The infinitive 動(dòng)詞不定式,to do,not to do,作主語(yǔ),to do 作主語(yǔ)，常放句尾，用it作形式主語(yǔ),1. It be adj. n. to do sth. Its good to see you.,To see is to believe.,2. It takes sb. some time to do sth.,Its difficult to learn maths well.,Exercise,跳舞非常有趣。 種些植物是非常有必要的。 說(shuō)英語(yǔ)對(duì)我來(lái)說(shuō)并不容易。 聽(tīng)到你的聲音真高興。,To dance is a lot of fun.,It is a lot of fun to dance.,To grow plants is very important.,To hear your voice is so nice.,To speak English is not easy for me.,It is so nice to hear your voice.,作表語(yǔ),To see is to believe.,他的愿望是成為一名醫(yī)生。,His wish is to be a doctor.,Exercise,我的工作是每天打掃這間屋子。 最上策的計(jì)劃就是馬上離開(kāi)這兒。 3 我的夢(mèng)想就是成為一名科學(xué)家。,My work is to clean the room every day.,The best plan is to leave at once.,My dream is to be a scientist.,作賓語(yǔ) (v. + to do ) I want to buy a computer. She hopes to find a better job. I wish to go with you. need to do learn to do agree to do plan to do decide to do refuse to do begin to do start to do try to do forget to do remember to do like to do stop to dogo on to do,Exercise,他想借用我的錄音機(jī)。 他們開(kāi)始讀和寫(xiě)。 李琳喜歡玩什么？她喜歡踢足球。 你長(zhǎng)大了想做什么？,He wants to borrow my radio.,They began to read and write.,What sports does Li Lin like to play? She likes to play soccer.,What do you want to be when you grow up?,作賓語(yǔ)補(bǔ)足語(yǔ)：(v. + sb. + to do ),She asked me to help her. The teacher told him to come on time. Edisons mother taught him to read and write. want sb to dowish sb to do get sb to doorder sb to do find sb to be like sb to do would like sb to dohelp sb to do,他要求我再大聲點(diǎn)兒。 Lucy告訴他不要哭。 吉姆告訴李明由衷地祝福每個(gè)人。 他讓我再做一次。,She asked me to speak louder.,Lucy told him not to cry.,Jim told Li Ming to give his best wishes to everybody.,He let me do it again.,作賓語(yǔ)補(bǔ)足語(yǔ)不帶to 的情況：,Let me do it. I saw him cross the street. 常見(jiàn)動(dòng)詞有： 使役動(dòng)詞: let, make, have 感官動(dòng)詞: see, watch, hear, feel, listen to 比較： I heard her singing in the next room. I heard her sing in the next room.,作狀語(yǔ) (adverbial)：,He came to show me his new CD player. I went there to see my teacher. She came back to get her English book. The boy was too frightened to move.,(目的),(目的),(目的),(結(jié)果),I am glad to see you.,（原因）,Im sorry to trouble you.,（原因）,作定語(yǔ),Have you get anything to say?,Hes looking for a room to live in?,She has no clothes to wear?,用作定語(yǔ),Give me something to drink.,I have two books to read.,They have much food to eat.,（這時(shí)不定式與被修飾詞有動(dòng)賓關(guān)系。 若是不及物動(dòng)詞，介詞不能省略）,He asked for a room to live in.,I dont have a pen to write with.,The ice is hard to skate on.,He bought a toy to play with.,1 我有許多書(shū)要看。 2 她有幾個(gè)問(wèn)題要問(wèn)。 3 他有一臺(tái)電視要修。 4. 我沒(méi)什么可擔(dān)心的。,I have many books to read.,She has a few questions to ask.,He has a TV set to repair.,I have nothing to worry about.,他是一個(gè)值得信賴(lài)的人。 6 愛(ài)迪生是第一個(gè)發(fā)明電燈的人。 7 他那生病母親最多可活三個(gè)月。,He is a man to believe in.,Edison was the first man to invent the lights.,His sick mother has three months to live at most.,不定式與疑問(wèn)詞連用,常用動(dòng)詞有: ask know learn teach tell understand等。,7.疑問(wèn)詞who, what, which, where, when, how 加to do可構(gòu)成不定式短語(yǔ)，在句中可用作主語(yǔ)、 賓語(yǔ)、賓語(yǔ)補(bǔ)足語(yǔ)、表語(yǔ)等。,When to start has not been decided.,I dont know what to do.,He can tell you where to get the book.,The question is who(m) to ask.,