Unit 2 Section A Grammar Focus（同步课件）-【精品课】2025-2026学年七年级英语下册同步精品课件（新教材人教版）

No Rules, No order Section A - Grammar Focus Unit2 Learning Objectives 语言能力 1 学习能力 2 文化意识 3 思维品质 4 to master the usages of imperatives and modal verbs(can, have to, must) and use them to express the rules to master the ability of learning to meet practical needs; to give information about rules in different places to follow the rules; to know the rules in different places to stimulate the interest of English learning; to lead Ss to express their thoughts Listen and complete: Listen and check your answers: Read and think: Don't need too much talking without saying anything All I need is someone who makes me wanna sing Take me to your heart Take me to your soul Give me your hand before I'm old Show me what love is haven't got a clue Show me that wonders can be true They say nothing lasts forever We're only here today Love is now or never Bring me far away Take me to your heart Take me to your soul Give me your hand and hold me Show me what love is be my guiding star It's easy take me to your heart Pay attention to the red sentences. What kind of sentences are they? Imperatives 祈使句 Rule 4: ___ prepared (准备好的) for class. Rule 5: ______ sleeping in class. Be No ______ sleep in class. Don’t Rule 1: ______ cellphones in class. Rule 2: ______ your hand to speak. Rule 3: _________ your classmates and your teacher. No Respect ______ use cellphones in class. Raise Don’t 祈使句 imperative Sentence 缺少主语 ______ obey the rules. _______ break the rules Let’s Let’s not 表示命令、请求、劝告、警告和禁止等的句子。 Presentation Let’s learn imperatives 祈使句 英语句子按照用途可分为陈述句、疑问句、祈使句和感叹句四类。 祈使句一般用来表示请求、命令、劝说、号召、警告等。 祈使句的主语一般是第二人称you，但往往省略。 祈使句的肯定式以动词原形开头，否定式在动词原形前加don’t。 Raise your hand to speak. Don’t sleep in class. 肯定句：________ (+宾语)+其他. 否定句：_____+动词原形 (+宾语) +其他. 1. 上学日请穿校服。 Wear the school uniform on weekdays, please. Don’t watch TV before dinner. 2. 晚饭前不要看电视。 Do型祈使句 动词原形 Don’t Come in! Don’t come in! Do型祈使句 Go along this street and turn left. Practise the guitar every day. Don’t practise the guitar every day. 肯定：动词原形+宾语 +其它成分 否定：在句首加don’t。 10 Be prepared for class. Be型祈使句 肯定句：____+表语+其他. 否定句：______+be+表语 +其他. 1. 下次要细心。 Be careful next time. 2. 图书馆不要吵闹! Don’t be noisy in the library! =Be quiet in the library. Be Don’t Be careful when you cross the street. 肯定： Be+表语 (名词或形容词 + 其它成分) 否定： 句首加don’t。 Be型祈使句 Be quite in the library. Don’t be late for class. Let’s obey the rules. Let’s not break the rules. 肯定句：____+宾语+_________+其他. 否定句：____+let+宾语+动词原形+其他. 或Let+宾语+___+动词原形+其他. 1. 咱们休息一下吧。 Let’s have a rest. 2. 不要让他去游泳。 Don’t let him go swimming. =Let him not go swimming. Let 动词原形 Don’t not Let’s型祈使句 Let型祈使句 Let’s go! Don’t let him go. Let’s not go there. 肯定： Let +宾语+动词原形 +其它成分 否定： 句首加don’t / Let + not +动词原形 +其它成分 常用于第一人称和第三人称，表示建议和劝说等。 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! No cellphones in class. No sleeping in class. 注意： “No+名词/动词⁃ing形式”表示禁止或规劝，常用于公共场所。 e.g. No photos! 禁止拍照！ No smoking！ 禁止吸烟！ 为表示礼貌，祈使句经常在句首或句末加please。 句开用please时，前面通常加逗号。 e.g. Please write and tell me about yourself. Please call Karen at 555-8823. Come in, please. 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! 祈使句歌诀 祈使句，祈使句，请求、命令或建议。 主语是______常省去，_________开头记。 否定形式要注意，______放到句首去。 要讲客气用______，句首、句末没关系。 No doing! 需提起，表示________不小觑。 you 动词原形 Don’t please “禁止” Let’s summarize Read the sentences. Do the verbs in red need to change forms? Why? Walk in the hallway. Don’t run! Be polite and treat one another with respect. Don’t litter. No, they don’t. Because they are imperative sentences. Find more imperative sentences in “Section A”. Don’t be late for school. Arrive on time. Don’t run in the hallways. Don’t eat in the classroom. Don’t litter. Keep your school clean and tidy. Wear the school uniform. Be polite and treat everyone with respect. Put up your hand if you want to ask your teacher a question. 