Unit 4Don’t eat in class.Section A GF-3c01Lead-inLet’s talkTalk with your partner.A: What are the rules?B: . / .Don’t run in the hallwaysWe can’t run in the hallwaysDon’t listen to music in classWe can’t listen to music in classDon’t fightWe can’t fightDon’t eat in the classroomWe must eat in the dining hallDon’t arrive late for classWe must be on timeBrainstorm When we walk around the school, we may find rules everywhere. Rules can help us get along and stay safe. Discuss with your partner: Where can we see rules at school? Hallway Rules1. _____________ _____________2. _____________ _____________3. _____________ _____________4. _____________ _____________Don’t push.No pushing.1234Don’t shout.No shouting.Don’t run.Don’t litter.No littering.No running.Here, we’re in the hallway. Look at the rules, can you tell what they are?Brainstorm We are now in the classroom. Tell your partner the class rules. Brainstorm Class Rules1. _________________ _________________2. _________________ _________________3. _________________4. _________________Don’t be late.Be on time.Don’t use cell phone.No cell phone.Don’t sleep in class.Don’t throw paper.02Presentation Group 1：祈使句的否定句怎樣構(gòu)成？肯定句呢？一般在什么情況下會(huì)用祈使句？Group 2：情態(tài)動(dòng)詞在用法上有什么共同點(diǎn)？Group 3：can在本單元主要表示什么含義？它還可表達(dá)什么意思？Group 4：have to在句法上與其他情態(tài)動(dòng)詞有何區(qū)別？Let’s discussDivide the whole class into 4 groups and each group discusses one question.Let’s learnTry to find out the rules.祈使句的否定句怎樣構(gòu)成？肯定句呢？祈使句的否定句在動(dòng)詞原形前加don’t，表示“不要做什么事”。祈使句的肯定句通常是以動(dòng)詞原形開頭的。Let’s learnTry to find out the rules.一般在什么情況下會(huì)用祈使句？祈使句一般用于上級(jí)對(duì)下級(jí)，長輩對(duì)晚輩之間，表示命令、勸說或警告，也可表示請(qǐng)求。Let’s learnTry to find out the rules.情態(tài)動(dòng)詞在用法上有什么共同點(diǎn)？can, must, have to后接動(dòng)詞原形。Let’s learnTry to find out the rules.have to在句法上與其他情態(tài)動(dòng)詞有何區(qū)別？have to有人稱和數(shù)的變化。03Practice Let’s practice3aLook at the pictures in 3a and answer the questions.1. What do the pictures tell us?2. Where can you see these signs? 3. Can we talk loudly/eat/listen to music/take photos in the library?Let’s practice3aWrite the rules for the school library.Don’t eat in the library.Don’t listen to music in the library.Don’t take photos in the library.Let’s practice3bUse the words to make questions about the rules. Then write answers according to your school.1. Be quite? Q: Does she have to be quite in the library? (she/have to/in the library) A: Yes, she does.2. Eat? Q: ________________________________ (he/ have to/ in the dining hall)? A: ________________________Does he have to eat in the dining hall?Yes, he does.Let’s practice3bUse the words to make questions about the rules. Then write answers according to your school.3. Listen to music? Q: ________________________________ (we/ can/ in the hallways)? A: ________________ 4. Wear a hat? Q: _______________________________ (we/ can/ in the classroom)? A: _______________Can we listen to music in the hallways?Can we wear a hat in the classroom?No, we can’t.No, we can’t.Let’s practiceComplete the sentences with can, can’t, must, have to or has to.1. Ann ______ do her homework, so she goes to ask her teacher for help.2. You don’t ______ clean your room today. You can do it tomorrow.3. — ______ Jim speak English? — No, he can’t.4. — ______ I wear my school uniform? — Yes, you must.5. — What do students _________ in library? — They ______ keep quiet.can’thave toCanMusthave to dohave toLet’s practiceUse can, can’t have to / must and don’t to talk about the rules at school. ( ) do homework in the classroom( ) play computer games every day( ) listen to the teachers in class (在課堂上) ( ) run in the hallways( ) read English books in English classCanDon’tcan’tmustLet’s practiceUse can, can’t have to / must and don’t to talk about the rules at school. ( ) wear hats (戴帽子) in class( ) listen to music in the classroom( ) eat in class( ) fight ( ) eat in the dining hallCanDon’tcan’tmustLet’s practiceUse can, can’t have to / must and don’t to write about the rules at school. Write two sentences for each rule.1. arrive late / class ________________________________________2. listen/ teacher __________________________________________3. be noisy / library ________________________________________4. speak English / English class _______________________________________________________5. eat / dining hall _________________________________________Don’t arrive late for class. We can’t arrive late for class.Listen to teacher. We must listen to teacher. Don’t be noisy in the library. We can’t be noisy in the library.Speak English in English class . We must speak English in English class.Eat in the dining hall . We can eat in the dining hall .04Production Grammar FocusChoose one place at school, i.e. playground, computer lab, dining hall and make at least three rules for it. Write your rules below.Group workWhat rules do you suggest ________ make?