Unit10SectionA(Grammar Focus-4c) 课件 2023-2024学年人教版英语九年级全册

Unit 10 You’re supposed to shake hands. Section A 3 (Grammar Focus-4c) To talk about customs and what you’re supposed to do. To learn the following grammar： be supposed/expected to + infinitive It is + adj. + infinitive Learning objectives Lead in As students, what should we do at this time? We are supposed to stay at home. We are not supposed to go anywhere full of people. As students, what should we do? We are supposed to go on studying at home. We are supposed to exercise every day. We are supposed to stay at home. We are not supposed to go anywhere full of people. We are supposed to go on studying at home. We are supposed to exercise every day. 请观察下列句子，找出共同点 be supposed to do 应该做…… be not supposed to do 不应该做…… 句型结构 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. Is it impolite to keep others waiting? Yes, it’s very impolite to keep others waiting. Is it important to be on time? Yes, it’s important to be on time. Grammar Focus Presentation be supposed to + infinitive be expected to + infinitive be supposed to的用法 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。 e.g. We’re supposed to spread positive energy everywhere we go. 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。 e.g. The meeting was supposed to take place on Tuesday, but we’ve had to put it off. be supposed to的否定用法 否定形式：be not supposed to do sth. ，相当于be not allowed to do sth., 意为“不应该做某事”。 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. You are supposed to have done your homework. 2) be supposed to还可表示“被认为……；被相信……”。 The dolphins are supposed to be very clever. be supposed to do sth. 意为“应该做……,某人被期望做……”，相当于 should； be expected to do sth.意为“应该……；被期望……” 两者都用来表示根据规定或传统习惯应该做某事或期待某事发生，两者中的to为不定式