人教版八年级英语下册unit3 Grammar Focus-4c（PPT32张）

Unit 3 Could you please clean your room? 3a-Grammar Focus-4c Could I stay out late? Could I use the car? Sorry, you can’t. I have to go to a meeting. Could I get a ride? No, you have a test tomorrow. Yes, you can. Grammar Could you please clean your room? Yes, sure. Could you please do the dishes? Sorry, I can’t. I have to do my homework. Could I go to the movies? Yes, you can. Could I use the car? No, you can’t. I have to go out. could can 的过去时 礼貌的请求 提出建议 推测 I could run fast when I was a child. Could you help me? You could talk to your teacher now. He couldn’t be at the school then. Could you please clean your room? 你能打扫一下你的房间吗？ 在表示请求帮助或请求允许的疑问句中，我们常用could代替can， 以表示礼貌、委婉或不确定的语气，而can 则不具有这些语气。这样用时，不能把could 看作为can 的过去式。 Could you please …? 请你……好吗? 这里的could 不是表示一般的过去式，而是用来表示委婉地提出请求。 Could you please do sth? Yes, I can. All right. “Yes” Sure. No problem. Certain