不定式有些要注意的地方(1)感官动词和一些使役动词的不定式的主动形式要省去to，但在变成被动语态

8、后需要加上to，能这样用的动词或动词词组有：make，have，let，see，hear，notice，listen to，watch等。如：We often see him act like that.He is often seen to act like that.我们常常看到他那样做。(2)在cant help but，have nothing to do but结构中，介词but后的不定式省去to。如：I cant help but suspect his motive.我不禁怀疑起他的动机。I have nothing to do but watch TV.我没什么事情可做，除了看电视。(3)不定式有时要用主动形式表示被动意义形容词以及含有形容词的名词后的不定式，一般用主动形式表示被动意义，其中形容词常见的有easy，difficult，important，impossible等。如：The work is impossible to finish in two days.工作不可能两天之内完成。 English is not so easy to l