情態(tài)動詞再掌控

1、 -by蘿卜老師任厚權Outlinecancouldbe able tomaymightbe allowed tomust-have toshallshouldbe supposed to/ought towillwouldbe going toHe must drink a lot of milk.ØØ1You must wear a seat belt while driving.Why isnt John in class?He must be sick.A:I wonder where Tom is.B:He may/might/could be in the li

2、brary.Excuse me, but I have to sneeze.B: He is sick.He must be sick.He may be sick.Look at that house!Those eo le must have a lot of mone .ppyI must inish homework.fLook at that house!Those people have to a lot of money.A: Why isnt John in class.2He could/might be sick. A: The restaurant is always e

3、mpty.B: It isn t good.It cant/couldnt be good.It may not be good.It might not be good.1.在否定推測中沒有_，而_常用于表示“命令別人不要做什么”，2._表推測時不能用于肯定句，只用在否定和疑問句中 You must be joking. You cant be serious.3.could和might不表示對過去的推測.cant，不過will和should可以用來表示對現(xiàn)在的推測，其肯定程度等同于must.Ring his home number.Hell be at home now.=He must

4、be at home now.Someone is knocking at the door.Thatll be the postman.A: This should be State Street up here.B: Its not. I think you should have turned left at thelast intersection.A: Hey, you! Open this door!B: Its locked. Want we get the key?A: Yeah. Get it. Fast!3A: Excuse me, would you please ope

5、n this door?Can/Could I ?與May/Might I ?的區(qū)別B: Im afraid its locked. Shall I get a key?May/Could I? 表示較正式、很禮貌地提出請求。A: Please, if you wouldnt mind, as quickly as you can.May I have your name, please?Could I have two tickets, please?can/could和may/might，表示“請求對方允許我們做某事”Can/Could I ?May/Might I ?Could I se

6、e your driving license?B: Sure, Michael. Please sit down.Can/Could I ?與May/Might I ?的區(qū)別Can I ?是非正式的請求允許，一般用于說話人與對方相當熟悉的情況下A: Hi, Jenny. Can I join you?我能坐在你這嗎？Can/Could I ?與May/Might I ?的區(qū)別Might I? 顯得過于正式和客氣，所以一般很少用。Can I use your pen?4 “請求對方為我們做某事”Would you please open this door?Could you put out your cigarette, please?I will 表示意愿Will you?you may表示許可May I ?you can/could表示許可Could/Can I ?I can/couldCould/Can you ?Could you do?Could you please do?Would you do?Could you mind doing?Would you be good/kind enough