Whats the rule?Do my homework first when I get home.Whats the rule?I must read a book before I can watch TV.Whats the rule?Play basketball only on weekends.on weekendsWhats the rule?make dinner, every dayI have to help mom make diner every day.Whats the rule?I have to practice the violin for an hour after dinner.after dinner, for an hourWhats the rule?Dont see friends on weekends.see friends, on weekendsDear Dr. Know, _ you help me? Im not happy because there are too many rules at home. Every morning, I _ get up at six oclock. At school, I _ wear a school uniform, and I _ keep my hair short. After school, I _ play with my friends or watch TV because I _ do my homework. I _ relax on weekends either because I _ learn to play the piano. I never have fun, what _ I do? Zhao Pei 3a Complete Zhao Peis letters to Dr. Know using have to / must, can / cant. 1. 明确明确must, have to, can, cant的用法的用法： must强强调主主观上的需要；上的需要； have to强强调客客观上上的需要。的需要。can可以；可以；cant不可以。不可以。2. 先通先通读全文，理解短文大意。全文，理解短文大意。3.理解每句理解每句话的意思，根据的意思，根据语境确定用哪一个境确定用哪一个情情态动词。4.4.寻找句子中有找句子中有标志性的志性的单词。如看到。如看到or，either等等词，可知本句，可知本句应是否定句。是否定句。5. 最后，再通最后，再通读一遍短文，看有没有一遍短文，看有没有错误或不或不通通顺的地方。的地方。Dear Dr. Know, _ you help me? Im not happy because there are too many rules at home. Every morning, I _ get up at six oclock. At school, I _ wear a school uniform, and I _ keep my hair short. After school, I _ play with my friends or watch TV because I _ do my homework. I _ relax on weekends either because I _ learn to play the piano. I never have fun, what _ I do? Zhao Pei have toCanhave tomustCheck the answers.mustcantcantmustcan3b Complete the chart with the rules in your home and school. Check the rules you think are unfair.Things I have to doThings I cant doI cant go out on school nights. I must do the homework first after school.I cant watch TV before I practice the piano.I have to wear the uniform at school.I have to keep my hair short. I cant see friends on school days. I must get up before 6:30 and practice English. I cant be noisy or eat in class.Write a letter to Dr. Know. Tell him about all the rules and how you feel about them. 1. 先先对3b中自己所写的在校及在家的中自己所写的在校及在家的规则进行整行整理，将在家里的理，将在家里的规则及在学校里的及在学校里的规则分分别放放在一起。在一起。2. 先将在家里的先将在家里的规则写成一段写成一段连贯的文字，再将的文字，再将在学校里的在学校里的规则写成一段写成一段连贯文字，表明自己文字，表明自己对这些些规则的感受。的感受。3. 注意开注意开头可写可写“Can you help me? ”来表明自己来表明自己求助的目的。并注意写清自己求助的原因。求助的目的。并注意写清自己求助的原因。4.按按书信的写作格式，写好开信的写作格式，写好开头及及结尾。并再将尾。并再将整个信件再通整个信件再通读一遍。一遍。Dear Dr. Know,_Li YanCan you help me? Im not happy because therere too many rules in my life. I must get up before 6:30 and practice English every morning. I cant go out on school nights. I cant meet friends on school days. I must do my homework first after school. I cant watch TV before I practice the piano.I have to wear the school uniform at school. I have to keep my hair short. I cant be noisy or eat in class. What can I do?One possible version1 Fill in the blanks with the words in the box. arrive late listen to be noisyfollow the rules be strict My name is Timmy the Mouse. I must get up early at 6:30 a.m. every morning. Then I have to go to the kitchen to get food for Grandpa. I never _ to the kitchen because I have to get there before the cat gets up. My grandpa always tells me I cant _. I _ him because I dont want the cat to get me! My grandpa _ with me, but I think its best to _.listen toisnt strictbe noisy arrive late follow the rulesSuppose you are the little mouse. Retell your story to your partners. My names Timmy the Mouse. I must get up, 6:30go to the kitchen arrive late, get upgrandpa, be noisylisten to, get mestrict with, follow2 Use can/cant, have to/must and dont to write about the rules at school. Write two sentences for each rule.1.arrive late/ class _2. listen/ teacher_ _Dont arrive late for class. We cant arrive late for class. We must/ have to listen to our teachers at school.3. be noisy/ library_ _4. speak English/ English class_ _5. eat/ dining hall _We must/can speak English in the English class.We cant be noisy in the library. Dont be noisy in the library.We must/can eat in the dining hall. 1. wear uniforms, at school _2. clean my room, every Sunday _We must wear uniforms at school.I must clean my room every Sunday.Make more sentences.3. go to a movie, on school nights _4. leave dirty dishes, after dinner? _ _5. drive, before, eighteen _I cant leave dirty dishes in the kitchen after dinner.Dont go to a movie on school nights.You cant drive before youre eighteen.1. keep + 名名词/代代词 + 形容形容词 意意为“保持保持处于于状状态” e.g. We must keep our classroom clean every day. 我我们必必须每天保持教室干每天保持教室干净。 How can you keep the fruit fresh? 你是怎你是怎样保持水果新保持水果新鲜的？的？2. learn 学学习；学会；学会 (1) learn + 事物事物 e.g. Ms. Wu helps me to learn English on weekends.吴老吴老师周末帮我学周末帮我学习英英语。 (2) learn to do sth. 学学习做某事做某事e.g. Lets learn to play chess after class.让我我们下下课后学后学习下棋吧。下棋吧。 1. 我不开心因我不开心因为有太多的有太多的规则。 Im not _ because therere _ _ rules.2. 在学校里我在学校里我们必必须保持保持头发很短。很短。 We _ _ our hair _ at school. 3. 放学后，我不能看放学后，我不能看电视或打或打篮球。球。 I _ watch TV _ play basketball _ school.afterhappycant ortoo many填上正确的填上正确的单词，补全句子。全句子。must keep short4. 在星期六我也不能休息，因在星期六我也不能休息，因为我必我必须 要学要学习钢琴。琴。 I _ _ on Saturday _ because I _ _ _ _ play the piano. 5. 老老师对我我们很很严格。格。 Our teachers _ _ _ us. have to learn tocant relaxare strict witheither2. If you are Dr. Know. Write a short letter to Zhao Pei.1. Retell the story of Timmy the Mouse to your parents at home.