七年级英语下册Unit5GrammarI.pptx

7B Unit 5 Grammar 1Do 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.A.Using“can”/“could”to talk about abilitywe use“can”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.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?SandySimonMillie Daniel&PeterAmylast yearthis yearLast year,Sandy _.Now she _.Simon.SandySimonMillie Daniel&PeterAmylast yearthis yearAsk and answer the questionsCan Sandy row a boat now?Yes,she canCould Sandy row a boat last year?No,she couldnt.2 can could possiblityWhen we want to express something is possible,we use can/couldcan/could-present (the possibility:cancould)2 can could -possibility注意注意当委婉表达“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.Exercises:Fill in them withcould/could not can/can not.1 It is snowing in Canada.We _go skiing there.2 The swomming pooi does not open today.We _ go swimming.3 We _ fly kites yesterrday because it rained.4 We _ play badminton last friday because we had our badminton rackets.5 We _ play football beause Simon forget to bring a football.cancan notcould not couldcan notTake turns to ask and answer questions using “can”or“could”.Try to make dialogues in pairs.1._ you speak Japanese?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?6._ you understand English TV programmes in 2000?CanCouldCanCouldCouldCouldHomework:1 Recite new phrases.2 Learn to usecan/could to show ability/possibility.3 Pay attention to the sentence change.