Unit 4 Don’t eat in class. 第一课时 Section A (1a-2c) 学案2022-2023学年人教版七年级英语下册

Unit 4 Don’t eat in class. 第一课时 Section A课堂学习（Ⅰ）（1a---2c） 语法----- 全方位透视“祈使句”类型1.概念：一般用来表示请求、命令、劝说、号召、警告等等。在祈使句中，通常省略第二人称主语you。肯定句中以动词原形开头，否定句在动词原形前加don’t。 2. 1). 肯定祈使句: Speak English in English class.Come in, please. 2). 否定祈使句: Don’t eat in class.Don’t talk in class. 祈使句简说 动词原形无主语，婉言用“请”“让”字句；牢牢记住这两点，定能学好祈使句。 1. P型：Please +动词原形+其他 常表示客气的请求，有时please也放在句尾，其前加逗号。如： 请进 Please _____ _____. = _____ ____, please. 请坐 Please _____ _____. = _____ ____, please. 2. L型：Let +宾格代词+动词原形+其他---常表示请求和建议。 如：让我来读吧 _____ _____ read it. 咱们去爬山吧 ______ go to the mountains. 3. V型：V (代表动词原形) +宾语+其他---常用来表达命令。 如：把门关上。 ______ the door. 起立！ ______ up! 4. B型：Be +表语(名词或形容词) +其他---强调表达的内容。 如：做个好学生。 _____ a good student. 安静！ ______ ______! 5. D型：Don’t +动词原形+其他---是否定的祈使句，表示告诉某人不要做某事。 如：不要迟到。 ______ _____ late. 不要在课堂上吃东西。 ______ ______ in class. 6. N型：No +名词或动名词+其他---这种否定的祈使句多用于公共警示语。 如：禁止拍照！ ______ ______! 禁止游泳！ _____ ________! 二、综合小练 ( ) 1. ____ in the school library. A. No talk B. Not talking C. No talking D. Talking ( ) 2. Let’s ___ our school rules. A. talk for B. talk with C. talk to D. talk about ( ) 3. When you are late for class, your teacher often says, “____.” A. Don’t run in the hallways. B. You are not right. C. Don’t arrive late for class again D. You are right. ( ) 4. --- Do you have to wear your sports shoes at school? --- ____ . A. Yes, I have B. No, I haven’t C. Yes, I don’t D. No, I don’t ( ) 5. Linda often helps me ______ English. A. study B. to study C. studying D. studies ( ) 6. I have to go to bed ______ 9 o’clock. A. by      B. to      C. on        D. in ( ) 7. ____ eat in class.  A. Please   B. Please not    C. Not    D. Don’t ( ) 8. Students can’t ___ hats in the classroom. A. put on    B. wear    C. in    D. wearing ( ) 9. My teacher says students can’t ___ music in the classroom. A. hear B. hear to C. listen D. listen to ( ) 10. Wo