3.3【重点语法】-2021-2022学年八年级英语下册链接教材精准变式练（人教版）

Unit 3 Could you please clean your room? ( 教材 重点语法 知识链接 及典例解读 ) 情态动词could的用法 【教材原句】 ①Could you please take out the rubbish?你可以倒垃圾吗？ ②Could I go out for dinner with my friends tonight?今晚我可以和朋友们出去吃晚饭吗？ 情态动词could 构成的问句用于向对方委婉地提出请求或征求对方的许可，语气比can委婉，但不 表示过去，答语没有固定形式，符合语境即可。 1.委婉地请求他人可用“Could you do...?”“Could you please do...?”提问，若对方同意请求可以说“Certainly./Of course./With pleasure./No problem./Yes./Sure.”；若对方不同意请求可以说“No,I can't./Sorry,I can't.”。 2. 委婉地请求别人允许自己做某事可用“CouldI do...?”提问. 若对方同意，可以说“Yes,you can./Certainly./Sure.”；若对方不同意，可以说“No,you can't./Sorry,I'm afraid you can't.”。注意回答中用can,而不是could. 典例 ①－Could you please help me do the dishes? 一 I cut my finger and I'm trying not to get it wet. A.Yes,sure B.Sorry,I can't C.Yes,here you are 【解析】空后提到“我”划伤了手指，正努力不让它沾水，由此可知空处表示不能帮忙洗碗，为否定回答。 故选B项。 【答案】B ② you please speak a little louder? I can't hear you very well. A.Could B.May C.Must D.Should 【解析】分析句子结构可知空处所在句为一般疑问句，而且句子中有please,表示委婉请求，因此选择情态 动词Could. 【答案】A 一、单项选择 1．—Could you please help me fold the clothes? —Sure, I ________. I ________ fold my own T-shirts at the age of four. A．can; could B．could; could C．can; can D．could; can 2．— Could you please take out the trash? — ________. A．No, I couldn’t B．Yes, I could C．Sorry, I can’t 3．—Could you please help me take it to the classroom? —________. A．Yes, I could B．Sorry, I couldn’t C．Yes, sure D．No. I don’t 4．— Mum, could I go shopping with you? — Yes, ________. But you have to finish your homework first. A．you can B．you could C．you can’t D．you couldn’t 5．—Could I _________ your bike? —Sorry, I _________ it to Mary. A．lent；borrow B．borrow；lent C．lend；borrowed D．lent；borrowed 6．I could _________ my bed and _________ my clothes. A．make；do B．take；wash C．fold；do D．make；fold 7．— Excuse me, sir! Could you please show me where I can park my car? — ________. I’m a new comer here. A．With pleasure B．No problem C．Quite sorry D．Go ahead 8．— Could you please help me