Unit 10You’re supposed to shake hands.Section A Grammar Focus-4c九年级（全）objectivessupposed to + infinitiveexpected to + infinitiveIt is + adj. + infinitivepassportclean… offchalkblackboardnortherncoastn. 护照把……擦掉n. 粉笔n. 黑板adj. 北的；北部的n. 海岸；海滨Words and Expressionsseasonknockeasterntake offworthmannern. 季；季节v. 敲；敲击 n. 敲击声；敲击adj. 东的；东部的脱下；起飞adj. 值得；有……价值n. 式；法；pl. 礼貌；礼节Words and ExpressionsWhat are you supposed to do when you see a thief stealing someone’s wallet?What are you supposed to do when you find rubbish everywhere?What are you supposed to do when someone asks you the way? What are you supposed to do when your classmate is ill or hurt in hospital?Grammar FocusGrammar Focussupposed 与 think 的含义相同, “认为,以为” .be supposed 表示 “被期望或要求应该”, 在口语中,意为 “不容,不应当” .be supposed + to infinitives动词不定式eg. You are supposed to arrive on time. Grammar Focusbe supposed to的用法 be supposed to do sth相当 should do sth 或者是be expected to do sth.人称,时态和句式体现在be的变化上，to为不定式符号后接动词原形。句式：1)肯定句： be supposed to do sth2)否定句：be not supposed to do sth 相当shouldn’t do sth. 或 be not allow to do sth.意为“不应当做某事；不被允做某事”。You a |
