1、Revise the Infinitive,1._ is what boys often do on Valentines Day.,To send girls flowers,2. However, what girls often do on this day is_.,3.This year,_ , Tom decided _ .,to send boys chocolate,to save money,to send his girl friend something different,4.But he really didnt know _.,what to send to his

2、 girl friend,5.Suddenly, the idea _ _ popped into his mind.,to send his girl friend a bunch of cabbages,6.He knew his girl friend would like him _ _because she was trying to keep fit.,to send her such a special gift,主語(yǔ),表語(yǔ),狀語(yǔ),賓語(yǔ),與疑問(wèn)詞連用,定語(yǔ),賓補(bǔ),(1).不定式作主語(yǔ)時(shí),往往放在謂語(yǔ)之后,用it作形式主語(yǔ).,To see is to believe.,Its im

3、possible for humans to fly like a bird now.,(2).不定式作表語(yǔ),protect the world.,He likes to_. I find it still necessary (for him) to _ if he wants to win.,(3) 不定式作賓語(yǔ),play basketball,句型：think/ consider/ find it + adj.+ to do,常接不定式作賓語(yǔ)的動(dòng)詞有： prepare decide determine demand ask request hope wish want expect de

4、sire agree aim refuse manage learn promise pretend choose fail dare offer help,三個(gè)要求五希望,同意瞄準(zhǔn)莫拒絕,設(shè)法學(xué)會(huì)去承諾,不要假裝在選擇,沒(méi)敢提出來(lái)幫助,一準(zhǔn)備二決定,有些動(dòng)詞如remember, forget, try regret, stop, go on ,mean, 等后既可接動(dòng)詞不定式又可接動(dòng)名詞，但意義不同。,remember/forget/regret+ to do 表該動(dòng)作未曾發(fā)生 remember/forget/regret+ doing表該動(dòng)作已發(fā)生 remember to do 記得要做某

5、事 remember doing 記得做過(guò)某事 forget to do 忘記要做某事 forget doing忘記做過(guò)某事 regret to do 遺憾要做某事 regret doing后悔做過(guò)某事,Eg:1. She often forgets to take her school bag to school.2.She forgot returning my book.,stop to do 停止一件事去做另一件事 stop doing停止做同一件事 go on to do 繼續(xù)做另一件事 go on doing繼續(xù)做同一件事 mean to do 打算做某事 mean doing意味

6、著做某事 try to do 盡力做某事 try doing 嘗試做某事,The teacher told me to_ I expect you to_,(4). 不定式作賓補(bǔ),hand in my papers,_.,give me some help,The teacher told me to clean the blackboard. I expect you to give me some help.,引導(dǎo)不定式作賓補(bǔ)的動(dòng)詞：,五看,watch,see,look at,observe,notice,三使,let,make,have,二聽(tīng),listen to,hear,一感覺(jué):,fe

7、el,Warn, tell, allow, help, ask, force等,+sb to do sth,+ sb do sth （省略to）,常用口訣如下：五看三室（使）兩廳（聽(tīng)）一感覺(jué),I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about.,(5). 不定式作定語(yǔ),(如果不定式中的動(dòng)詞是不及物動(dòng)詞, 則不定式中要有介詞.),請(qǐng)給我一支寫(xiě)字的筆.,Please give me a pen t

8、o write with.,something, anything, nothing, everything等復(fù)合不定代詞常用不定式做后置定語(yǔ)。,I came here to see you. He got up early to catch the train.,(6) 狀語(yǔ),in order to , so as to , enough to , only to , too.to.,表示目的、原因、結(jié)果或條件。,He didnt know _.,(7) . 與疑問(wèn)詞等連用,what to say,不定式與疑問(wèn)詞who,which, when, how, what 等連用，在句中起名詞作用，

