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1、不定式公开课oTheyadvisedmetogiveupsmoking.oTheyadvisedme_smoking.oHepromisedtotakecareofthepooroHepromised_thepoorStep 1 基本形式和否定形式基本形式和否定形式肯定式肯定式:to do 否定式否定式:not to donottogiveupnottotakecareof动词不定式的时态和语态动词不定式的时态和语态I opened the door to enter the room.一般式一般式(to do/to be done).不定式的一般式所表示的不定式的一般式所表示的动作（状态）同
2、时（或几动作（状态）同时（或几乎同时）发生，或之后发乎同时）发生，或之后发生。生。Step 2.进行式进行式(to be doing)They seemed to be talking about something secret when I came in.如果谓语表示的动作如果谓语表示的动作（情况）发生时，不（情况）发生时，不定式所表示的动作正定式所表示的动作正在进行。在进行。.完成式（完成式（to have done/to have been done)2.Im pleased to have been given this chance.1.You seemed to have re
3、ad the novel written by Mr.Smith.如果不定如果不定式的动作式的动作发生在谓发生在谓语之前。语之前。如果不定式的逻辑主语是不定式所表如果不定式的逻辑主语是不定式所表示的动作的承受者，不定式要用示的动作的承受者，不定式要用被动被动形式形式.语态语态时态时态主动语态主动语态被动语态被动语态一般时一般时 进行时进行时完成时完成时 小小 结结to doto be doneto be doing/to have done to have been done练习练习1.Hello!Its good _(see)you again.2.Bye-bye,Im glad _(see
4、)you.3.They pretend _(work)hard when the teacher came in.4.The girl students is said _(send)abroad last week.5.All the students in our class have entered for the sports-meeting _(hold)next week.1.作主语作主语2.作宾语作宾语3.作宾语补足语作宾语补足语4.作定语作定语5.作状语作状语6.作表语作表语To do like that is foolish.I want to see you this ev
5、ening.All you have to do is to finish it quickly.We found a house to live in.She came here to study English.I warned the patient not to drink cold water after the operation.主语主语 宾语宾语表语表语 定语定语 状语状语 宾补宾补Step 4 Step 4 不定式的用法不定式的用法Doyoubelievehecanflylikeabird?HowcanyoubelieveIcanflylikeabird?o_is to be
6、lieve.oIts impossible for humans _now.To seeto fly like a bird作主语作主语_is our duty._is right=It is right to give up smoking.1.帮助你是我们的职责。帮助你是我们的职责。2.放弃吸烟是对的。放弃吸烟是对的。不定式短语作主语时，如果不定式短语作主语时，如果主语太长，主语太长，常用常用it 作作形式主语，真正的不定式主语后置。形式主语，真正的不定式主语后置。To help you To give up smoking作主语作主语。一般用不定式做主语的句型 It+be+adj+for
7、 sb.to do sthIt+take+sb+time+to do sthIt+cost+sb+money+to do sthoMy job to_.oYour task to_.isis.不定式作表语不定式作表语protect the world.作表语作表语My job is_To see is_.1.我的工作是教英语。我的工作是教英语。2.眼见为实。眼见为实。to teach English.to believeoHe likes to_.oI find it still necessary(for him)to _ if he wants to win.不定式作宾语不定式作宾语pla
8、y basketball句型：句型：think/consider/find it+adj.+to do 只能接不定式作宾语的动词只能接不定式作宾语的动词口诀：口诀：决定想做计划需要同意，能做被用来做的事决定想做计划需要同意，能做被用来做的事 迫不及待下决心做过去常常未能做的事迫不及待下决心做过去常常未能做的事 决定想做计划需要同意，能做被用来做的事决定想做计划需要同意，能做被用来做的事 decide to do sth.决定做某事决定做某事 want would like to do sth.想做某事想做某事 plan to do sth.计划做某计划做某 need to do sth.需要做
9、某事需要做某事 agree to do sth.同意做某事同意做某事 afford to do 能做某事能做某事 be used to do 被用来做被用来做The teacher told me to_I expect you to_.不定式作宾补不定式作宾补hand in my papers动词不定式动词不定式动词不定式动词不定式作作宾宾补补动词动词+宾语宾语+to do 动词动词+宾语宾语+do Li Mei asked me to show her the new dictionary.注：有以上结构的常用动词有注：有以上结构的常用动词有 tell.wish,ask,want,like
10、,beg,invite,warn,allow,encourage,advise 等。等。(不带不带 to 的不定式的不定式)注：常用的动词是：感官动词注：常用的动词是：感官动词see,hear,feel,watch,notice；使役动词使役动词 have,make,let.在在feel,hear,listen to,look at,notice,observe,see,watch,have,let,make 等词后的补足语中，不定式不带等词后的补足语中，不定式不带to。但。但 是这些句子如果变成被动结构时，就必须带是这些句子如果变成被动结构时，就必须带to。Eg.I often hear h
11、im sing the song.He is often heard _the song.注意 allow,ask,advise,encourage,expect,forbid,force,get,would like,order,permit,persuade,teach,tell,want,warn,wish(构成构成“V.+Sb.+to do”“V.+Sb.+to do”的形式的形式)to sing宾补宾补 接不定式作宾语补足语的动词接不定式作宾语补足语的动词口诀：口诀：请求与命令请求与命令 想要邀请期待鼓励与建议想要邀请期待鼓励与建议 答应告诫允许提醒和帮助答应告诫允许提醒和帮助请求与
12、命令请求与命令 ask sb.to do sth.请求某人做某事请求某人做某事 tell sb.to do sth.命令某人做某事命令某人做某事想要邀请期待鼓励与建议想要邀请期待鼓励与建议 want sb.to do sth.想要某人做某事想要某人做某事 invite sb.to do sth.邀请某人做某事邀请某人做某事 expect sb.to do sth.期待某人做某事期待某人做某事 encourage sb.to do sth.鼓励某人做某事鼓励某人做某事 advise sb.to do sth.建议某人做某事建议某人做某事 答应告诫允许提醒和帮助答应告诫允许提醒和帮助 promis
