英语：unit2《robots》period 3教案（新人教版选修7）

英语：Unit2RobotsPeriod 3教案（新人教版选修7）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 the 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 did 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 robot.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_to_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 opportunity 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_learn.英语并不好学。一些固定用法，如“挨骂，受责备，受批评” 用be to blame；“(东西等)出租”用to let。He is to blame for what he has done.他应为他所做的受责备。The house is to let.房子要出租。Step 3Exercises1The crowd cheered wildly at the sight of Liu Xiang，who was reported _ the world record in the 110meter hurdle race.Abreaking Bhaving brokenCto have broken Dto break2I like getting up very early in summer.The morning air is so good _.Ato be breathed Bto breathe Cbreathing Dbeing breathed3_ the project as planned，well have to work two more hours a day.ACompleting BComplete CCompleted DTo complete4Having a trip abroad is certainly good for the old couple，but it remains_ whether they will enjoy it.Ato see Bto be seen Cseeing Dseen5I hurried to the meeting hall，only_ that the meeting had been put off.Ato tell Bto be told Ctelling Dtold6Do let your mother know all the truth；she appears_ everything.Ato tell Bto be told Cto be telling Dto have been told7Little Tom should love_ to the theater this evening.Ato be taken Bto take Cbeing taken Dtaking8It is said that plastics can be used to_ many things.Now people are used to_ plastics products.Amake；using Bmaking；using Cmaking；use Dmake；use9With a lot of problems_，the newlyelected president is having a hard time.Asettled Bsettling Cto settle Dbeing settledKeys：15 CBDBB69 DAACStep 4DrillingAsk students to do Exercise 1 on Page 14 and then check the answers together.Keys：Exercise 1be tested out，be harmed，be offered，was amazed，was not allowed，be discovered，be completely transformed，were impressed，be envied，be rebuiltAsk students to do Exercise 2 and then check the answers together.Keys：Exercise 21to be designed2.to be rebuilt3.to be accompanied4.to be known as5.to be filled with6.to be tested out7.to be envied8.to be set asideStep 5Using the passive infinitiveTranslate the following sentences into English using the passive infinitive.1那本关于圣经的书需要在这个周末之前还给图书馆。2下周末前，这个旧扶手椅将由一个沙发代替。3不要着急，你有足够的时间把那个传真发到你的公司。4你同妻子离婚的决定必须要得到她的同意。5刚刚出了一起事故，不过没有必要惊慌，没有人受伤。6虽然她考得不错，但是她预料父母还是会对考试的结果感到失望。7当在医院进行大手术的时候，她得到了家人的关爱和支持，为此她感到非常高兴。8他为自己被宣布成为智力竞赛冠军得主的事感到十分兴奋。9他把他们已经得到的2000元与将提供的1500元加在一起，总共3500元。10没有主力队员的参与，他们一定会在即将到来的比赛中被打败。Suggested answers：1That book on the Holy Bible needs to be returned to the library by/before the end of the week.2That old armchair is to be replaced by a sofa next week.3Dont worryyou still have plenty of time for that fax to be sent to your company.4Your decision to divorce your wife has to be made with her agreement.5There has been an accident but there is no need to be alarmed.Nobody has been hurt.6Although she had done well，she expected her parents to be disappointed by her exam results.7She was happy to be supported by the affection of her family when she had a serious operation in hospital.8He was so excited to be de