动词原形开头 Don’t+ 动词原形开头 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 Can you find other ways to express the rules? Have a think: 1. 情态动词在用法上有什么共同点？ 2. can在本单元主要表示什么含义？它还可表达什么意思？ 3. have to在句法上与其他情态动词有何区别？ 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 dinning hall. 和动词原形连用 表许可；表能力 Read the sentences. Do the verbs in red need to change forms? Why? 情态动词 情态动词表示说话人的语气和情态，如请求、许可、意愿、可能等。 在形式上，情态动词一般没有人称和数的变化。 有的情态动词没有时态的变化，如must。 情态动词本身不能单独作谓语，必须和动词原形连用。 常见的情态动词有can、may、must、have to、should、would等。 情态动词一般有多个意义。 情态动词的否定式一般是在其后加not构成，一般疑问句通常将它提到句首。 情态动词的肯定式一般不重读。 3a 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. Modal verbs(情态动词) such as “can” “must” and “have to” are followed by the base form of a verb. Modal verbs 情态动词 情态动词有一定的意义,但不能单独作谓语,一般和实义动词连用构成谓语. 情态动词是动词的一种,表示说话人的语气和态度等. can can’t must mustn’t have to may will should 注意: Modal verbs 情态动词 1. -Can I eat in the classroom? -No, you can’t. But you can eat in the dining hall. can can’t must mustn’t have to may will should Read and summarize: 2. We can’t feed animals in the zoo. 3. You can go home now. 可以;能 不可以;不能 可以;能 不可以;不能 可以;能 1 can表示请求或许可,意为 “可以;能”,否定形式can’t意为 “不可以;不能”. Modal verbs 情态动词 -Can you play the piano? -No, I can’t. But I can play the guitar. can can’t must mustn’t have to may will should Read and summarize: 能;会 不能;不会 能;会 2 can表示能力,意为 “能;会”,否定形式can’t意为 “不能;不会” Modal verbs 情态动词 1. -Can it be true? -No, it can’t be true. can can’t must mustn’t have to may will should Read and summarize: 2. Tom can’t be at home. 可能 不可能 不可能 3 can表示推测,意为 “可能”,否定形式can’t意为 “不可能”.(常用于否定句或疑问句) Modal verbs 情态动词 can can’t must mustn’t have to may will should 3 can表示推测,意为 “可能”,否定形式can’t意为 “不可能”.(常用于否定句或疑问句) Summary 2 can表示能力,意为 “能;会”,否定形式can’t意为 “不能;不会” can表示请求或许可,意为 “可以;能”,否定形式can’t意为 “不可以;不能”. 1 Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: Frank has to/must finish his homework before playing basketball. 两者都表示 “必须”,有时可以互换使用. 注意: must和have to 用法并不完全相同. Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: It rains. Frank has to stop playing basketball. have to+动词原形 “不得不做...;必须做...” 强调客观需要. 有人称和数的变化.第三人称单数形式为has to. Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: have to+动词原形 “不得不做...;必须做...” 强调客观需要. 有人称和数的变化.第三人称单数形式为has to. 构成否定句或疑问句须借助助动词do和does. Frank has to stop playing basketball. Frank doesn’t have to stop playing basketball. 否定句: Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: have to+动词原形 “不得不做...;必须做...” 强调客观需要. 有人称和数的变化.第三人称单数形式为has to. 构成否定句或疑问句须借助助动词do和does. Frank has to stop playing basketball. Does Frank have to stop playing basketball? 疑问句: Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: I like English. I must learn it well. must+动词原形 “必须;一定” 强调主观意愿.认为有义务或有必要去做某事. Tom wants to get into a good university. He must study hard. Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: We mustn’t cross the road when the red light is on. must还可用于否定句中. 注意:mustn’t表示禁止, “不要;不许”. You mustn’t smoke here. Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: Must I do my homework now? must还可用于疑问句中. 注意:不能用mustn’t作否定回答. 肯定回答: 否定回答: Yes, you must. No, you needn’t. No, you don’t have to. mustn’t表示禁止,不允许 Modal verbs 情态动词 can can’t must mustn’t have to may will should Read and summarize: The book must be Frank’s because his name is on it. must还可表示把握性很大的推测,意为 “一定;必然”. 通常用于肯定句. Frank 情态动词have to have to 表示“不得不；必须”，强调客观需要，有“不得不、被逼无奈做某事”的意思。 have to既有人称、单复数的变化、也有动词时态的变化。 我们在图书馆里必须保持安静。 We have to be quiet in the library. She has to do her homework first when she gets home. 她回家后必须先做作业。 I had to stay in bed last month. 上个月我不得不卧床休息。 