①___________________________________②___________________________________③___________________________________④___________________________________Complete the passage according to your rules.Group workI suggest ______ make up the following rules. We must _____________________. We can’t ________________________, but we have to _______________________.Group work3cAt my dream school, we don’t have to come to school every day. We...Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!1.We can eat in class.2.We don’t have to come to school every day.3. ...Group workReport to the class. (匯報(bào)) In my dream school, we don't have to come to school every day. We can study at home and ask the teacher for help when we have questions. We can eat in the classroom but we must keep the classroom clean. We can listen to music in the classroom but we must listen to it after class. We can bring our cellphone to school but we can't bring it to the classroom.We don't have to wear school uniforms every day, we can wear our own comfortable clothes. I think my dream will come true!05Language PointsLanguage points祈使句一般用來表示請(qǐng)求、命令、勸說、號(hào)召、警告等。在祈使句中，通常省略主語you，其肯定形式以動(dòng)詞原形開頭，否定形式是在動(dòng)詞原形前加don’t。祈使句句尾用句號(hào)或感嘆號(hào)，讀時(shí)用降調(diào)。為表示禮貌，可以在句首或句尾加上please。句末用please時(shí)，前面通常加逗號(hào)。語法概述Language points 肯定句：動(dòng)詞原形 (+賓語)+其他. 否定句：Don’t+動(dòng)詞原形 (+賓語) +其他.Wear the school uniform on weekdays, please. 上學(xué)日請(qǐng)穿校服。Don’t watch TV before dinner. 晚飯前不要看電視。Do 型祈使句的構(gòu)成Language points 肯定句：Be+表語+其他. 否定句：Don’t+be+表語 +其他.Be careful next time. 下次要細(xì)心。Don’t be late for school! 上學(xué)不要遲到!Be 型祈使句的構(gòu)成Language points 肯定句：Let+賓語+動(dòng)詞原形+其他. 否定句：Don’t+let+賓語+動(dòng)詞原形+其他. 或Let+賓語+not+動(dòng)詞原形+其他.Let’s have a rest. 咱們休息一下吧。Don’t let him go swimming. = Let him not go swimming. 不要讓他去游泳。Let 型祈使句的構(gòu)成Language points其他類型的否定祈使句(1) No+v-ing! / No+名詞!No fishing! 禁止釣魚!No parking! 禁止停車!No photos! 禁止拍照!(2) never 代替don’t 來加強(qiáng)語氣。Never give up! 決不放棄!Language points祈使句Do 型祈使句的構(gòu)成Be 型祈使句的構(gòu)成Let 型祈使句的構(gòu)成No+v-ing! / No+名詞!never 代替don’t 來加強(qiáng)語氣Language points情態(tài)動(dòng)詞have to與must二者均可表示“必須”，其后均接動(dòng)詞原形。It’s too late. I have to take a taxi. 太晚了，我必須乘出租車。I must go now. 我必須現(xiàn)在就走。Language pointshave to與must的不同點(diǎn)06Exercises Exercise123【2020·江蘇省徐州市】Give me a chance, ________I will give you a wonderful surprise.A. or B. and C. but D. so【2020·甘肅省武威市】—Don't keep the lights on when they're not in use!—________ A. Not at all. B. Sorry, I won't. C. No, thanks. D. I'm afraid so.【2020·武威市】You haven't eaten all day. You ________ be very hungry.A. couldn't be B. can't C. might D. mustBBD一、單項(xiàng)選擇Exercise一、單項(xiàng)選擇45【2020·湖南省長沙市】________ your smartphones, and read for at least 30 minutes, every day! You know, reading helps us to deepen our spiritual world.A. Put away B. To put away C. Putting away[2020·湖北省宜昌市]—Don’t forget to keep a safe distance（距離）at least one meter, Jack!—____________.A. Sorry, I won’t B. No, I can’t do it C. Not at all D. I hope notAAExercise二、句型轉(zhuǎn)換（每空一詞）Talk in class. (改為否定句)______ ______ in class.I have to do my homework after school. (對(duì)畫線部分提問)______ ______ you ______ ______ ______ after school?We have to listen to the teacher. (改為一般疑問句并作肯定回答)______ we ______ ______ listen to the teacher?______, we ______.Don’ttalkDohave toWhatdohave to doYes123do07Summary Summary Unit 4 Don’t eat in class. (Grammar Focus-3c)祈使句(重點(diǎn)為否定結(jié)構(gòu))情態(tài)動(dòng)詞can表“許可”的用法(肯定及否定陳述，一般疑問句結(jié)構(gòu)及肯定和否定回答)Grammar情態(tài)動(dòng)詞must的句型結(jié)構(gòu)(僅限肯定陳述)情態(tài)動(dòng)詞have to的句型結(jié)構(gòu)(肯定及否定陳述，一般疑問結(jié)構(gòu)及肯定和否定回答)08Homework Preview the new words and phrases in Section B(1a-1d).Do the exercises in students’ book.Thanks for listening !

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