英语七年级下册Grammar图片课件ppt

这是一份英语七年级下册Grammar图片课件ppt，
GrammarUnit 7 Abilities学习目标1. 了解can could may 的用法2. 会使用can could may3. 会使用感叹句cancould用于一般现在与将来时用于一般过去时can/could表示能力(意为“能,会”)Can 1. 能（表能力）， 2.可以，（许可）， 3.可能（表可能性）could 1.can的过去式）， 2.可能,许可（比can更委婉，可能性更小） may 1.许可，可能 2.比can，could更正式，客气Can语气越来越委婉 可能性越来越来小couldmay回答时用can，表示肯定的语气 Can, could 和may都可以表示许可，意为“可以”；Could 比can更有礼貌，更委婉地提出请求，想法,（此时的could不表示过去，回答时肯定用can, 否定用can’t）。May是正式场合，用于对长辈，老师或陌生人。 I can ____ _ ____. ride a bikeWhat can I do?I can ____ __________. play basketballWhat can I do?He ___ ____ the cello (大提琴).can play What can he do?I can __ ________ every day. do exercisesWhat can I do?__ ___ fly a kite on the beach.What ____ I do?canI canHe can swim.He could swim last year.He can fly a kite.He could fly a kite last year.He can ride a bike.He could ride a bike last year.She can row a boat.She could row a boat last year.He can play tennis.But he could play it last year.She can cook.She could cook last year.句型肯定句：主语+ can /could + do原形否定句： 主语+ can/ could not + do 原形疑问句：can/ could+主语 + do 原形？ yes, sb can/ could no, sb can’t/ couldn’t 如果表达不能做某事，可以在can后直接加not，成为cannot，也可以缩写为can’t。 Can not 如：I cannot (can’t) play football.can没有人称和数的变化。不论表示谁能(不能)做某事，都是用can (not)。I can play the guitar but Tom ________ chess ____he _________ it very well.can playbutcan’t playI can’t play it very well.否定句He ________________ but he ____________________.She ________ ____ she__________________.can speak Englishcan’t speak it very wellcan paintbutcan’t paint very well 如果是询问某人能不能做某事，则要使用can的疑问形式，即将can提至句首。如： — Can you speak Chinese? — Yes, I can. / No, I can’t.一般疑问句A: Can she play the violin?B: ____, she can. A: ____ she ______?B: Yes, ________. Candanceshe canYesA: ____ he play the drums?B: No, ________, but he can play the guitar.Canhe can’tA: ____ she play the piano?B: ____________, but she _________.Cancan danceNo, she can’tCould的用法It can ride a bike.It couldn’t ride a bike last year.She ______ row a boat.She ________ row a boat last year.cancouldn’t ride a bikeI ______ ride a bike now. I _____________ride a bike 2 years ago .could not/couldn’tcanTake turns to ask and answer questions using “can” or “could”.Try to make dialogues in pairs.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 bicycle when you were very young?6._______ you understand English TV programmes in 2000?CanCouldCanCouldCouldCouldMake dialogues using the following pattern.S1: Can you ride a bike?S2: Yes, I can. / No, I can’t.S1: Could you ride a bike five years ago?S2: Yes, I could. / No, I couldn’t.Can he/she fly a kite?Yes, he/she can.No, he/she cannot/can’t.Can 1. 能（表能力）， 2.可以，（许可）， 3.可能（表可能性）could 1.can的过去式）， 2.可能（比can更委婉，可能性更小） may 1.许可， 2.比can，could更正式，客气Can语气越来越委婉 肯定回答用can 可能性越来越来小 couldmay1. Daniel: _______ I open the door, Mr Wu? Mr Wu: yes,you _____2. Tom:Mum , ________ I have an apple? Mum: No, you _____It _____ rain, because it is sunny now.It _____ rain, because it is cloudy now. MaycanmayCan’tmaycan其构成是： 肯定句: 主 + can + 动词原形 否定句: 主 + can’t + 动词原形一般疑问句: Can + 主 + 动词原形？ 肯定回答: 否定回答:特殊疑问句: 特殊疑问词 + 一般疑问句？Yes, 主 + can.No, 主 + can’t.现在我们来总结一下：eg:I can dance. 我会跳舞。I can’t dance. 我不会跳舞。Can you dance? 你会跳舞吗？What can you do? 你会干什么？Yes, I can. 是的，我会。No, I can’t. 不，我不会。Can you understand? “can” “could” “may” to ask for permission. “Could” sounds more polite than “can”. May is formal.1. ---Can I borrow your bike, Millie? ---Yes, you can. Here you are.2. ---Could I smoke here? ---Sorry, I’m afraid you can’t.3. ---May I use your mobile phone? ---Of course you may.What/how感叹句的用法会使用what/ how感叹句1.