七年级下Unit4第二课时.ppt

Unit 4 Dont eat in class.,Section A Period Two,Objectives,To learn to talk about library rules To learn to ask and answer questions about the rules,Lets play a game! Who knows these signs?,Dont smoke! No smoking!,Dont fight.,Dont listen to music in the classroom!,in the classroom,Dont run in the hallways.,Dont eat in the classroom.,in the classroom,Dont take photos here. No photos!,Please turn right! You can turn right!,Dont take your schoolbags to the library! No schoolbags!,in the library,Dont arrive late for class.,Dont talk in the library! No talking!,in the library,Dont talk loudly in public!,in public (在公共场所),Practice,Can we ? Yes, we can. No, we cant.,eat in class listen to music outside wear hats in school fight in class speak loudly in the library,Library rules 1. Dont talk. 2. _ 3. _ _ 4. _ _,Dont eat.,Write the rules for the school library.,3a,Dont listen to music.,Dont take photos.,Use the words to make questions about the rules. Then write answers according to your school.,3b,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?,No, he doesnt. He can also eat outside.,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 cant.,No, we cant.,What time does the school begin in the morning? When do you have to arrive at school in the morning? As students, what do you have to do in the school?,We have to. We have to arrive at school on time. We have to do homework every day. We have to clean the classroom every day. We have to keep the classroom clean. We have to study hard at all lessons.,What do you have to do at school?,Group work,- Do you have toin the school? - Yes, we do. / No, we dont.,wear school uniforms every day clean the classrooms every day do morning exercises every day do homework every day have classes from Monday to Saturday wear school badge (校徽) every day arrive at school before 7:00am listening to English every day,We have to We have to arrive at school on time. We have to do homework every day. We have to clean the classroom every day. We have to keep the classroom clean. We have to study hard at all lessons.,What else do you have to do at school? We have to,Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!,3c,1. We can eat in class. 2. We dont have to come to school every day. 3. ,Language points,情态动词can的用法 1) 表示能力 “会, 能” Can you play the guitar? 你会弹吉它吗？ Judy can speak a little Chinese. 朱蒂会说一点中文。 I can dance and sing. 我能唱歌又能跳舞。,词语链接,2) 表示允许、许可, “可以”、“能” (在这一课中新学的词义) Can the students run in the hallways? 学生们可以在走廊上跑吗？ We can eat outside. 我们可以在外面吃东西。,注意: 和大部分情态动词一样, can在否定句中, 直接在can后加上not, 在疑问句中, 把can放到主语前面, 并且没有人称和数的变化。,肯定祈使句 Sit down. Come in. Eat at home.,否定祈使句 Dont sit down. Dont come in. Dont eat at home.,Grammar,祈使句是用来表示请求、命令、叮嘱、号召或者劝告等的句子, 这类句子的主语常是第二人称you,也就是听话者,因而you常省去了。祈使句的开头是动词原形。,如: Look out! 小心！ Wait here for me! 在这等我！ Be sure to come here on time! 务必准时来到这里！,Listen to music outside. Dont listen to music outside. Do your homework at school. Dont do your homework at school. Dont look out of the window. 不要向窗外看。,祈使句的否定形式多以do not (常缩写成dont) 开头, 再加上动词原形。,祈使句表示请求、命令、劝说、号召、 警告等。表示委婉的祈使语气，可在句首或句末加上please，若在句末加please，之前要用逗号隔开。祈使句有肯定祈使句与否定祈使句两种。,祈使句的常见句型结构,Grammar,1. 肯定祈使句的常见句型结构： Do型：动词原形+宾语+其他. 如： Open the door, please. Be型：Be+表语. 如：Be a good boy! Let型：Let+宾语+动词原形+其他. (或：Lets+动词原形+其他.) 如： Let me help you. 又如：Lets play tennis.,2. 否定祈使句的常见句型结构： Do型和Be型的否定式：Dont+动词 原形 / be+其他. 如：Dont forget me. 又如：Dont be late. Let型的否定式：Dont+let+宾语+动词原形+其他. (或：Lets+not+动词原形+其他.) 如：Dont let him go back. 又如：Lets not go swimming. 警示语：No+名词 / 动词-ing形式. 如： No talking.,- Can we eat in the classroom? No, we cant, but we can eat in the dining hall. -Can we wear a hat in class? -Yes, we can./No, we cant. Does he have to wear a uniform at school? Yes, he does./ No, he doesnt. What do you have to do? We have to be quiet in the library.,课时重点回顾,Review,用所给单词的适当形式填空。 1. Dont _(listen) to music in the library. 2. Do we have to _(clean) the room every day? 3. You cant _(wear) sunglasses in the classroom. 4. Please _(arrive) at school on time (准时). 5. John is often late for _ (class).,class,listen,clean,wear,arrive,将下面的句子改为祈使句，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