過去式的結構
過去式的結構：肯定句：主語＋be動詞（was，were）＋其他；否定句：在動詞後面加上not；疑問句: Be動詞(Was/Were)＋主語＋其他。
(1)肯定句: 主語＋be動詞(was，were)＋其他
---She was a student two years ago.兩年前她是一個學生.
否定句: 主語＋be not(was not, were not)＋其他
---She was not a student two years ago.兩年前她不是一個學生.
疑問句: Be動詞(Was/Were)＋主語＋其他
---Was she a student two years ago?兩年前她是一個學生嗎?
(2)肯定句: 主語＋動詞的過去式＋其他
---She ate three apples yesterday.昨天她吃了三個蘋果.
否定句: 主語＋did not＋動詞原型＋其他
---She did not eat three apples yesterday.昨天她沒吃三個蘋果.
疑問句: Did＋主語＋動詞原型＋其他
---Did she eat three apples yesterday?昨天她吃了三個蘋果嗎?
注意:wasn't 是 was not 的縮寫n't 是 were not 的縮寫't 是did not 的縮寫.
常用的時間狀語:
yesterday昨天 two days ago,three days ago(兩年前,三年前)等等.
long ago很久以前 last + week(year, night, month…)上一週,去年,昨晚,上個月等等.
in 1989,in 2008等等.
a moment ago 剛纔,just now 剛纔.
