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1、Unit 4,Dont eat in class.,Section A Period 2 (2d-3c),learn the new words: wear, important, bring, uniform, quiet, out, have to, 2. 学习使用祈使句的用法 3. 学习情态动词 must /have to,Dont fight.,Look and say: whats the rules?,Dont run in the hallways.,Dont arrive late for class.,Dont eat in class.,1. Are there many
2、rules at school?,Read the conversation in 2d and answer the questions.,Reading,2. Can he bring music players to school? 3. Do they have to always wear the school uniform?,2d. Role-play the conversation.,John: Hi, my names John. Its my first day at school. Alice: Hi, John. Im Alice. This is a great s
3、chool, but there are a lot of rules. John: Really? What are some of the rules? Alice: Well, dont be late for the class. This is very important. John: OK, so we must be on time. Can we bring music players to school? Alice: No, we cant. And we always have to wear the school uniform. John: I see. Alice
4、: Oh, and we also have to be quiet in the library.,1. Are there many rules at school? _,Read the conversation in 2d and answer the questions.,Reading,Yes, there are.,2. Can he bring music players to school? _ 3. Do they have to always wear the school uniform? _,No, he cant.,Yes, they do.,Grammar Foc
5、us,阅读 Grammar Focus 部分, 完成下列句子。,in the hallways,1.不要在走廊上乱跑？ Dont run _ ? 2.我们必须准时上课。 We must_for class 3.- 我们可以在教室吃东西吗？ -Can we eat in the classroom? - 不，不可以。但是我们可以在餐厅吃东西。 - No, we _, but we can eat in the _. 4. 他在学校必须要穿校服吗？ _he _wear a uniform at school? 5. 我们在课堂上能戴帽子吗？ _we _in class?,be on time,ca
6、nt dining hall,Does have to,Can wear a hat,dance sing,What,club want join,join chess,4.- 你会做什么事情？ -_can you do ? - 我会跳舞。/我不会唱歌。 -I can _./I cant _. 5.- 你想加入什么俱乐部？ - What _ do you _to_ ? - 我想加入象棋俱乐部。 - I want to_ the _ club.,合 作 探 究,一、祈使句 Eat in the dining hall. Dont run in the hallways. Lets join th
7、e English club. No smoking. No photos. 用法：祈使句一般以_开头，表示请求、命令 劝说、警告等。在祈使句 中，通常省略句子主语_。,动词原形,you,动词原形, 肯定句：_+ 其他 否定句: _ + _+ 其他 以let引导的句子: _+ sb.+动词原形 以No +_或_。表示“禁止、规劝”, Eat in the dining hall. Dont run in the hallways. Lets join the English club. No smoking. No photos.,动词原形,let,Dont,动词-ing,名词,将下面的句子改
8、为祈使句，每空一词。 1. You can come in. _ _, please. 2. I can help you. _ me _ you. 3. You cant eat in class. _ _ in class. 4. You cant be late for school. _ _ late for school. 5. You cant take photos here. _ photos here.,Come in,Let help,Dont eat,Dont be,No,探究二、 have to 和 must 用法 We must be on time for clas
9、s. We have to wear uniforms at school. You mustnt tell him about it.你一定不要告诉他这件事（可能是秘密） You dont have to tell him about it. 你不必告诉他这件事（他可能知道了） Its too late. Kate has to go now. Tom doesnt have to clean his room. 1. 观察例句、，可以得知must 和have to 都属于情态动词，意为_。区别在于：_侧重说话者主观看法，认为有必要或有任务去做某事，而_侧重客观需要，含有不得不或被迫之意。
10、2. 观察例句、，可以看出must的否定形式是_意思是_ 3. have to 的否定形式是_意为_. 观察例句、，得知，_有人称和数的变化。,必须、不得不,must,have to,mustnt,dont have to,不必,绝不，一定不要,have to,即时训练 用must 或have to 的适当形式填空 There is no bus, you _ walk home. I _study English well. Nick_go to school on weekends. You_go through the road when the light is red.,must,h
11、ave to,doesnt have to,mustnt,3a. Write the rules for the school library.,Library Rules,1.,2.,3.,4.,Dont talk.,Dont eat.,Dont listen to music.,Dont take photos.,3b. Use the words to make questions about the rules. Then write answers according to your school.,Be quiet? Q: Does she have to be quiet in
12、the library? (she/have to/in the library)? A: Yes, she does.,Eat? Q:_ (he/have to/in the dining hall)? A:_,Does he have to eat in the dining hall?,Yes, he does.,Listen to music? Q:_ (we/can/in the hallways)? A:_,Wear a hat? Q:_ (we/can/in class)? A:_,Can we listen to music in the hallways?,No, we ca
13、nt.,Can we wear a hat in class?,No, we cant.,We can eat in class. We dont have to come to school every day. ,3c. Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!,At my dream school, we dont have to come to school every day. We ,At my dream school, we dont have to come to school every day. ,We can eat in class. ,Homework,1. 听写P19-20页的新单词 2. 读熟2d-3c,
