牛津译林版七年级英语下册课件.ppt
Unit 7 AbilitiesGrammar1It _ride a bike now,But it _ ride a bike last year.Task 1.To talk about abilities.Step 1.Free talkcancouldntShe _ row a boat.But she _ row a boat in 2014.cancouldnt ride a bikeNow the girl can.but she couldnt.2 years ago.play badmintonNow .can.could not/couldnt.in the past.swimNow .can.could not/couldnt.last month.fly a kite/kitesNow .can.could not/couldnt.last week.cancould用于一般现在与将来时用于一般现在与将来时用于一般过去时用于一般过去时Using“can”/“could”to talk about ability.Step 2 .Conclusion We use“can”to talk about present ability.We use“could”to talk about ability in the past.Step 3.Make a dialogue A:I can(cannot/cant/can not)swim.What about you?B:I can.But I couldnt last year.Step 4.Real time practice 1._(can)Simon fly a kite before?No,he_.2.The man _(can)write with his left hand.3.Mrs Sun _(can not)get out because she hurt her leg.4.What _ I do for you?(can)5.The man _ swim across the river when he was young.(can)6._(can)I smoke here?No,you _.Look at the sign.1.-Can I borrow your bike,Millie?-Yes,you can.Here you are.2.-Could I smoke here?-Sorry,Im afraid you cant.3.-May I use your mobile phone?-Of course you may.Step 5.Discuss and find out the differenceTask 2.To ask for permission.Step 1.Learn by yourselves.1.can 与与 could can 常用于口语中，表示非正式的请求，常用于口语中，表示非正式的请求，请求对象一般是家人或朋友。请求对象一般是家人或朋友。e.g.Can I borrow your bike,Simon?西蒙西蒙,我可以借一下你的自行车吗？我可以借一下你的自行车吗？Of course.当然可以。当然可以。Can I have some milk,Mum?妈妈，我可以喝点牛奶吗？妈妈，我可以喝点牛奶吗？Yes,you can.好的。好的。could是是can的过去式。在口语中，的过去式。在口语中，could常用来代替常用来代替can向对方更委婉地提出请向对方更委婉地提出请求，用法上比求，用法上比can正式，可以用于向老正式，可以用于向老师或长辈提出请求，这时师或长辈提出请求，这时could不表示不表示过去，回答一般还是用过去，回答一般还是用can。e.g.Could I use your computer,please?请问，我可以用一下你的电脑吗？请问，我可以用一下你的电脑吗？Yes,you can.可以。可以。Could I hand in our homework later,Mr Lin?林老师，我可以稍后交作业吗？林老师，我可以稍后交作业吗？No,you cant.不，不行。不，不行。2.may may也可以用来征求对方意见，意也可以用来征求对方意见，意为为“可以可以”，相当于，相当于could，用法也，用法也比比can更正式，更礼貌，一般用于更正式，更礼貌，一般用于向陌生人或所尊敬的人请求许可。向陌生人或所尊敬的人请求许可。e.g.May I ask you a question?我可以问你一个问题吗？我可以问你一个问题吗？Yes,please.可以，请问。可以，请问。May I come in,Mr Wu?吴老师，我可以进来吗？吴老师，我可以进来吗？No,you cant.不行。不行。Step 2.practice1.Dick,_ I use your e-dictionary?-Yes,please._ you give it to Mike after you use it?A.will;Would B.may;Might C.can;Could D.shall;Should 2.Could I have some bottles of orange?Yes,you _.A.do B.could C.would D.can3.May I go swimming alone this afternoon,Dad?No,you _.It is dangerous.A.may not B.mustnt C.neednt D.dont cDB4._ I visit Jack on Sunday?Yes,you _.A.Must;can B.May;may C.Need;need D.May;need.5._ you turn down（调小）（调小）your radio,please?Yes,I can A.May B.Need C.Must D.Can 6._ I borrow your history book?Sure.Here you are.A.May B.Must C.Need D.Will BDATask 3.Production 1.Mrs Li is 80 years old,so she _ walk fast.A.could B.couldnt C.cant D.can2.-_ Lucy and Lily sing this song last year?-Yes,they _.A.Can,can B.Could,could C.Could,couldnt D.Can cant3.My cousin is good at sports.He _ very high.A.can jumps B.cant jump C.cans jump D.can jumpCBD4.Mrs Smith _ be at home now.She flew to Hainan this morning.A.mustnt B.cant C.May not D.neednt 5.Look out!The knife is very sharp.You _ cut your finger.A.Must B.should C.may D.need 6.Could you give me a hand?-_.A.All right B.Not at all C.No problem D.Yes,I can BCC7._ Jim speak English?No,he _.8._ you play the piano at the age of 4?Yes,I _.9._ you use computer last year?Yes,I _.10._ she play basketball 5 years ago?No,she _.Because she _ run fast.11._ you ride a horse?I want to do that but I _.CancantCouldcouldCouldcouldCouldcouldntcouldntCancant
