2022年四川統(tǒng)招專升本《大學英語》備考考點一般過去時

　　1.概念：過去某個時間里發(fā)生的動作或狀態(tài);過去習慣性、經(jīng)常性的動作、行為。

　　2.時間狀語：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.基本結構：主語+動詞的過去式或 be 的過去式+名詞

　　4.否定形式：主語+was / were+not+其他;在行為動詞前加didn't，同時還原行為動詞。

　　5.一般疑問句：was 或 were 放于句首;用助動詞 do 的過去式 did 提問，同時還原行為動詞。eg：①She often came to help us in those days.那些天她經(jīng)常來幫助我們。②I didn't know you were so busy.我不知道你這么忙。