會寫否定句
把 be 動詞句和一般動詞句改成否定句。
21 Days Grammar
否定句與 Yes/No 問句
今天把打底期收尾。你要學會把肯定句變成否定句，也學會怎麼問可以用 yes 或 no 回答的問題。這一步一通，英文互動能力會往前很多。
學
今天學習目標
會寫 Yes/No 問句
知道 be 動詞句和一般動詞句的問法不同。
分辨 do / does
避免問句和否定句時把動詞形態用錯。
1
白話解釋
如果原本是 be 動詞句，通常把 not 加進去，或把 be 動詞移到前面就能變問句。
如果原本是一般動詞句，則常要用 do / does 幫忙。
快速對照
She is tired. → She is not tired. → Is she tired?
He plays tennis. → He does not play tennis. → Does he play tennis?
2
核心句型
be 動詞句否定：主詞 + am / is / are not ...
I am not busy. / They are not late.
be 動詞句問句：Am / Is / Are + 主詞 ... ?
Are you ready? / Is Tom at home?
一般動詞句否定：主詞 + do not / does not + 原形動詞
We do not watch TV. / She does not like math.
一般動詞句問句：Do / Does + 主詞 + 原形動詞 ... ?
Do you play basketball? / Does Amy walk to school?
3
生活例句
- I am not sleepy. 我不睏。
- Are they in the classroom? 他們在教室裡嗎？
- We do not eat breakfast at school. 我們不在學校吃早餐。
- Does your sister like cats? 你姊姊喜歡貓嗎？
- Is the movie interesting? 這部電影有趣嗎？
4
常見錯誤
錯誤 1：一般動詞否定句忘記 do / does
She not like coffee.
She does not like coffee.
一般動詞句否定時，常需要 do / does 幫忙。
錯誤 2：問句裡動詞沒有回原形
Does he plays baseball?
Does he play baseball?
有 does 時，後面的動詞用原形。
錯誤 3：be 動詞問句忘記把 be 動詞移前面
She is busy?
Is she busy?
be 動詞問句常把 be 動詞放到句首。
5
小練習
- 把句子改成否定：He likes milk.
- 把句子改成問句：They are at home.
- 把句子改成問句：You play the piano.
- 改正：She doesn't goes to school by bike.
- 改正：Are you like this song?
答
答案與解析
- He does not like milk.
解析：一般動詞句的否定要用 does not，like 回原形。
- Are they at home?
解析：be 動詞問句把 are 放到前面。
- Do you play the piano?
解析：一般動詞句的 Yes/No 問句用 do 開頭。
- She doesn't go to school by bike.
解析：doesn't 後面的 go 要回原形。
- Do you like this song?
解析：like 是一般動詞，問句要用 do，不是 are。
導