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牛仔褲嗎? 不應(yīng)該 , 希望你穿西服打領(lǐng)帶。 ____ I ________ __ wear jeans? No, you ___ ________ __ wear a suit and tie.Am supposed to are expected to 6. 讓別人一直等待不禮貌嗎? 對 , 讓別人一直等很不禮貌。 __ __ ________ to keep others waiting? Yes, it’s very impolite to keep others waiting.7. 準(zhǔn)時很重要嗎? 是的 , 準(zhǔn)時是很重要。 Is __ _________ __ __ on time? Yes, it’s important to be on time. it important to be Is it impolite 1. be supposed to do sth. 意為 “(按規(guī)定、習(xí)慣、安排等 )應(yīng)該做某事 , 可用來表示勸告、建議、義務(wù)、責(zé)任等 , 相當(dāng)于 should的用法。否定形式為 “be not supposed to do sth.” , 表示不該或禁止做的事情。 . If you want to eat icecream, you are supposed to ask your mum. 如果你想吃冰淇淋,應(yīng)該先問問你 媽媽。 2. be expected to do sth. 表達(dá) “被期許 (預(yù)期 )會做某事 , 希望做某事 , 表示一種可能性。. She was expected to arrive before dinner. 希望她晚餐前到達(dá)。be supposed to do相對于 be expected to do主觀性更強(qiáng)一些。3. It be + adj. +to do sth. It be important to do sth. … 做某事很重要 . It i