把钥匙忘在教室了2.顺便问一下3.没问题4.看透墙5.用他的眼睛烧东西6.听得很远7.多奇怪啊！8.和光一样快9.多有趣的一个主意!10.多优美的音乐!left the key in the classroomby the wayno problemsee through wallsburn things with his eyeshear things far awayHow strange!run as fast as lightWhat an interesting idea!What nice music! What a big pencil box it is! How big the pencil box is! What beautiful flowers they are!How beautiful the flowers are!The flowers are beautiful.What beautiful flowers they are.How beautiful the flowers are!The cat is lovely.What a lovely cat it is.How lovely the cat is!prettyHow pretty the little girl is!What a pretty girl she is How tall the man is! What a tall man (he is)!Work out the rules:it isthey areit is用what (a/an)或how填空：1._________ exciting music it is!2. _________ happily they are playing!3. _________ amazing film they saw!4. _________ lovely animals they are!5. _________ amazing match it is! WhatHowWhat anWhat What anWhat 与How 大转换1. What a pretty girl she is!_______ _______ the girl is!2. How difficult the questions are!_________ ________ ________ they are.3. How big the factory is!_______ _______ big factory _____ ____! How prettyWhat difficult questions What a it is4.What a clever boy!_______ _______ the boy _______!5. How tall the trees are!_______ tall trees ______ ______!6. What interesting books they are!________ _______ the books ________!7. How funny the girl is!________ a funny girl she is!How cleverareWhat How interestingWhat they areis8. How old the man is!______ _______ old man ______ _____!9. What nice books they are!_____ ______ the books ________!10. How amazing the building is!_____ _____amazing building ____ ____!What anhe isHow niceareWhat anit is小结感叹句通常有what, how引导，表示赞美、惊叹、喜悦等感情。 How + 形容词 + a + 名词 + 陈述语序 How + 形容词或副词 + 陈述语序 What + 名词 + 陈述语序 What + a + 形容词 + 名词 + 陈述语序 What + 形容词 + 复数名词 + 陈述语序 What + 形容词 + 不可数名词 + 陈述语序 How clever a boy he is! How lovely the baby is! What noise they are making! What a clever boy he is! What wonderful ideas (we have)! What cold weather it is! 感叹句的省略形式为： What a clever boy (he is)! Lucy can play the piano. (改为一般疑问句并作肯定回答) ___________________________ ___________________________2. Mike can swim. (改为否定句) ___________________________句型转换Can Lucy play the piano?Yes, she can.Mike can’t swim.3. Can you play chess? (否定回答) ____________.4. They can speak English. (变为否定句) They _____ _____ English.No, I can’tcan’t speak翻译句子1. - 比尔会弹钢琴吗？ - 是的，他会，但是他不会唱歌。2. - 她会唱歌吗？ - 不，她不会，但是她会跳舞。 Can Bill play the piano? Yes, he can, but he can’t sing. Can she sing? No, she can’t, but she can dance.3. 去年他不会划船，但现在他能划得 很好。4. 年轻人能为老年人做很多事情。He couldn’t row a boat last year, but now he can do it well.Young people can do many thingsfor the elderly.5. 我的网球拍 (tennis racket) 坏了， 昨天我就不能打球了。6. 多么勇敢的年轻人啊！7. 太棒了。My tennis racket was broken, so I couldn’t play tennis yesterday. What a brave young man! How wonderful!IV. 单项选择_____ food you've cooked! A. How a nice B. What a nice C. How nice D. What nice 2. _____ terrible weather we've been having these days! A. What B. What a C. How D. How a HomeworkMake sentences with ‘can / could’ ‘What … ! How … !’Thank you!A: I _______ read the article at all. It’s too hard for me. Can you read it?B: Yes, of course. But I ________ read well.A: That’s OK. I _______ do it at all.B: Oh, well, ________ mind. You can learn Maths very well.never can’tcan’tcan’tExercise A: Thank you, but _______ you teach me _______ to read English? B: No __________. Let’s ________ every Friday. A: Great! Thank you very much.can howproblem practise