13、e sb.to do 答应某人做某事答应某人做某事 warn sb.not to do sth.告诫某人做某事告诫某人做某事 allow sb.to do sth.允许某人做某事允许某人做某事 remind sb.to do sth.提醒某人做某事提醒某人做某事 help sb.(to)do sth.帮助某人做某事帮助某人做某事I have something to say,but my brother has a lot of homework _,so I am looking for someone _.不定式作定语不定式作定语不定式作定语时，不定式作定语时，应放在被修饰词的后面，应放在
14、被修饰词的后面，而且放在其他后置定语之后。而且放在其他后置定语之后。作定语作定语（必须后置）（必须后置）1.Betty was the first/the last to come to school.2.We ll attend the meeting to be held next week.3.I have a child to look after at home.Do you have anything to say.Its a good school to study in.(具有具有逻辑上的主谓动宾关系）逻辑上的主谓动宾关系）I got up early to_.I came h
15、ere to_.(6)不定式作状语不定式作状语in order to,so as to,enough to,only to,too.to.,catch the train作状语作状语He spoke loudly(so as/in order)to be heard.They jumped with joy to hear the news.Im too tired to walk any further tonight.目的状语目的状语.原因状语原因状语.结果状语结果状语1他回家去取钥匙2我说了什么话使你不高兴?3赢了这场足球赛,我们感到自豪He went home _ his keyWha
16、t have I said _you happy?We are proud _the football matchto getto maketo have won目的状语目的状语.原因状语原因状语.结果状语结果状语Consolidation(p20)To tell the truth,I am not happy at the moment.(7).独立结构独立结构to be frank,to be honest,to tell the truth牛刀小试牛刀小试1.Mymotheroftenasksme_somecleaningonSundaysAdoB.doesC.didD.todo2.D
17、oyouoftenhearJohn_inhisroom?Listen!Nowwecanhearhim_inhisroom.A.sing,tosingB.sing,singC.sing,singingD.tosing,singing3.Lets_swimmingaftertheexam.A.goB.goesC.togoD.went4.Youdbetter_abus.A.tocatchB.catchC.catchesD.catchingp241.The patient was warned _ oily food after the operation.A.to eat not B.eating
18、not C.not to eat D.not eating2.I would love _ to the party last night but I had to work extra hours to finish a report.A.to go B.to have gone C.going D.having gone3.Charles Babbage is generally considered _the first computer.A.to invent B.inventing C.to have invented D.having invented4.Little Jim sh
19、ould love _ to the theatre this evening.A.to be taken B.to take C.being taken D.taking5._ late in the afternoon,Bob turned off the alarm.A.To sleep B.Sleeping C.Sleep D.Having sleep6.The teacher asked us _ so much noise.A.dont make B.not make C.not making D.not to make7.Paul doesnt have to be made _
20、.He always works hard.A.learn B.to learn C.learned D.learning9.The boy wanted to ride his bicycle in the street,but his mother told him _.A.not to B.not to do C.not to ride D.do not to10.Robert is said _ abroad,but I dont know what country he studied in.A.to have studied B.to study B.C.to be studyin
21、g D.to have been studying11.The purpose of new technologies is to make life easier,_ it more difficult.A.not make B.not to make B.C.not making D.dont make12.Ive worked with children before,so I know what _ in my new job.A.expected B.to expect B.C.to be expecting D.expects13.Having a trip abroad is c
22、ertainly good for the old couple,but it remains _ whether they will enjoy it.A.to see B.to be seen C.seeing D.see14.It is said in Australia there is more land than the government knows _.A.it what to do with B.what to do with it B.C.what to do it with D.to do what with it1.So far nobody has claimed
23、the money in the library.（湖南）（湖南）A.discovered B.to be discovered C.discovering D.having discovered2.That is the only way we can imagine _ the overuse of water in students bathrooms.(上海上海)A.reducing B.to reduce C.reducedD.reduce3.There were many talented actors out there just waiting _.(江西）江西）A.to di
24、scover B.to be discovered C.Discovered D.being discovered 4.I have a lot of readings _ before the end of this term.(山东山东)A.completing B.to completeC.completed D.being complete5.With Fathers Day around the corner,I have taken some money out of the bank _ presents for my dad.（全国（全国）A.buy B.to buy C.buying D.to have bought6.His first book _ next month is based on a true story.(陕西陕西)A.published B.to be published C.to publish D.being published此课件下载可自行编辑修改，仅供参考！此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢感谢您的支持，我们努力做得更好！谢谢