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1、初中英语知识点精讲课程besupposedto情境导入Everyone is supposed to look after their old parents.The train was supposed to arrive an hour ago.You are supposed to have cleaned your room.知识讲解一. be supposed to 的用法e.g. I am supposed to start work at 7:30 every morning. 1. 主语为人, + V原形，意为“应该；被期望”(劝告、建议、义务、责任等)。e.g. The tr
2、ain was supposed to arrive ten minutes ago.2. 主语为物， + V原形，意为“本应；本该”(某事本该发生却没发生)。知识讲解e.g. Tom, you are supposed to have cleaned your room.3. be supposed to + have done“本应该完成某事却没有”4. 否定结构： be not supposed to“不被许可，不应当”e.g. You are not supposed to go when the light is red.知识讲解二. be supposed to 与 be expe
3、cted to 的区别e.g. They are expected to make a plan today. He is expected to be a good doctor. be expected to do sth. 预料/被期望做；表示一种可能性。be supposed to do sth. 应该，有义务做；They are expected to arrive at eight. 期待他们八点钟到达。They are supposed to arrive at eight.他们应该八点钟到达。试比较：be supposed to do sth. 语气更强即学即练1. Stude
4、nts are supposed _ the school rules. A. follow B. following C. to follow D. to following C即学即练2. She was supposed _ the table, but she didnt. A. to cleaning B. clean C. cleaning D. to have cleaned D课堂小结一. be supposed to 的用法1. 主语为人, 表示“应该；被期望”2. 主语为物，表示“本应；本该”3. be supposed to + have done“本应该完成某事却没有”4. 否定结构： be not supposed to“不被许可，不应当”二. be supposed to 与 be expected to 的区别
