八年级英语上册 Unit 1 Could you please clean your room？语法（can和could）课件 .ppt

1、Grammar,Do you know these sports?,I could not row a boat at five. Now I can .,row a boat,ride a bike,.could not . now .can.,play badminton,.could not . now .can.,swim/ have a swim,.could not . now .can.,fly a kite/ kites,.could not . now .can.,Using “can”/ “could” to talk about ability we use “can”

2、to say that we are able to do something now. we use “could” to say that we were able to do something in the past.,Grammar,e.g. I can (cannot /cant /can not ) swim. What about you? He could (couldnt /could not) dance in the past. What about you ?,What can they do ?/ What could they not do?,Last year,

3、 Sandy _.Now she _. Simon.,Ask and answer the questions,Can Sandy row a boat now? Yes, she can Could Sandy row a boat last year? No, she couldnt.,2 “can “ “could “ possibility,When we want to express something is possible, we use can/could can/could - present (the possibility: cancould),2 “can “ “co

4、uld “ - possibility,注意,当委婉表达 “请求” “要求”时，用could。 而回答时，肯定用can.否定语气一般要婉转，有时可说明不能的原因。如： -Could you send this letter for me? -Yes, I can./sorry, Im busy now.,can,can not,could not,could,can not,Take turns to ask and answer questions using “can” or “could”. Try to make dialogues in pairs. 1._ you speak Ja

5、panese ? 2._ you play the piano last year? 3._ you cook? 4._ you use a computer when you were 3? 5._ you ride a bicycle when you were very younger?,Can,Could,Can,Could,Could,Homework:,1 Recite new phrases. 2 Learn to use “can/could “ to show “ability“/ “possibility“. 3 Pay attention to the sentence change.,