高一英语 Festivals around the world课件
- 格式:ppt
- 大小:877.00 KB
- 文档页数:28
can and couM ma)如2如zmust and cant5u精品课件He can take part in the Olympics. He may win the golden medal・To win it, he must run fastenks5u精品课件He can …He may/might... He must...Can Could (Gpuhal ypu op找竹七白£ dag ph?刃伞凸?]■ So he can carry heavy books, ability■ He couldn't open the door by himself, ability ■ Could you open the door, please? requestcan could:1)表示能力(ability),指有能力做某事,意为“能够”。
例如:注意:表示现在,将来“能够”可用be able to替换。
表示过去“能够”并成功了只能用was/ were able to,不能用could o例如My grandma is over eighty, but she can/ is able to read without glasses.We can/ will be able to talk about the matter later.I talked with her for a long time, and at last Iwas able to make her believe me•(不能用could)ks5u精品课件2)表示请求(request)或(permission)。
意为“可否”、“可以”。
Could比can 更有礼貌,在此不是can的过去式。
Can you wait a moment please?Liz, can you do me a favor?Excuse me, could you tell me the way to thestation?I wonder if you could help me. (request)Could I use your phone?-—Yes, of course. You can.Do you think I could borrow your bike?(permission)3)表示可能性(possibility )a. can表示泛指的"可能”,并非说话者主观认为的可能性,即并非说话者的主观猜测OAccident can happen to any drunken drivenb・表示说话者主观猜测,只能用与否定句或疑问句中。