Unit10 SectionA GrammarFocus～4c 教学课件2023-2024学年人教版九年级英语全册

Unit 10 You are supposed to shake hands. Section A Grammar Focus ~ 4c 九年级全一册 人教版 Learning Goals Warming Up Grammar Summary Exercises 1 1 2 3 4 5 通过本课的学习，学生能够： ①正确使用be supposed to和be expected to 等句式。 ②学会使用It is important/impolite to do等句式表达建议。 Learning Goals Warming Up Let’s first enjoy a video. Are you familiar with the structure in the video? Let’s read more sentences we’ve learned in this unit. What are you supposed to do when you meet someone for the first time? You’re supposed to shake hands. You’re not supposed to kiss. When were you supposed to arrive? I was supposed to arrive at 7:00. Am I supposed to wear jeans? No, you’re expected to wear a suit and tie. Read these sentences together. Presentation be supposed to 意为“应该……”，相当于 should；be expected to意为“应该……；被期望……”。两者都用来表示根据规定、传统或习惯应该做某事或期待某事发生，两者中的to为不定式符号，后接动词原形。 be supposed to和be expected to的用法 一、be supposed to 的用法 1. 当主语是人时 be supposed to的主语是人时，意为“应该……”，用来表示劝告、建议、责任等。否定形式为be not supposed to do sth. ，意为“不应该做某事”，表示命令或禁止。 Students are supposed to learn both knowledge and basic life skills. 学生们应该学习知识和基本的生活技能。 Children are not supposed to play on the street because it’s really dangerous 孩子们不应该在街上玩耍，因为太危险了。 2. 当主语是事或物时 be supposed to的主语是事或物时，意为“本该；本应”，用于表示某事本应该发生而没有发生。 It is supposed to be an off-season for vegetables , but you seem to have enough here . 按说现在是蔬菜的淡季，可是你们这里供应还不错。 【拓展】(1) be supposed to have done表示“本应该做某事（实际上没做）”，相当于should have done。 He was supposed to have arrived an hour ago. 他本来应该一小时前就到的。 (2) be supposed to还可表示“被认为……；被相信……”。 The dolphins are supposed to be very clever. 人们认为海豚很聪明。 二、be expected to 的用法 be expected to do sth. 意为“应该做某事”或“被期望做某事”，其表达的主观性比be supposed to do sth. 更强。 We are expected to check the papers carefully to avoid some careless mistakes. 我们应该自己检查试卷来避免一些粗心的错误。 Discussion We are supposed to stop the thief from stealing someone’s wallet. What are you supposed to do when you see a thief stealing someone’s wallet? Discussion You are supposed to help to keep the s