Unit 4 Don't eat in class.知识点讲义 2022-2023学年人教_百度...
1.Can (1)表能力:He can speak English. “他会说英语。” (2)表许可:You can play for an hour. “你可以玩一个小时。” (3)表请求:Can you help me “你能帮我吗?” 2.May (1)表许可,比can更委婉:May I have a look “我可以看一看吗?” (2)表可能性,意为“也许”:I may be late....