人教版新目標(biāo)英語(yǔ)九年級(jí)復(fù)習(xí)課件情態(tài)動(dòng)詞

,（一）動(dòng)詞的種類 動(dòng)詞是表示動(dòng)作或狀態(tài)的詞，按其詞義和在句子中的作用可分為行為動(dòng)詞，連系動(dòng)詞，助動(dòng)詞和情態(tài)動(dòng)詞。,1行為動(dòng)詞實(shí)義動(dòng)詞 行為動(dòng)詞可分為及物動(dòng)詞 (vt)和不及物動(dòng)詞(vi)，及物動(dòng)詞表示動(dòng)作或狀態(tài)，有完整的詞義，能單獨(dú)作謂語(yǔ)，后跟賓語(yǔ)；不及物動(dòng)詞表示動(dòng)作或狀態(tài)，有完整的詞義，能單獨(dú)作謂語(yǔ)，但后面不能直接跟賓語(yǔ)，如要帶賓語(yǔ)則與介詞或副詞構(gòu)成短語(yǔ)。 如： More and more people study English.(vt) I have a book. (vt) She always comes late. The students are listening to the teacher carefully.(vi),2連系動(dòng)詞 連系動(dòng)詞本身有一定的詞義，但不能獨(dú)立作謂語(yǔ)，必須與表語(yǔ)一起構(gòu)成謂語(yǔ)。常用的連系動(dòng)詞有 be, get, turn, become, look, feel, grow, seem, sound, taste, smell等。 如： Our country is becoming stronger and stronger. I feel happy. 3助動(dòng)詞 助動(dòng)詞本身無(wú)詞義，不能單獨(dú)作謂語(yǔ)，只能和主要?jiǎng)釉~一起構(gòu)成謂語(yǔ)動(dòng)詞，表示否定，疑問(wèn)及動(dòng)詞的時(shí)態(tài)、語(yǔ)態(tài)、人稱和數(shù)等語(yǔ)法特征，助動(dòng)詞有 be,do,have,shall,will等。 如： How do you usually come to school? The children are playing yo-yo now. ,4情態(tài)動(dòng)詞 情態(tài)動(dòng)詞本身有一定的意義，但不能獨(dú)立作謂語(yǔ)，只能和主要?jiǎng)釉~原形一起構(gòu)成謂語(yǔ)，表示說(shuō)話人的語(yǔ)氣和情態(tài)。情態(tài)動(dòng)詞沒有人稱和數(shù)的變化。情態(tài)動(dòng)詞有 can (could),may(might),must, need, ought to, dare等。 如： Can I help you? - Must we go now? No, you neednt . a. can與be able to的用法有所區(qū)別。can只用于一般現(xiàn)在時(shí)和過(guò)去時(shí)，指本身有能力的“能”；be able to用于各種時(shí)態(tài)均可，指須經(jīng)過(guò)努力而“能”。 b. must與have/has to的用法。must表示說(shuō)話人主觀認(rèn)為“必須”，只用于一般現(xiàn)在時(shí)和一般將來(lái)時(shí)；have/has to表示客觀需要，意為“不得不”，它可用于各種時(shí)態(tài)。 cneed和dare既可作情態(tài)動(dòng)詞也可作行為動(dòng)詞。,情態(tài)動(dòng)詞,can / could 表示能力、可能性、許可、征求對(duì)方意見等 Little Maggie can dress herself now. You can go to Miami by train. It cant be my father. He is not here. Can I use your phone? Could you please help me.,may / might 表示可能性、許可、祝愿等 May I come to see you? You may/can phone me tomorrow. Mary is absent. She may/might be ill. May you succeed. might have done 表示本可以做而未做,must / have to must 必須 have to 不得不 1.We must keep our word. 2.I have to wear school uniform. have to 的否定式相當(dāng)于neednt，表示沒有義務(wù)、沒有必要做； Must的否定式用mustnt表示禁止,You dont have to / dont need to/ neednt tell him the truth. All these exhibits mustnt be touched. must可以表示肯定猜測(cè) 1.You must be ill. I can see it from your face. (must do 對(duì)現(xiàn)在、未來(lái)猜測(cè)) 2.Its 1:00 am, she must be sleeping now. (must be doing表示對(duì)現(xiàn)在進(jìn)行猜測(cè)) 3.It must have rained last night. (must have done 表示對(duì)過(guò)去的猜測(cè)),must 引導(dǎo)的一般疑問(wèn)句 Must I return your book this week? Yes, you must./ you have to. No, you neednt.,shall / should / ought to shall用于第一、三人稱疑問(wèn)句中，表示說(shuō)話人征求對(duì)方的意見或請(qǐng)求 1.Shall Tom go there with me? 2.Shall we watch movies? Shall用于第二、三人稱陳述句中，表示說(shuō)話人給對(duì)方的許諾、命令、警告、威脅等。 1.Tell Jerry that he shall get a gift if he is nice.,shall用于第三人稱陳述句中。在條約、規(guī)定、法令等文件中表示義務(wù)或規(guī)定。 1.The National Party Congress shall be held every five years. should表示責(zé)任、義務(wù) should have done/ shouldnt have done,will / would 表示意愿、請(qǐng)求等 I will help you. Will you come this way, please? Would you open the window, please? 表示習(xí)慣或特性 1.This old man is strange. He will sit for hours without saying anything.,used to/ usednt to, didnt use to / did use to Need常用語(yǔ)疑問(wèn)句、否定句和條件句。 1.Need I tell him every