理解用途
知道過去式是在說已經完成的過去事件。
21 Days Grammar
過去式
今天開始處理時間線。當事情發生在昨天、上週、去年，或已經結束的某個時間點，就常會用過去式。你先抓住「現在不是重點，已經發生完了」這個感覺就好。
學
今天學習目標
認識動詞變化
知道規則動詞常加 ed，也有不規則變化。
會用 did
知道否定句和問句常需要 did 幫忙。
1
白話解釋
過去式是在說一件事已經發生完了。當你看到 yesterday、last night、last year 這種時間線索時，通常就要往過去式想。
抓感覺
I watch TV every night. 這是習慣，現在簡單式。
I watched TV last night. 這是昨晚發生的事，過去式。
2
核心句型
主詞 + 過去式動詞
I visited my aunt yesterday. / She studied at home.
主詞 + did not + 原形動詞
We did not play basketball. / He did not call me.
Did + 主詞 + 原形動詞 ... ?
Did you see Tom? / Did Amy finish her homework?
3
生活例句
- I walked to school yesterday. 我昨天走路上學。
- My mom cooked dinner last night. 我媽媽昨晚煮晚餐。
- We watched a movie on Saturday. 我們星期六看了一部電影。
- Tom went to Taipei last week. Tom 上週去了台北。
- They did not stay at home. 他們沒有待在家裡。
4
常見錯誤
錯誤 1：過去時間還用現在式
I watch TV last night.
I watched TV last night.
last night 是過去時間，要用過去式。
錯誤 2：用了 did 後動詞還變過去式
Did you went home?
Did you go home?
did 後面要用原形動詞。
錯誤 3：否定句把 didn't 和過去式混在一起
She didn't studied.
She didn't study.
didn't 後面的動詞要回原形。
5
小練習
- 改正：We play soccer yesterday.
- 改正：Did Amy cooked dinner?
- 改正：He didn't went to school.
- 完成句子：I ___ my grandma last Sunday.（visit / visited）
- 完成句子：Did they ___ the game?（win / won）
答
答案與解析
- We played soccer yesterday.
解析：yesterday 是過去時間，要用 played。
- Did Amy cook dinner?
解析：Did 後面的 cook 要用原形。
- He didn't go to school.
解析：didn't 後面的 go 要回原形。
- visited.
解析：last Sunday 表示過去時間，用 visited。
- win.
解析：Did 後面的動詞用原形 win。
導