情态动词have to的句型结构 - Does he have to go to bed now? - Yes, he does. / No, he doesn't. We don't have to clean the room today. She has to look after her mother at home. ③ 一般疑问句及回答： _______________________________________________________ _______________________________________________________ ② 否定句：_______________________________________________ ① 肯定句：_______________________________________________ 主语 + have/has/had to + 动词原形 + 其他. 主语 + don't/doesn't/didn't have to + 动词原形 + 其他. - Do/Does/Did + 主语 + have to + 动词原形 + 其他? - Yes, 主语 + do/does/did. / No, 主语 + don't/doesn't/didn't. ④ 特殊疑问句：____________________________________________ 疑问词+do/does/did+主语+have to+动词原形+其他? What do you have to do? 词语 意思 相同 例句 have to 第三人称单数_____ ,疑问句或否定句要借助________,否定形式表示________ 因为他的自行车坏了,他不得不步行去上学。 must 情态动词,否定句mustn't意为_______,否定回答可以用_______或_________ 我们必须努力学习。 我必须打扫所有的房间吗？ (否定回答) 不得不 后跟动词原形 has to do;does “不必” He has to walk to school because his bike is broken. 必须 “禁止” needn’t don’t have to We must study hard. Must I clean all the rooms? No, you needn’t/don’t have to. must VS have to 相同点 不 同 点 We have to/must follow the rules. 表示“必须”，有时二者可 互换。 * We must hurry. I don't want to miss the beginning of the show. * We have to hurry. The train is leaving in five minutes. * must通常表示说话人的主观 看法，语气比较强烈； * have to往往强调客观需要。 * You mustn't talk to your mother like that. * You don't have to come if you don't want to. 它们的否定式含义大不相同。 * mustn't表示“不准；禁止”； * don't have to表示“不必”。 * I/We/You/They must do something about it. * • I have to finish my work today. • She has to work late today. • They have to clean their room. * must没有人称和数的变化。 * have to有人称和数的变化。 借助动词do，does 构成疑问句或否定句 客观事情:不得不 有人称、数和 时态的变化 have to 主观事情:必须 无人称、数和 时态的变化 引导一般疑问句时，否定回答用 No, you needn’t./ No, you don’t have to. 表示猜测时,意思为“一定；必然” must Let’s look and tell the rules. can have to must can’t mustn’t We can’t run in the hallways. wear the seat belt jump the queue We can’t smoke. We can’t eat in class. We mustn’t bring phones to school. We can’t be late for school. We must be on time. We must speak quietly. We have to wear the seat belt. We can’t jump the queue. Practice 1. Don’t jump the queue. You ___________ wait your turn. 2. I _____ feed my dog many kinds of food, but I ____give him chocolate. It is bad for him! 3. A: Can I leave the classroom if I don’t feel well? B: Yes, but you ___________ tell your teacher about it when you ______ be absent from class. 4. A: Hey! Can I look at your book? B: Shh, we ___________ talk quietly in the library. 5. A: Can you put on your seat belt? We ___________ wear one when we’re in a car. B: Sure. Thanks! 3b. Complete the sentences using can, have to / must, or can’t / mustn’t. have to / must can have to / must have to can’t have to/must have to/must Grammar Focus 3c. Look at the first sign and read the rules. Then write the rules for the other signs. Do not eat or drink. No eating or drinking. You can’t/ mustn‘t eat or drink. Grammar Focus 3c. Look at the first sign and read the rules. Then write the rules for the other signs. Do not park. No parking. You can’t/ mustn’t park. Grammar Focus 3c. Look at the first sign and read the rules. Then write the rules for the other signs. Do not take photos. No photos. You can’t/ mustn’t take photos. Grammar Focus 3c. Look at the first sign and read the rules. Then write the rules for the other signs. Do not swim. No swimming. You can’t/ mustn’t swim. Grammar Focus 3c. Look at the first sign and read the rules. Then write the rules for the other signs. Do not feed the birds. No feeding the birds. You can’t/ mustn’t feed the birds. Let’s role play. Work in groups, talk about school rules and make a poster. 