Unit 10 Youre supposed to shake hands. 单元易错清 【 精析 】 be supposed to意 为 “应该 ”， 后接 动词 原形， be有人称、数 和 时态 的 变 化， 通常用来表示 劝 告、建 议 、 义务 和 责 任等， 相当于情 态动词 should。 【 精 练 】 ( )1.Youre supposed _something happy and lucky to others on New Years Day. A say B to say C saying D to saying B 2 I think you should tell him about it. (改 为 同 义 句 ) I think you _to tell him about it. 3你不 应该 将 书带 出 阅览 室。 (汉译 英 ) You _to take the books out of the reading room. are supposed arent supposed 【 精析 】 be used to do意 为 “被用来做 ”， 是
