七年级英语下册unit4don’teatinclass课件新版人教新目标版

To learn imperatives (Dont .). To learn to use can for permission. To learn to use model verbs have to, must. Objectives Part I Words & Expressions Part II Grammar Focus Part III Exercises Part I Words & Expressions Lets learn some new words. hallway hall dining hall fight uniform dish dishes do the dishes make ones bed kitchen hair WordsExpressions rule n. 规则规则 ；规规章 arrivev. 到达 (be) on time准时时 listenv. 听；倾倾听 listen to .听 sorryadj. 抱歉的； 难过难过 的；惋惜 的 WordsExpressions outside adv. 在外面 adj. 外面的 wearv. 穿；戴 importantadj.重要的 bring v. 带带来；取来 have to必须须；不得不 quietadj. 安静的 WordsExpressions out adv. 外出 go out 外出（娱乐娱乐 ） practicev. & n. 练习练习 before prep. & conj. 在 以前 adv. 以前 dirtyadj. 脏脏的 moreadj. & pron. 更 多（的） WordsExpressions noisyadj. 吵闹闹的 relax v. 放松；休息 readv. 读读；阅读阅读 terrible adj. 非常讨厌讨厌 的 ；可怕的 feelv. 感受；觉觉得 strictadj. 严严格的；严严 厉厉的 WordsExpressions be strict (with sb.) (对对某人)要求 严严格 remember v. 记记住；记记起 followv. 遵循；跟随 follow the rules 遵守规则规则 luckn. 幸运；运气 keepv. 保持；保留 learnv. 学习习；学会 New York纽约纽约 Part II Grammar Focus Key Structures 1. Dont run in the hallways. 2. Dont fight. 3. What are the rules? We must be on time for class. 4. Can we eat in the classroom? No, we cant, but we can eat in the dining hall. 5. Can we wear a hat in class? Yes, we can. / No, we cant. 6. Does he have to wear a uniform at school? Yes, he does. / No, he doesnt. 7. What do you have to do? We have to be quiet in the library. Key Points 一、祈使句 l 功能：命令、警告、要求。 l 结构：省略了主语You的句子。 1. 动词原形（+宾语）！/ Be动词+ 形容词/名词！ (1) Close the door, please! (2) Be careful ! Here comes the car. 2. Dont +动词原形（+宾语）！/Dont be 动词+形容词/名词! (1) Dont eat in the classroom! (2) Dont be late for class! 3. No + 名词 / doing！ (1) No smoking! (2) No talking. 4. 含有祈使句的复合句：祈使句 + and + 句子。祈使句 + or + 句子。 (1) Work hard and youll succeed. =If you work hard, you will succeed. (2) Work hard or youll fail. =If you dont work hard, you will fail. 二、情态动词 l can的用法（can 在肯定句、疑问句 、 否定句的用法） 1. 肯定句：Sb. can do sth. We can eat in the dinning hall. 2. 疑问句：Can sb. do sth.? Can we listen to music? 3. 否定句：Sb. cant (can not) do sth. We cant listen to music in the hallways. l have to 的用法 1. 肯定句：主语+have to+动词原形+ 其他 注意：一般现在时：主语是第三人 称单数时用has to，其它时候用have to （过去时：无论人称和单复数都用had to.） (1) We have to wear sneakers for gym class. 在体育课上我们必须穿运 动鞋。 (2) Tom has to practice the guitar every day. 汤姆每天必须练习弹吉它。 (3) I had to get up at 5:00 am last Monday. 上周一我不得不早上5点起床 。 2. 否定句:主语+dont have to+动词原形+其他。 一般现在时:主语是第三 人称单数时用doesnt have to, 其它时候用dont have to。 (过去时: 无论人称和单复数 都用didnt have to) (1) Nick doesnt have to wear a uniform. 尼克不必穿制服。 (2) We didnt have to do our homework at once. 我们不必马上完成作业 。 3. 疑问句：Do/Does/Did+主语 +have to +动词原形+其他 (1) Do you have to stay at home on weekends? Yes, I do. / No, I dont. (2) Did he have to go to bed by 11:00 last night? l 情态动词must的用法： must表示说话人的主观看法， 及主观上的必要性，还用于命令 或愿望。只用于现在时，无人 称和单数的变化。在表示过去 、将来和完成时，用have to的 相应形式来代替must。 1. 在表示有做某一个动作的必要和义务时 ， 它的意思是“必须，应该”。 You must finish your homework first. 你必须先完成作业。 2. 表示有很大把握的判断或者推测，意思 是“一定，准是”。 The tall man must be your father. 那个高个子男人一定是你的爸爸。 3. 以must开头的一般疑问句，它 的否定回答用neednt（不必 要），不用mustnt（不允许） ， mustnt常用于否定句中表示 “不允许，禁止”。 (1) Must I go there on foot? 我必须得走过去吗？ No, you neednt. 不，你不需要。 (2) You mustnt park your car here. 你的车不允许停在这儿。 Part III Exercises 趁热打铁 一、单项选择 1. Can we wear hats in class? _. A. Yes, we do B. No, we dont C. No, we can D. No, we cant D 2. Can I use your ruler? Yes, you _. A. may B. need C. can D. must 3. _do you have to do after school? Do my homework, of course. A. WhatB. When C. Where D. How C A 4. _ late for school again. Sorry, I wont. A. Not be B. Dont be C. Not D. Dont 5. _ your homework after school. A.Doing B. To do C. Do D. Be do B C 1. 上课迟到 _ late _ lass 2. 清洗餐具 _ the _ 3. 帮妈妈做早饭 _ mom _ breakfast 4. 整理床铺 _ ones bed 5. 对某人要求严格 be _ _ sb. arrive/befor dodishes 二、短语互译 help make make strictwith 1. (Can/Does)_ we eat in class? 2. (Dont/Has to)_ wear a hat to school! 3. Does Bill (have to/can)_ go to bed now? 4. (Do/Have to)_ they wear sneakers? 三、选择正确的动词填空。 Can Dont have to Do 1. We have to stay at home. (改为一般疑问句) _ you _ to stay at home? 2. Bob has to get home before nine oclock. (改为否定句) Bob _ _ _ get home before nine oclock. 四、句型转换 Dohave doesnthaveto 3. We can wear our own clo