Unit 7 Grammar 课件2023-2024学年牛津译林版英语七年级下册

Unit 7 Abilities Grammar Please translate the phrases in the text. save … from … next door at that moment put out the fire be at home alone 1. 从……中救出来 2. 独自在家 3. 隔壁 4. 在那个时候 5. 扑灭火 6 冲进…… 7. 听到某人 正在大喊 8. 79岁的孙奶奶 9. 住院 10 .小心火 rush into hear someone shouting the 79-year-old Mrs Sun be in hospital be careful with fire ride a horse play tennis ski skate Do you know these sports? The girl could not ride a horse at five , but now she can. ride a horse The girl … not… at five , but now … play tennis The man … not… in 1990 ,but now … The man could not play tennis in 1990 , but now he can. ski The girl … not… last year , but now … The girl could not ski last year, but now she can. skate The woman … not… when she was young , but now … The woman could not skate when she was young , but now she can. can could 表示现在的能力 表示过去的能力 can/could表示能力(意为“能,会”) 注意：我们也可以用be able to 来表示能力，be动词的形式根据句子所用时态变化。 Take turns to ask and answer questions using “can” or “could”. 1.______ you speak English ? 2._______ you play the piano last year? 3._______ you cook? 4._______ you use a computer when you were 3? 5._______ you ride a bike when you were very young? 6._______ you swim in 2000? Can Could Can Could Could Could can can 常用于口语中，表示非正式的请求，请求对象一般是同学或朋友。 e.g. ---Simon ,我可以借你的自行车吗？ ---当然可以。 — ______I borrow your bike, Simon? — Of course. Can — Could I have some milk, Mum? — Yes, you can. 2.could是can的过去式。 在口语中，could常用来代替can向对方更委婉地提出请求，用法上比can正式，可以用于向老师或长辈提出请求. 注意：这时could不表示过去， 回答一般还是用can或can’t。 e.g. 刘老师，我可以使用你的电脑吗? 可以. —______ I use your computer, Mr Liu? — Yes, you______. —_______I hand in my homework later, Mr Li? — No, you______. 李老师，我可以迟点再交作业吗？不行。 Could can can’t Could 3. may may相当于could，用法也比can更正式，更礼貌，一般用于向陌生人或所尊敬的人请求许可。 e.g. 我可以问您一个问题吗？ _______I ask you a question? 吴老师，我可以进来吗？ _______I come in, Mr Wu? May May can could 用于向同学，朋友等请求允许 用于向老师，父母等请求允许 can/could/may表