Unit 2 No Rules,No Order Section A Grammar Focus 课件 2025-2026学年人教版七年级英语下册

Unit 2 No Rules,No order SectionA Grammar Focus This class,we'll draw signs and show the rules and meanings with Tom.Look after this card,we will use it at the end of this unit. Tom comes to a new school.His classmates are very friendly.They know rules are important.On the first day, Anne tells Tom some school rules here.Then Tom knows more rules in life.Today he writes a letter to his old friend Peter.Let's have a look! Do you remember the rules from Ms Brown? Review the school rules. 1. Walk in the hallway.Don't run ! 2.You have to the uniform.You mustn't wear other clothes to school instead. wear 3.Don't litter .Make sure to keep the school tidy. 4.We must be polite and treat everyone with respect. ICan )I answer my phone in class?No,I can't. OHeican 't `}eat snacks in class. OHe 'mustn't ) bring my phone to class.I must) keep it in the locker. OHe has to; tell his teacher when he is absent from class. 1.情态动词can, 无 人称和数的 变化，后接动词原形， 其否定形式为 cannot/can't 一般疑问句can 提前。 ①表示能 力，意为能，会； ②表示许可，请求，意为可以 Discuss and try to find the words rules.(讨论并尝试发现规律) 情态动词用于表达说话人的态度、意愿、推测、建议、能力、义务等。 情态动词 Can ,I eat snacks in class?No.I have tocat in the dining hall. Look and say Don’t fight with others. Be polite and treat others with respect. The red signs warn the students what they can’t do. Then look at the green signs and say what they have to do. Read the letter and answer the questions. Dear Peter, How is it going?My school is very large and safe.My classmates are friendly.On my first day in class,I know some school rules.Can I eat snacks in class?No.I can't eat snacks in class.I havé to eat in the dining |hall.Can I answer my phone in class?No,I can't.I mustn't bring my phone to class.I must keep it in the locker.I have to tell my teacher when I am absent from class. On the second day,I know some other rules in life.Don't jump the queue.It's the same in our country. Don't give pets chocolate because it's bad for them.No talking in the library.Wear a belt in a car. In class,my teacher Ms Brown often chants with us.It's important and fun.Let's follow the rules.Be quiet.Listen! Rules are safe.Rules mean love.Rules are everywhere,Rules mean care. Rules are important.Wear a belt.Don't eat snacks.Don't feed pets chocolate. Yours Tom Q1:How many school rules does Tom have? Three. Q2:What are they? He can't eat snacks in class.He mustn't bring his phone to class. He has to tell his teacher when he is absent from school. Read the sentences and answer the questions. Read and summary Don’t run in the classroom. Walk in the classroom. Don’t talk loudly. Keep quiet. Don’t fight with others. Be polite and treat others with respect. We use imperatives to give warnings or directions. When do we use imperatives? Walk in the classroom. Keep quiet. Be polite and treat others with respect. Observe and work out Positive imperatives: _________________ Do/Be + ... 1. Don’t be late for school. _______ on time. Think and fill Do you think these students behave properly? Try to fill in the blanks to tell them what they have to do. 2. Don’t sleep in class. __________ the teacher carefully. 3. No littering. ________ the classroom clean. Listen to Arrive Keep Sb. have/has to + V原+sth. He has to wear a uniform at school. We have to be quiet in the library. 陈述句规则： 情态动词 “have to” 有人称、数和时态的变化 have to-has to has to Don’t be late for school. Don’t sleep in class. No littering. Observe and work out Negative imperatives: 1. _______+ do/be ... 