Unit 5 It must belong to Carla.LEARN TO MAKE INFERENCE1.能用來表示推測的情態(tài)動詞能用來表示推測的情態(tài)動詞 must, may, might, can, could, cant 確信程度確信程度must may might can could2.must (100%), may, might, can, could (20%-80%)3.can表表 “可能可能”常用于疑問句和否定句。常用于疑問句和否定句。 could則不受影響。則不受影響。 疑問句中表示疑問句中表示 “可能可能”用用can, 而不用而不用may。4. 表表 “不可能不可能”常用常用 can notcould not, may not, might notWho is she? must, may, might, can, could Who is he?must, may, might, can, couldWhose skirt is this?It must belong to Jane.(=It must be Janes.)JaneMikeBecause she is a girl.(Because boys dont wear skirts.)Wu NingWhose notebook is this?It must be Wu Nings. It has her name on itWhose guitar is this? XiaomingFredIt might belong to Fred. He likes music. Can this T-shirt beJohns?It cant be Johns. Its much too small for himJohn 可能可能What can the two boys be watching?You can go and ask them, but they may not answer you. 可能不可能不表示推測的情態(tài)動詞小結(jié)表示推測的情態(tài)動詞小結(jié)1.can用在否定句或疑問句中時表示說話人的用在否定句或疑問句中時表示說話人的“推推測測”和和“不確定不確定”例如：例如：1.Where can he be? 2.It may be the headmaster. No, it cant be him. He has gone to Shanghai. could 也有懷疑和不確定的意思（在否定句中和疑也有懷疑和不確定的意思（在否定句中和疑問句中）問句中）例如：例如：1. At the time, we thought the story could be true. 2. He couldnt be a bad man. 2.may 表示說話人的猜測，認為某一事情表示說話人的猜測，認為某一事情“或許或許”或或“可能可能”發(fā)生。發(fā)生。 There may be a terrible storm in the following few days. might 表示推測時，不表示時態(tài)。只表示可能性更小。表示推測時，不表示時態(tài)。只表示可能性更小。 He might be at home.3. must用在肯定句中表示較有把握的推測，用在肯定句中表示較有把握的推測，意為意為“一定一定”。 He must be working at home. must 表示對已發(fā)生的事情的推測時，表示對已發(fā)生的事情的推測時， 要接完成式。要接完成式。 The road is wet. It must have rained last night. SOME EXERCISES 1. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have been 2. Mary _ be in Paris. I saw her in town only a few minutes ago. A. mustnt B. shouldnt C. cant D. may not 3. Peter _ come with us tonight, but he isnt very sure yet. A. must B. may C. can D. will 4.I thought you _ like something to read, so I have brought you some books. A. may B. might C. could D. must翻譯：翻譯： 1.這本法語字典肯定是屬于他的。他是學(xué)這本法語字典肯定是屬于他的。他是學(xué) 習(xí)法語的。習(xí)法語的。 2. 這是誰的兒子？可能是程先生的。這是誰的兒子？可能是程先生的。 他他 們彼此長得像。們彼此長得像。 3. 我媽媽可能正在做飯。我媽媽可能正在做飯。 4. Tony不可能在上體育課。他還在住院。不可能在上體育課。他還在住院。 5. 我太累了。因為我干了太多的家務(wù)。我太累了。因為我干了太多的家務(wù)。1.The French dictionary must belong to him. He studies French.2. Whose son is this ? He might/may be Mr. Chengs. They look like each other.3. My mother could/might be cooking.4.Tony cant be having classes. He is still in hospital.5. I was much too tired because I did too much housework.