一般過(guò)去時(shí)

1.概念：過(guò)去某個(gè)時(shí)間里發(fā)生的動(dòng)作或狀態(tài)；過(guò)去習(xí)慣性、經(jīng)常性的動(dòng)作、行為。

2.時(shí)間狀語(yǔ)：ago, yesterday, the day before yesterday, last week, last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.

3.基本結(jié)構(gòu)：be動(dòng)詞；行為動(dòng)詞 的過(guò)去式

4.否定形式：主語(yǔ)+was/were +not+其他;在行為動(dòng)詞前加didn't，同時(shí)還原行為動(dòng)詞。

5.一般疑問(wèn)句：was或were放于句首；用助動(dòng)詞do的過(guò)去式did 提問(wèn)，同時(shí)還原行為動(dòng)詞。

6.例句：She often came to help us in those days.

? ? ? ? ? ? I didn't know you were so busy.