精选优质文档-倾情为你奉上Unit12 We are supposed to shake hands.一Phrases:1. be supposed to do .应该(=should, ought to ,be supposed to)2. shake hands握手3. You should have asked what you were supposed to wear.你本应该问清楚怎么样穿才得体。中的“should have asked”是“情态动词现在完成时”表示过去本应该做某事，事实上没有做如：She should have gone to Beijing. 她本应该去了北京。（没有去）4. be relaxed about sth.对某事随意、不严格如：They are relaxed about the time. 他们对时间很随意。5. pretty adv. 相当,很veryShe is pretty friendly. 她相当友好。adj. 美丽的 She is a pret
