动词类别动词类别 特点例句行 为为 动动 词词及物动词动词 (vt.)跟宾语宾语The victims parents have offered a reward of $2,000. 不及物动词动词 (vi.)不直接跟宾语宾语We will live on Mars by the year 2010. 系动词动词 (link.v.)跟表语语Mr got married in 1960.助动词动词 (aux. V)have，will, be (doing)（ 无特殊意义义）I have known the place for many years. When you play this game , you will play the role of Itchy feet. 情态动词态动词 （mod.v. ）跟动词动词 原形You ought to go to the toilet before the film begins. I cant decide which film to watch.连系动词+adj. /n.n连系动词本身有词义，但不完整，不能单独作 谓语，必须跟表语一起构成合成谓语，说明主 语的状态、特征、性质或身份。n连系动词可具体分为三类：n1、表示状态的动词be n2、表示“感觉”的词 n3、表示“变”、“变成”的意思的词1、表示状态的动词be be, stay, keep, seem 2、表示“感觉”的词，如look（看起来），seem(看 起来似乎)，feel（觉得，摸起来），smell（闻起 来），sound（听起来），taste（尝起来）等 3、表示“变”、“变成”的意思的词 如become, get, grow, turn, go, 解释为“变”、“变得”情态动词can, could, may, might, must, should , ought to, neednt 情态动词 can/may/must/neednt的基本用法：n can: 能； 能够n may: 可以n must: 必须；应该n need: 不必practice1. I _ speak a little English, but I _ speak French. 2.Cars _ stop when the traffic lights are red. 3.A:Must I finish my homework before supper?B: No, you _. 4. .-Mum, Ive finished homework._ I go out and play for a while?-No, Im afraid not. I have some other exercises for you.回答 回答mustmust开头的一般疑问句开头的一般疑问句, , 否定回答用否定回答用 needntneednt或或dont have to,dont have to,表示表示“ “不必不必“没有没有 必要必要“ “ mustnt,mustnt,因为因为mustntmustnt表示禁止或不许表示禁止或不许, ,意思意思是是“ “决不许决不许“ “的意思的意思. .cancanmustmustneedntneednt MayMaycantcant5.-Must I finish reading the book today?-No. You _ to if you have something else to do.6. You _ playplay football in the busy street. It is too dangerous. 7. You _ to buy an English dictionary. It is useful to you.dont have dont have mustntmustntneedneedl情态动词can/could表示“能力”nCan用来表示现在的 能力nCould 用来表示过去的能力nAttention:be able to: 能；能够比较can 和be able to 1.两者都可以用来表示能力。 2.can只有现在时(Can)和过去时 (could)，而be able to可用于多种时态。 can与be able to；不能重复使用 practicevI _ come back in a few months.vHe _ get there before dark. vHe _ finish the work today.will be able to isnt able tocan/ is able to1. you speak Japanese? (can,cant) Can Yes, I ./No, I .can cant 2. you play the piano last year?./No,I (could,couldnt) Yes,ICouldcould couldnt3. you ride a horse? (can, cant)CanYes, I ./No, I . can cant4. you ride a bicycle when you were young? (could ,couldnt)CouldYes, I ./No, I . could couldntPractice5.The boy_ answer this kind of hard questions one year ago. 6. _she ride when she was three years old? 7. _you mend my car? I_ not start it. 8. I have my own room in my house, so I_do what I want in it. 9._you play the piano when you were eight?couldcouldCouldCouldCanCancancancancan CouldCould情态动词can/could表示“可能性”Fire can be dangerous if we are not careful.Anything could happen to her at that moment.can /could都可以用来表示 “现在的可能性”，但could的可能性要小一些；could 还可以用来表示 “过去的可能性”practice 1. We are so busy that we _ finish the task before tomorrow. 2. I forgot my key. I _open thedoor just now.3. The sun is shining. It _a nice day today.4. School finishes at 4 p.m. The bus leaves at 4.10 p.m. So we _take the bus. cantcouldntcan be can5.Who is the man over there? Is it Mr Li? -No, it _be him. Mr Li is much taller. 6.I _ use the computer last year. I think it was too difficult for me at that time. 7.I want to row a boat but I_. 8. -Listen! Someone is singing in the next room. Whos it ? -I am not sure. It _ be Milliecant couldntcantcould情态动词can/could/may/might 表 示 “请求；许可”nCan I borrow your boots, Tom?nCould I go there tomorrow, Mum?Can is used with friends. ( Informal )Could is used with teachers, adults and strangers. ( Formal )Yes , you can.Yes , you can.nMay I use your computer, Mr Wu?nMight I use your computer, Mr Wu?May is used in the formal situation. ( Formal and polite )Might is very polite and rarely used. ( Very formal )Yes ,you Yes ,you may/can.may/can.情态动词 shall, should, must提建议1.我们谈谈好吗？ _ we talk?2.下一步我们该怎么做？ What _ we do next ? 3. 你必须先买票才能进影院。You _ buy a ticket before you enter the cinema. ShallShallshouldshould用用should should 比比 must must 表表 示更客气示更客气 mustmust用must, mustnt, ought to, ought not to, should, shouldnt 填空1.You _ be polite to the otherpeople. 2. They _ be back by now. 3. You dont look well. You _ goto see the doctor. 4. You _ walk on the grass. 5. You _ smoke so much. 6. What _ we do now?mustmustshouldshould ought toought tomustntmustnt ought not toought not tomustntmustnt shouldshouldought to do表示 “应该”= should We ought to help each other in our study.You ought not to write so carelessly.We should help each oth