supposed用法,be supposed to和should有什么区别？ _生活知识

be　supposed　to do sth被期望做某事，应该做某事。
法
①be supposed to... 意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should 。
例：Everyone is supposed to wear a seat-belt in the car.每个人在汽车里都应该系安全带。
Teachers are supposed to treat all the students alike.老师应该对所有的学生一视同仁。
He is supposed to have arrived an hour ago.他应该一小时前就到了。
②be supposed to... 的否定结构为be not supposed to...,它常用于口语中，意为“不被许可；不应当” 。
例：She was not supposed to be angry about that.她本不该为那件事而生气的。
You are not supposed to smoke on the bus.你不应该在公共汽车上吸烟。
You are not supposed to take photos in the hall. 你可不能在大厅里拍照.

文章插图
be supposed to和should有什么区别？
should 是口语中常用的情态动词,当你给别人建议时，你认为应该，可以用SHOULD. be supposed to 应该, 应该如此, 被期望,是别人认为应该。如：1）I should be there at 9.2) I am supposed to be there at 9.
【supposed用法,be supposed to和should有什么区别？】这两句话都意味着someone thinks it is important for you to be there at 9.但它们的区别是第一句话是我认为9点到达很重要，而第二句话是别人（而不是我）认为9点到达很重要。例如我的老板明天开会，要我准时到达。