1、Unit 3 Could you please clean your room?,2.情态动词could表示委婉地请求许可。 Could I.?意为“我可以吗?”,表示请求对方允许自己做某事。 肯定回答为“Yes,you can./Sure./Of course.”。 否定回答为“Sorry./Im afraid not./Im sorry you cant.”。例如: Could I use your computer?我能用一下你的电脑吗? Sorry.Im working on it.对不起。我正在用。 3.情态动词could作为can的过去式时,不表示委婉语气,而表示过去的能力或可能性
2、,对其一般疑问句的回答仍可用could。例如: The boy could read when he was five years old.这个男孩5岁时就能看书了。,( D )4.Could I go out with Jack tonight? .You have to stay home. A.Yes,you could B.Yes,you can C.Sorry,you can D.No,you cant ( C )5.Could I invite my friends to the party on Saturday,Mom? Of course you .That sounds l
3、ike fun. A.may B.could C.can D.must .用can或could的适当形式填空,每空一词 1.He is sad he cant run any more because of his illness. 2.Could he wash his clothes by himself when he was young? Yes,he could . 3.The little girl couldnt walk when she was two years old. 4.Could I ask you some questions? Yes,you can .,.根据
4、汉语意思完成句子,每空一词 1.你能把电视关上吗?Could you please turn off the TV? 2.我今晚可以在外面待到9点吗?Could I stay out until 9:00 tonight? 3.我今晚能出去和朋友散步吗? 当然,那应该没问题。 Could I go out for a walk with my friends this evening? Sure ,that should be OK.,4.你能把书递给我吗? 当然。 Could you pass me the book? Yes, sure . 5.我可以借你的电脑吗? 对不起。我不能把电脑借给你。 Could I borrow your computer? Sorry.I cant lend it to you.,