9、可充當(dāng)主語(yǔ)、表語(yǔ)、賓語(yǔ)等。,He didnt know what to say.(賓語(yǔ)) How to solve the problem is very important.(主語(yǔ)) My question is when to start. (表語(yǔ)),注意：,在與why連用時(shí)，只用于why或why not開(kāi)頭的簡(jiǎn)短疑問(wèn)句中，后面緊跟的動(dòng)詞不定式不帶to。 Why not have a rest?,To tell the truth, I am not happy at the moment.,(8).獨(dú)立結(jié)構(gòu),to be frank, to be honest, to tell the t

10、ruth,(9) 不定式的省略,(1).不定式中的動(dòng)詞上文已出現(xiàn)過(guò),下文要 省略該動(dòng)詞.,e.g.: Would you like to go with me ? Id like to.,(2). 不定式是to be 結(jié)構(gòu), be 不可省.,e.g.: Would you like to be a teacher? Id like to be.,(10)不定式固定句型:,had better+ (not) do sth. Why (not) do sth.? prefer to do/prefer doing prefer + n./doing A +to + n./doing B prefe

11、r + to do A rather than do B would rather (not) do sth. would rather do A than (do) B would rather + 句子（過(guò)去式） （虛擬語(yǔ)氣） 要做,結(jié)構(gòu) : to do;(否定) not to do,二. 時(shí)態(tài)與語(yǔ)態(tài),不定式,to do,to be done,to be doing,to have done,to have been done,-,動(dòng)詞不定式的時(shí)態(tài),1. I opened the door to enter the room.,2. Mr. Smith is going to attend

12、 the meeting to be held tomorrow.,. 一般式( to do ).,不定式的一般式所表示的動(dòng)作（狀態(tài)）同時(shí)（或幾乎同時(shí)）發(fā)生，或之后發(fā)生。,.進(jìn)行式( to be doing),1. I am very glad to be working with you.,2. He is said to be coming.,如果謂語(yǔ)表示的動(dòng)作（情況）發(fā)生時(shí)，不定式所表示的動(dòng)作正在進(jìn)行。,動(dòng)詞不定式的時(shí)態(tài),動(dòng)詞不定式的時(shí)態(tài),.完成式（to have done),1. I am sorry to have kept you waiting so long.,2. You s

13、eemed to have read the novel written by Mr. Smith.,如果謂語(yǔ)表示的動(dòng)作發(fā)生在不定式之前。,動(dòng)詞不定式的語(yǔ)態(tài),.主動(dòng)式( to do / to be doing /to have done),1. We want to learn English well.,2.Robert is said_abroad, but I didnt know what country he studied in.(NMET99) to have studied B.to study C. made D. to make,動(dòng)詞不定式的語(yǔ)態(tài),.被動(dòng)式( to be d

14、one / to have been done),1. He didnt like to be laughed at.,2. He claimed _in the supper market when he was doing shopping yesterday.（上海98） being badly treated B.treating badly C. to be treated badly D. to have been badly treated.,1. The patient was warned _ oily food after the operation. A. to eat

15、not B.eating not C. not to eat D.not eating 2. 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 gone 3. Charles Babbage is generally considered _the first computer. A. to invent B. inventing C. to have invented D. ha

16、ving invented,4. Little Jim should love _ to the theatre this evening. A. to be taken B. to take C. being taken D. taking 5. _ late in the afternoon, Bob turned off the alarm. A. To sleep B. Sleeping C. Sleep D. Having sleep 6. The teacher asked us _ so much noise. A. dont make B. not make C. not ma

17、king D. not to make,7. Paul doesnt have to be made _. He always works hard. A. learn B. to learn C. learned D. learning 9. 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 to,10. Ive worked with children before, so I know wh

18、at _ in my new job. expected B. to expect C. to be expecting D. expects,I want to tell you something,Hi, I want to tell you something. I will go to Ruian for shopping this afternoon. Do you want to go with me? First, Id like to go to KaiTai store. But to be frank, most of time I am there only to do some window shopping, because everything is ex