初二英语按要求翻译句子，求解答！

Question

用be expected to do或be supposed to do
1、他们应该到一个小时前到这儿
2、在图书馆你应当保持安静
3、我们考试不允许迟到
4、不允许学生们上课吃东西

Answer 1

他们应该到一个小时前到这儿
They are supposed to be here one hour ago。
在图书馆你应当保持安静
You are supposed to be quiet in the library。
3、我们考试不允许迟到
We are supposed to be on time for exames。
4、不允许学生们上课吃东西
Students are expected not to eat on class

be expected to
be supposed to
的区别就是后者的语气更强烈，通常用于规定、法律条文等方面。

Answer 2

1. They were expected to be here one hour ago.
2. You are expected to be quiet in the library.
3. We are not expected to be late for the exam.
4. The students are not expected to eat anything in class.追问

be expected to do和be supposed to do意思上有什么区别吗

追答

一般考试来说的话，是没什么区别，都是“应该做某事”的意思
如果一定要细细区分的话，be supposed to do是被期望或要求,应该.相对于be expected to do
主观性强一些.初中阶段学它相当于should的这个用法
expect在朗文的第一词条即为：预料、期待。
例：They are expected to make an announcement later on today.(预料他们今天晚些时候会宣布一项通告)
再次例句中，be expected to do意为预料，表示一种可能性
再如：She is expected to be a good doctor.（他有希望成为一名好医生)

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