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7下 Unit7语法归纳：一、 can/could和may的用法例句1.Millie can speak good English.2.The old man could swim across the Yangtze River.3.May I use your mobile phone? Of course you may.Can和could 表示能力（1） can 表示现在的能力，could表示过去的能力。I cant speak French, but I can speak English.She could play the piano when she was only six. (2) can表示能力时，与be able to 意思相同，但can只有现在时和过去时两种时态，而be able to可以用于各种时态。Can，could和may 表示许可或可能性（1） 表示许可时，could比can更委婉，而may更正式一些。Could I smoke here? Sorry, Im afraid you cant. (2) can, could 和may 表示可能性Can表示推测“可能性”时，往往用于否定句或疑问句。Cant 意为“不可能”，语气很肯定。Can用在疑问句中，意为“可能”。He cant be at home because he has gone to Shanghai.Could可用于某事有可能发生或可能是事实。The plane could be delayed by fog.May 表示推测时，可以用于肯定句或否定句，但一般不用于疑问句。 He may not be at home. I think we should take raincoats with us, it may rain.Must 也可以表示肯定地推测。Mr. Li must be in the room, look, the light is on.相关练习：1. Jenny finally got the job because she _ speak English well.A. could B. must C. might D. should2. I forgot to bring my dictionary. Could I use yours?Yes, you _.A. can B. must C. could D. should用can, cant, could, couldnt 或may填空1. _ you play the piano last year? No, I _.2. _ Anna ride a horse now? Yes, she _.3. _ I borrow some money from you? Sorry, you_.句型转换Sandy can row a boat now.(用2 years ago 作时间状语改写句子)Sandy _ _ a boat two years ago.(同义句)Sandy _ _ _ _ a boat two years ago.二，What和How引导的感叹句1. 用来表达喜、怒、哀、乐等强烈感情的句子叫感叹句。感叹句通常用How或What引导。What +a/an +形容词+可数名词单数（+主语+谓语）！What +形容词+可数名词复数（+主语+谓语）！What +形容词+不可数名词（+主语+谓语）！How +形容词/副词（+主语+谓语）!2. 在口语中通常用感叹句的省略形式，也就是省略句子的主语和谓语。3. What 引导的感叹句与How引导的感叹句可互相转换。What a clever boy he is !=How clever the boy is!相关练习：用How 或what补全下面的感叹句1._ a lovely song!2._ nice weather it is!3._ amazing the news is!4. _ fast she runs!5._ tall buildings they are!句型转换：1. The food is very nice. (改成感叹句)_ _ _ it is!_ _ the food is!2. Mike is a careful boy. (改为感叹句)_ _ Mike is!_ _ _ _ Mike is!词组归纳：1. make a call on your mobile 用你的手机打个电话2. by the way顺便问一下，顺便说说（在交谈中打断话题，以插入题外话或问题）拓展：in the way 妨碍，on the way 在路上，in a/one way 在某种程度上， in some ways 在某些方面3. no problem没问题4. leave sth. + 地点(介词短语) 把某物遗留/忘在某地（1）_,do you live with your parents or have a place of your own? I live alone.A. In some ways B. By the way C. On the way D. In the way(2) Could you help me fix the bike? _. Come and get it in half an hour. A. Not at all B. No problem C. Im sorry I cant. D. I hope not.
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