2016年人教版必修一Unit 4 earthquakes learning about Language 课件(18张)
2016年人教版必修一Unit 4 earthquakes learning about Language 课件(18张)第3页

There be…

There has been a big earthquake. There remain some problems to be solved. There happened to be a tree on the top of the hill. There be 句型中,谓语动词还可以是 appear, seem, happen等.