七年级下册英语 Unit4 SectionA 1a-1c （人教版）

Section A 1a-1c Unit 4 Don’t eat in class. Unit 4 Don’t eat in class. Warming up Warming up —Can you...? —Yes, I can./No, I can’t. can 表示能力 Warming up Warming up —Can you...? —Yes, I can./No, I can’t. can 表示能力 guitar violin guitar Language points 情态动词 can 1. 表示能力：“会，可以，能，能够” 2. 不能单独作谓语，后必须接动词原形一起构成谓语 3. 没有人称的数的变化 4. 否定形式加not: can not,cannot, 或缩写can't疑问句can 提前。 例： She can play the guitar. Can she play the guitar? Can we eat in the classroom? No, we can’t. Can we eat in the dining hall? Yes, we can. Don’t eat in the classrooms. Don’t eat in the classrooms. Don’t+动词原形+其他 为祈使句的否定形式， 表示“不允许做某事” You must eat in the dining hall. You must eat in the dining hall. must+动词原形+其他 表示“必须做某事” What do the signs mean? rules Don’t litter No smoking No music Keep silence No mobile phones No eating or drinking /ruːl/ n. Read the school rules in the picture. Pre-listening SCHOOL RULES 1. Don’t arrive late for class. You must be on time. 2. Don’t run in the hallways. 3. Don’t eat in the classroom. You must eat in the dining hall. 4. Don’t listen to music in class. 5. Don’t fight. Don’t arrive late for class. You must be on time. late for class 上课迟到 be on time. 准时 Don’t run in the hallways. run in the hallways. 在走廊里跑 Don’t eat in the classroom. You must eat in the dining hall. dining hall 餐厅 Don’t listen to music in class. listen to 听…… Don’t fight. hallway be on time fight arrive must don’t listen to dinning hall rule Read the words and phrases before they are disappearing. 1a 1 2 3 4 5 SCHOOL RULES 1. Don’t arrive late for class. You must be on time. 2. Don’t run in the hallways. 3. Don’t eat in the classroom. You must eat in the dining hall. 4. Don’t listen to music in class. 5. Don’t fight. Which rules are these students breaking? Write the number of the rule next to the student. 1. Don’t arrive late for class. 上课不要迟到。(教材P19 1a) 【用法详解】arrive是不及物动词，具体用法如下： 若接地点名 词，要加介词in或at。 in后接大地方(如城市或国家)。 When did you arrive in Dalia