中考英语复习课件动词分类二.ppt

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1、手，脑，口，眼并用哦手，脑，口，眼并用哦手，脑，口，眼并用哦手，脑，口，眼并用哦动词分类（第二课时）动词分类（第二课时）情态动词情态动词一.情态动词的特征（T/F）1.情态动词能单独作谓语。（）2.情态动词无人称和数的变化.（）We must stay here today.He must stay here today.例外：He has to walk home.3.有些情态动词的过去时与其原形相同，有些与原形不同.()She said she could sing this song when she was five.She said she must finish washing t

2、he dishes before the boss came back.4.情态动词后接动词原形。（）She may lose her way.5.情态动词具有助动词作用，可用来构成疑问句，否定句及用于简明答语。()Can you sing an English song?Yes,I can.But he cant.FFTTT二二.情态动词的用法情态动词的用法1can与与could1）can（1）表示体力或脑力方面的“能力”，也能表示根据客观条件能做某事的“能力”。He can drive._ you jump as far as he did?（2）表示允许,可以：You can go no

3、w.Can I use your bike?（3）表示推测（只用于疑问句及否定句中）：Who_ it be?It cant be true.2）could（1）can的过去式，表示过去有能力及过去的可能性。He couldnt climb up the mountain.The news _ be true.（2）表示客气地请求或委婉地陈述意见。Could you go skating with me tomorrow?Im afraid I couldnt give you an answer tonight.（3）表示惊异、怀疑、不相信等态度 How could he say that?C

4、ancancouldnt2may与与might1）may （1）表示请求、许可、可以 May I use your dictionary?（2）表示推测，猜测，认为某一事情“或许”或“可能”发生。It may rain this afternoon.I _ leave for Hangzhou next week.（3）may用于感叹句中可以表示祝愿或愿望。May you do well!May you have a good time!2)might （1）用作may的过去式。We didnt know that he_ _ our new teacher.（2）主要用于推测（但其可能性比m

5、ay更低）。Im afraid it might snow tomorrow.maymight be3must（1）表示义务，命令或必须。Soldiers must obey orders.We _ _ strict with ourselves.（2）表示肯定的推测：一定 He_ _ at home.（对现在的猜测）I think you must have made a mistake.（对过去的猜测:肯定已经）must bemust be4will与与would1）will（1）表示意愿、决心。此时可用于各种人称。He wont come to see you.他不愿来见你。（表示意愿）

6、I will try my best to catch up with her.我将尽最大努力赶上她。（表示决心）（2）表示请求，此时仅限于“Will you(please)？”句型中。Will you please buy me an English-Chinese dictionary when you go to the bookstore?2）would（1）will的过去式，表示过去的意愿和决心。They believed that we would help them.（2）用于现在时，表示委婉地提出请求，建议或看法。此时would的用法比will更加委婉。Would you pl

7、ease show me the way to the museum?I _ like to say something about it.would5shall与与should1）shall 征求对方意见或请求，用于第一、三人称。表示“要不要？”、“好吗？”Shall I open the window?Shall the doctor come?2）should（1）should意思是“应该”，表示劝告或建议（=ought to）You should wash your hands before dinner.You should have told us the truth.（应该告诉却

8、没有）表示某件事本应该完成却未完成 6need(dare 用法同need)1）need（情态动词）意思是“需要，必须”，主要用于否定句和关系问句中。You neednt come so early._ I take part in the Party?对比对比：need作实义动词。如：She needs three apples.He _ need to buy so many books.2）The tree needs watering.=The tree needs to be watered.Needdoesnt7.have to“不得不”有时态变化 My brother was ve

9、ry ill,so I had to call the doctor at midnight.8.ought to“应该”。语气比should要强，比must稍弱。You ought to visit us often.Sorry,I ought to leave now.三三.含有情态动词的问句和答语含有情态动词的问句和答语1.May I use your pen?-Yes,of course./Yes,you may.No,you cant/mustnt.2.Must I turn it on?-Yes,you must.No,you neednt./No,you_.3.Need I fi

10、nish my homework at once?-Yes,you must.No,you neednt.dont have to四.含情态动词的被动语态情态动词+be+done:More and more trees must planted in China.Your homework should handed in on time.bebe五五.易混点易混点1.can与与be able to二者都表示“能够”，区别是：can只有现在时和过去式could，而be able to可用于各种时态。如：I can speak English.Ill be able to speak Frenc

11、h in half a year.He hasnt_ _ to finish it on time.been able2.must与与have tomust侧重个人意志和主观上的“必须。”I know I must study hard.have to侧重客观上的“不得不”可用现在时，过去时，将来时。I havent got money with me,so I have to borrow some from my friend.3.cant与与mustnt cant be表否定猜测:He cant be in the office.He is cooking at home.（must b

12、e表肯定猜测：)He must be in the office,because the light is on.(may be可能性更小）mustnt表禁止，不允许:You mustnt play with fire.4.maybe 与与may be:Maybe he is right.Im not sure.He _ _ right.may be动词分类习题一动词分类习题一1-5：DABAA6-10:CABBB11-15:BACAC16-20：DADBC21-25：DBDAC动词分类习题二动词分类习题二1-5：BBAAA6-10：DCBCC11-13：CDBPractice makes perfect.