必须修读三英语人教版Learningaboutlanguage.ppt

3) might/may have done, 表示对过去发生的动作 进行可能性推测。 他可能去医务室了。 He may have gone to the clinic. 他可能已经从报纸上知道这个消息了。 He might have read about the news in the newspaper. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Will /Would you do…? 表请求, 意志, 愿望, 决心。 would 表过去反复发生的动作或某种倾向 “总是，总要” used to 表过去常常(现在已没有这种习惯) “过去常常” used to 可与状态动词连用, would不可以 e.g. He used to be a quiet boy. (　　) He would be a quiet boy. (　　 ) √ × 4. will/would Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 1) 表示请求、建议等, would比will委婉 客气。 　Would you pass me the book? 2) 表示意志、愿望和决心。如： 　I will never do that again. 　They asked if we would do that again. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 5. shall, should 1) 在一、三人称的疑问句中, shall用来 询问对方的意愿。如： Shall we begin our lesson? When shall he be able to leave the hospital? 2) 用于二、三人称的陈述句中, 表说话人 命令、警告、允诺等口吻。如： Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. He shall have the book when I finish reading. You shall do as I say. 3) should表示劝告、建议、命令, 其同义 词是 ought to; 在疑问句中, 通常用 should 代替 ought to。如： You should go to class right away. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 4) should/ought to have done 过去应该 做的事情而没有做, 表责备。如： — You should have written with a pen, not a pencil. — Yes, I know I ought to have, but I had no pen to write with. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 5) should / ought not to have done 过去不应该做的事情却做了, 表责备、 悔恨情感。如： I was really anxious about you. You shouldn’t have left home without a word. Evaluation only. Created with Aspose.Slide