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一、CAN1.1 表示有能力： Sam can play the guitar. Can Howard sing? He can't (cannot) understand German.1.2 表示许可： Can I park my car here? No, you can't, it is a no parking zone. Can I go to the theatre with Zhang?1.3 表示可能： A car can be a useful means of transport or a dangerous weapon. She can be very hard to understand sometimes. We can live life with a positive or a negative attitude.1.4 在否定或疑问时，有"何至于"，"不可能"之意： He cannot be a cruel man. 他不可能是一个冷酷的人。 Can they have said such a thing? 他们何至于说出这样的话？二、COULD2.1 作为can 的过去式： She couldn't (could not) come to dinner last night. They could walk faster when they were younger. Sam could play the piano when he was a boy.2.2 客气请求： Could you tell me the time, please? Could you help me, please? Could I have a coffee, please? Could we come and visit you this evening?2.3 could not help-ing, could not but 有"不禁"，"忍不住"之意： We could not but laugh. 我们忍不住发笑了。 We could not help laughing. 我们不禁笑了起来。谈起助动词感到真有点枯燥，可是它们在英文里作用可大呢。希望大家一起学习，一起进步。再见。 |