2. _______+ v.-ing Don’t No Look at the signs and complete the sentences. You can use these words to help you. Pay attention to the verb forms. 1. _______ in the hallway. Don’t _______! 2. ________ polite and ________ one another with respect. 3. Don’t ________. / You mustn’t ________. / You can’t ________. Walk run Be treat litter litter litter 1 2 3 litter treat walk be run What does she have to wear? She has to wear school uniform. Does she have to wear a red scarf? No, she doesn’t. She doesn't have to wear a red scarf. （否定回答） （否定句） （一般疑问句） 情态动词 “have to”句型结构 What do you have to do? We have to do morning exercises. Do you have to do morning exercises every school day? No, we don’t. We don't have to do it on Monday. （否定回答） （否定句） （一般疑问句） 情态动词 “have to”句型结构 have to 1.(肯定句） He/She/It+_______+______ 2.(否定句） He/She/It+____________+_______ 3.(一般疑问句） ______+ he/she/it +______+V原+...? Yes, he/she/it +_______. No, he/she/it +_______. has to 动词原型 动词原型 doesn't have to Does does doesn't have to 情态动词 “have to”句型结构 have to 1.(肯定句） I/We/They+_______+______ 2(否定句） I/We/You/They+_________+_______ 3(一般疑问句） ______+I/we/you/they+______+...? Yes, I/we/you/they +_______. No, I/we/you/they +_______. have to 动词原型 动词原型 don't have to Do do don't have to 情态动词 “have to”句型结构 (1) have to 表示受到外在因素的压迫甚至威胁，内心 不情愿做某事，但又“不得不”去做某事 eg：I _______________________ ( 呆在家里）because it’s raining all day. (2) must表示个人主观上认为“必须”做某事 eg：From now on, I ____________________ （努力学习）. I hope I can be a great man like Mr. Zhong Nanshan when I grow up. have to stay at home must study hard 情态动词 “have to”和must 的区别 No型祈使句 No+v-ing! / No+名词! 3. 禁止钓鱼! 2. 禁止停车! 1. 禁止拍照! No fishing! No parking! No photos! Let’s learn imperatives 肯定祈使句 ① Do型祈使句 ② Be型祈使句 ③ Let型祈使句 否定祈使句 动原+其他 Don’t+动词原形+其他 Be+表语+其他 Let+宾语+动原+其他 Don’t+be+表语+其他 Don’t+let+宾语+动原+其他 Let+宾语+not+动原+其他 表示 “禁止” ④ No型祈使句 No+动词-ing! No+名词! Let’s summarize (3) must 无人称和数的变化 (4) have to 有人称，数和时态的变化 eg: Wu Zihang has to cook for himself every day. (改为一般疑问句) --- ________Wu Zihang ____ ____ cook for himself every day? --- Yes,______________. /No, ______________. Does have to he does he doesn't 情态动词 “have to”和must 的区别 Let’s practice Don’t be 1. It’s an important meeting. (not, be) late. 2. (not, make) any noise! Your mother is sleeping. 3. (not, talk) and (read) aloud. 4. The notice on the wall says “ ”. (no smoke) 5. (look) out! A car is coming. 6. (not, let) the baby cry. 7. Let’s (not say) anything about it. Don’t talk Don’t make read No smoking Look Don’t let not say 2. Can we bring our phones to class? Yes, we can. No, we can't. 1. Can you play the guitar? Yes, I can. No, I can't. can 常用于询问能力和许可。 能力 许可 情态动词can，must,have to Sb. can/can't + V原. must 表示主观的义务和必要，多译为“必须”。 have to 表示客观需要做的事情，多译为“不得不” 2.她妈妈生病了，她不得不自己做晚饭。 Her mother is ill, she has to cook dinner by herself. 1.他必须在晚上8点前完成作业。 He must finish his homework before 8:00 in the evening. 表示个人主观想法，且没有人称和时态的变化 表示外界客观原因,有人称、数和时态的变化 have to-has to 例句展示 Read the sentences. Do the verbs in bold need to change forms? Why? Walk in the hallway. Don’t run! Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter. Can we bring our phones to class? No,we can’t. We must keep them in our lockers. Can we eat snacks in class? No,we can’t eat in class. We have to eat in the dining hall. No, they don’t. Because the verbs appear in imperative sentences or after modal verbs. 祈使句中 情态动词后 $