先確認這一區要練什麼
一般現在式中，第三人稱單數主詞通常讓一般動詞加 -s 或 -es；I、you 與複數主詞使用原形。be 動詞則依主詞選 am/is/are。A and B 通常視為複數；each、every 加單數名詞時通常視為單數。
主詞動詞一致最常失分的四個地方
先找核心主詞
The students in my class are friendly。真正主詞是 students，不是 class。
第三人稱單數要變動詞
My sister walks to school every day；不能因句子很長就漏掉 -s。
and 通常形成複數
Tom and Amy play tennis after school，兩個人合在一起是複數主詞。
each／every 通常搭單數
Every student has a book；student 雖代表多人中的每一位，文法上仍用單數。
主詞動詞一致 5 題快速練習
1. My brother ___ basketball every Saturday.
- A. play
- B. plays
- C. playing
- D. played
查看答案與解析
答案：B. plays
My brother 是第三人稱單數，且為一般現在式，所以 play 加 -s。
2. The boys in this classroom ___ very quiet today.
- A. is
- B. are
- C. am
- D. be
查看答案與解析
答案：B. are
核心主詞是 The boys，為複數；in this classroom 只是補充位置。
3. Jenny and her cousin ___ to the library after school.
- A. goes
- B. go
- C. going
- D. is go
查看答案與解析
答案：B. go
Jenny and her cousin 是兩個人，視為複數主詞，現在式用 go。
4. Every student ___ a school ID card.
- A. have
- B. has
- C. having
- D. are having
查看答案與解析
答案：B. has
Every + 單數名詞通常視為單數，因此使用 has。
5. Which sentence is correct?
- A. My friends likes music.
- B. My friend like music.
- C. My friend likes music.
- D. My friend liking music.
查看答案與解析
答案：C. My friend likes music.
My friend 是第三人稱單數，因此一般現在式動詞使用 likes。
直接照這個順序開始
練習時注意
- 不要用離動詞最近的名詞猜單複數，要找真正主詞。
- 一般現在式第三人稱單數通常要加 -s／-es。
- and 連接兩個不同主詞時通常視為複數。