高一英语提高情态动词一、Definition:表示说话人对某一行为的态度和观点。二、常见的情态动词的用法1. can, could, be able to1) Man cannot live without water.We shall be able to finish the work next week.2) A: Could I watch the Olympics ?B: Yes, you can.\ No, you can’t.3) How can he be so rude like this?在疑问句中用 can 表示惊讶，怀疑，不相信的语气。4) 推测（ 用于______句，______问）certaintyYou can’t\couldn’t be tired- you’ve only been working for an hour.（2005 年全国２）Mr. Bush is on time for everything. How can\could it be that he was late for the opening ceremony? (2001’上海春季）5) The World Wide Web is sometimes jokingly called the world Wide Wait because it can be very slow.（2005 渐江）6)We can’t have too many friends.2.may/might1）表示__________ might 比 may 更______A: May I have a look at your photo?B: Yes, you may (can). No, you mustn’t\ can’t. No, you’d better not.2).certainty 推测（用于______句和______句）－Excuse me. Is this the right way to the Summer Palace? －Sorry, I am not sure. But it might be.－Is John coming by train?（2002)－He should, but he may not. He likes driving his car.He may not have finished the work.(__________）He can ’ t have left without saying goodbye to them for he always had good manners.(______）may/might as well do sth. ______________________Now that no one wants to eat the food, you _______ as well throw it into the dustbin.3. must1). permission-Must I clean all the rooms?-Yes, you must. -No, you needn’t\ No, you don’t have to.mustn’t _________；__________You mustn’t speak like that to your mother.You mustn’t miss the good chance.2).must, have to3）must 在疑问句中还表示“硬要，偏要，一定要”John, look at the time. _______ you play the piano at such a late hour?3) 推测...
