Unit4 SectionA(Grammar Focus-3c) 课件 2023-2024学年人教版七年级英语下册

新目标(Go for it)版七年级下册 SectionA(Grammar Focus-3c) Unit 4 Don't eat in class. Let’s play a game Mine sweeping in class in the dining hall in the hallways wear the school uniform must wear a hat a lot of school rules have to fight with sb. listen to music be on time 在走廊上 听音乐 在餐厅 在课堂上 和某人打架 准时 戴帽子 必须 不得不 许多 校规 穿校服 Rule 1: Don’t fight. Rule 2: Don’t eat in the classroom. Rule 3: Don’t listen to music in class. Rule 4: Don’t arrive/be late for class. Rule 5: Don’t run in the hallways. Rule 6: Don’t wear a hat in class. Let’s read and learn 1.什么是祈使句？ 表达命令,请求,劝告,警告,禁止等的句子。 2. 祈使句的特点: ①省略______; ②开头多为动词________。 主语（第二人称you） 原形 探究一 ：祈使句 肯定句 1. Sit down, please！ 2. Please call Mrs. Miller. 1. Be quiet, please！ 2. Be on time at school. 1. Let’s join the art club. 2. Let’s paly basketball. Do型 Be型 Let型 否定句 1. Don’t be late. 2. Don’t run in the hallways. 3. Don’t let her go. 1. No photos. =Don’t take photos 2. No talking. 禁止 Don’t型 No型 动词原形+其他 Be+其他 Let sb. do+其他 Don’t be+其他 Don’t do+其他 Don’t let sb do. No+v-ing. No+n. have to 1. 肯定句：主语+__________+___________. 2. 否定句：主语+ _____________ have to+__________. 3. 一般疑问句：_______+ 主语+ have to+__________? Yes, 主语+_________./No, 主语+____________. do/does don’t/doesn’t have/has to 动词原形 动词原形 动词原形 Do/Does don’t/doesn’t 如：What do you have to do? We have to be quiet in the library. Do you have to be quiet in the library? Yes, we do. / No.we don’t. 如：What does she have to wear at school? She has to wear a school uniform at school? Does she have to wear a uniform at school? Yes, she does. /No,she doesn’t. Language Points 情态动词have to与must 二者均可表示“必须”，其后均接动词原形。 如：太晚了，我必须乘出租车。 It’s too late. I have to take a taxi. I must go now. 我必须现在就走。 Language Points It's very hot outside. You have to wear a hat. He has to live at school because his home is far away from school. We must be on time. 我们必须准时。 have to 表示客观条件要求某人不得不做某事 must