B2
S + be supposed to + V0 · S + was supposed to + V0
be supposed to
讲解
表示被期望或按规定应该做的事，常暗示现实并非如此。用于过去时，was supposed to 几乎总是暗示那件事并没有发生。 常见陷阱：supposed 后面一定要有 to：You are supposed wear ✗, You are supposed to wear ✓。
例句
You are supposed to wear a helmet.
你应该戴头盔。
The train was supposed to leave at six.
火车本应在六点出发。
I am supposed to be working now.
我现在应该在工作。
This is not supposed to happen.
这种事本不该发生。
练习
通过选择题测试你的掌握程度
高效学习“S + be supposed to + V0 · S + was supposed to + V0”
语法点“S + be supposed to + V0 · S + was supposed to + V0”（be supposed to）是 CEFR 4 级别的重要结构之一。要熟练运用这个结构，你需要弄清楚它的使用语境，并经常练习。
学习小贴士：把例句大声朗读多遍，培养自然的语感反应。然后试着结合自己的生活情境造句。用发音按钮听标准发音并跟着练习。
你也可以查看完整课程“”，更深入地了解相关的语法和词汇。