人教版七年级英语下册Unit1 Can you play the guitar Section A 教学课件(共58张PPT).ppt

can的用法 can是情态动词，意思是“能; 可以”，不能独立作谓语，只能与其他动词(原形)一起构成谓语，且没有人称和数的变化。 1. 表示能力 I can speak English.???? 我会讲英语。 2. can作为情态动词, 可以表示请求或允许 。 Can I use your pencil????? 我可以用一下你的铅笔吗？ You can sit down.???? 你可以坐下。 3. can也可以用于推测, 表示可能性 。 Tom is in the classroom. He can’t be here.???? 汤姆在教室, 他不可能在这儿。 句型： 1. 表示能力时 变否定句直接在can后加上not即可。can与not可缩写成can’t或cannot。 Emma can play the piano. → Emma can’t / cannot play the piano. 一般疑问句 变一般疑问句时，把can直接移到主语前即可。 I can see a computer on the table. →Can you see a computer on the table? 注意： 如果主语是第一人称，变疑问句时通常要改为第二人称。肯定回答用“Yes, 主语+ can.”；否定回答用“No, 主语+ can’t.”。 2. 表示请求或允许时，在口语中常用OK，sure或certainly等作肯定回答；用sorry等作否定回答。 -- Can I borrow your pen, please? -- Certainly. He can’t write_______ read. She can sing ______ play the piano. He likes playing basketball______ he doesn’t like playing football. Which watch do you like, the big one_____ the small one？ or and but or 总结提高 A computer ______ think for itself, it must be told what to do. A. can’t B. couldn’t C. may not D. might not 2. –Who is the man over there? Is it Mr. Li? --No, it ______ be him. Mr. Li is much taller. A. mustn’t B. may not C. can’t D. needn’t A C Homework Do the other exercises in this part. * chess club English club basketball club 1 3 4 5 _______ club English _____ Club _____ Club _____ Club _____ Club swimming music chess art 2 I want to join ... What club does he/she want to join? He/She wants to join the basketball club. 2a Listen to these two conversations and circle the clubs you hear. English club art club music club chess club swimming club 2b Listen again. Complete the sentences. Lisa wants to join the ______ club, but she can’t play _________. 2. Bob wants to join the ______ club. He likes to speak _________. 3. Mary likes music. She can ______ and ______. Bob likes music, too. They want to join the_____ club. chess chess English English sing dance music 协作交流 2c GROUP WORK A: What