,动词 verb,连系动词+adj. /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。 连系动词可具体分为三类： 1、表示状态的动词be 2、表示“感觉”的词 3、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：,can: 能； 能够may: 可以must: 必须；应该need: 不必,practice,1. 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must开头的一般疑问句, 否定回答用neednt或dont have to,表示“不必“没有必要“ mustnt,因为mustnt表示禁止或不许,意思是“决不许“的意思 .,can,must,neednt,May,cant,5.-Must I finish reading the book today?-No. You _ to if you have something else to do. 6. You _ play football in the busy street. It is too dangerous. 7. You _ to buy an English dictionary. It is useful to you.,dont have,mustnt,need,情态动词can/could表示“能力”,Can用来表示现在的 能力 Could 用来表示过去的能力,Attention: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,practice,I _ come back in a few months. He _ get there before dark. He _ finish the work today.,will be able to,isnt able to,can/ is able to,1. you speak Japanese? (can,cant),Can,Yes, I ./No, I .,can,cant,2. you play the piano last year?./No,I (could,couldnt),Yes,I,Could,could,couldnt,3. you ride a horse? (can, cant),Can,Yes, I ./No, I .,can,cant,4. you ride a bicycle when you were young? (could ,couldnt),Could,Yes, I ./No, I .,could,couldnt,Practice,5.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?,could,Could,Can,can,can,Could,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.,cant,couldnt,can be,can,5.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 Millie,cant,couldnt,cant,could,情态动词can/could/may/might 表示 “请求；许可”,Can I borrow your boots, Tom?Could I go there tomorrow, Mum?,Can is used with friends. ( Informal ),Could is used with teachers, adults and strangers. ( Formal ),Yes , you can.,May I use your computer, Mr Wu?Might 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 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.,Shall,should,用should 比 must 表示更客气,must,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?,must,should,ought to,mustnt,ought not to,mustnt,should,ought 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 other in our study.,You should not write so carelessly.,neednt + do意为 “不必”,We neednt hurry. Must I come? Yes, you must. / No, you neednt.Must she finish the homework first? No, she neednt.,need to do (need为实义动词),Mr Jiang no longer needed to do housework because he had a robot. You need to read the instructions again. Does he need to know it? You dont need to do it yourself.,dare做情态动词/行为动词 , 表示”敢”,I dare go home alone. Dare you go home alone? I darent go out alone at night.,dare to do (dare为行为动词),I dare to go out alone at night.,The girl didnt dare to go home yesterday.,Nobody dares to suspect him.,非谓语动词 (do, to do, doing),动词不定式 to do的基本形式,to do (肯定形式) not to do (否定形式),基础检测：,Would you like _(have) something to eat? They preferred _ (take) part in the evening party at last.Dont forget _(turn) off the lights before you go out.The boy wants _ (play) basketball every day. 5.They warned us_ (not eat) too much in the evening.,