3d. In groups, brainstorm three rules for one of the places below. Then draw signs to show the rules. Share your signs in class and explain what they mean. In the library： We must keep quiet. We mustn’t make noise. We can’t ... library rules In the library, we must keep quiet first. We mustn’t make noise. Second, we can’t bring any food or drink to the library. We must keep it clean and tidy. What’s more, we have to return the books after we finish reading. Let’s make the library a better place for us to study. Sample Computer Room Rules ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ We must be quiet in the computer room. Don’t eat or drink in the computer room. Don’t run in the computer room. Wear slippers in the computer room. Clean the computer room every day. Say No to all uncivilized behaviors! 向不文明行为说不！ 一、祈使句 57 二、情态动词can，must与have to 58 一、用括号内所给单词的适当形式填空。 1. ______（open） the door,Sara. 2. ____________（not spend） too much time on your phone before going to bed. 3.No _______（talk） in the library! 4.Please __________（not play） computer games so much,Jim! 5.Be _______（care） when you cross the road! 6.I ______（can） play basketball with you. I have too much homework to do. Open Don’t spend talking don’t play careful can’t 59 7.—Can your parents ______（speak） English? —Yes,they can. speak 8.You can ______（swim） in the swimming pool with your friends at the weekend. 9.Slow down,please. You ________（must） run in the hallway. 10.We have to ____（put） on our seat belts when we’re in a car. swim mustn’t put 60 二、根据句意,用must或have to填空。 11.Jim,you ______ listen to your teacher in class. must 12.— ______ I read the book in the reading room? —No,you don’t ________. Must have to 13.There is no bus now. I ________ go back home on foot. have to 14.—Must I finish my homework today? —Yes,you ______. must 15.—Mum,can I get up late at the weekend? —Sure. You don’t ________ get up early. have to 61 三、用方框中所给动词的适当形式完成海报。 call enjoy share make join do ________________________________________________________________________________________________________ 16._____ our Film Magic Club for an amazing journey（旅程）! Join 62 17.______ your ideas in the club. 18._______ the magic of storytelling and film-making. 19.______ friends with other film fans. 20.______ miss out!Let’s have wonderful moments together. For more information,21._____ us at 1234567. Share Enjoy Make Don’t call 续表 63 四、用方框中所给单词的适当形式填空。 queue quiet feed leave noise 22.I can’t sleep because of the ______ from the party. 23.You have to be patient（有耐心的） when you wait at the end of a long ______. 24.Mary ______ her dog every morning before school. 25.Ken _______ for school at eight o’clock every morning. 26.Shh,let’s talk _______ on the train. noise queue feeds leaves quietly 64 五、用方框中所给短语的适当形式填空。 be absent from wait sb.’s turn make noise seat belt jump the queue 27.It’s not polite to _______________ at the bus stop. 28.You should ______________ to get on the bus. Don’t push. 29.When Tony ______________ class,the teacher asks if he is OK. 30.Please put on your _________ in the car. 31.Please stop _____________.Give us a break! jump the queue wait your turn is absent from seat belt making noise 65 六、语言知识运用。 阅读下面的短文，从方框中选择5个恰当的词块填空，并将其正确形式写在 相应的横线上。 （2024-2025·南充市期末改编）#1.1 one another play sports in order stay safe go across look after 66 Why We Follow Rules#1.1.2 Rules keep us safe. When we 32.__________ the street,we must follow traffic（交通） rules. We should put on our seat belt when we are in a car to 33._________. Rules keep things 34._________.For example,we mustn’t eat,drink or make noise in the library. In a quiet place,people can focus on studying. A game is fun when it is fair（公平的）.When we 35.___________,we should follow the rules. For example,when we play basketball,following the rules can help us respect 36.____________. Tom Anne Amy go across stay safe in order play sports one another 67 Lavf58.46.101 Lavf58.46.101 Lavf58.20.100 Bilibili VXCode Swarm Transcoder v0.7.67 $