如果主語是第三人稱單數時，動詞必須用第三人稱單數形式，我給大家總結了動詞第三人稱單數的變化規則，有需要記得收藏哦。熟悉掌握了這些變化規則，在應用英文時就不用擔心使用錯誤的動詞形式了。
| 規則 | 示例 |
| 1.一般情況加s | run-runs,swim-swims |
| 2.以s,x,o,ch,sh結尾加es | wash-washes,go-goes |
| 3.以輔音字母加y結尾，改y為i再加es (注意：元音字母+y結尾，加s） | study-studies,try-tries play-plays,stay-stays |
| 4. 特殊情況（不規則變化） | have-has,be-is |
1. 大部分實義單詞可以直接在動詞後:+s
例：like — likes
play — plays
work–works
read–reads
write–writes
She likes cola.
發音規則：
所加的“s”
在「有聲音/voiced sound」的輔音後，發音為【s】，works
在「無聲音/unvoiced sound」的輔音後，發音為【z】， plays
在 d 後與 s 一起發音為 【dz】，reads
在 t 後與 s 一起發音為 【ts】，writes
（說明：發音時聲帶振動的音稱為「有聲音/voiced sound」，常見的有：
[b] 、[d] 、[g] 、[v] 、[z] 、[ʒ]、 [e]、 [dʒ] 、[dr] 、[dz]、[m] 、[n] 、[ŋ]、 [l] 、[r] 、[w] 和[j]）
發音時聲帶不振動的音稱為「無聲音/unvoiced sound」，常見的有：
[p] 、[t] 、[k] 、[f] 、[s] 、[ʃ] 、[θ]、 [h]、 [tʃ] 、[tr] 和[ts] ）
注意：特殊情況需要特別記憶。記住了特殊的變化規則，其他實義動詞可在動詞後直接+s。
2. 以o, s, x, sh, ch, 結尾的動詞:+es
例： watch — watches
brush– brushes
wash–washes
He watches TV every day.
go — goes
do — does
發音規則：
在s, x, sh, ch詞尾加的“es”的，發音【iz】
在o詞尾加的“es”，發音【z】，does
3. 以輔音 +y 結尾的動詞: 變 y 為 i+es
例：fly — flies
study — studies
carry–carries
He studies very hard.
發音規則：
詞尾加的“es”，發音為【iz】，carries
4. 不規則變化
have-has
I have some milk.
He has some milk.
be動詞的第三人稱單數形式是is，發音為【iz】
She is a nurse.
He is a doctor.
It is under the bed.
在阿卡索學英文的孩子有個共同的感受，除了總結動詞第三人稱單數的變化規則，外籍老師在上課時會通過遊戲的形式，幫助他們記憶特殊的變化規則，讓他們留下更深刻的印象。通過單元複習、一對一糾正發音，不僅讓他們熟悉動詞的變化規則，也能通過每天的對話，強化動詞不同形式的發音，從而對動詞的變化規則、發音技巧更加熟練，起到強化記憶的作用，所以很多孩子在多次的對話訓練之後對動詞的變化規則記憶深刻。
【考考你】練習題：
一、寫出下列動詞的三單形式。
1. play_____ brush_____ say_____
2. stop_____ fix_____ live_____
3. take_____ run_____ enjoy_____
4. do_____ get_____ watch_____
5. have_____ work_____ go_____
6. cook_____ make_____ sing_____
7. study_____ fly_____ teach_____
8. sit_____ like_____ dance_____
9. look_____ draw_____ grow_____
10. kiss_____ buy_____ want_____
二、用所給詞的適當形式填空。
1. We often _____(play) in the playground.
2. He _____ (get) up at six o’clock.
3. Mike sometimes _____(go) to the park with his sister.
4. He often _____(have)dinner at home.
5. Mike _____(like) cooking.
6. Mrs White_____(teach) us English.
7. Mary usually _____(get) up at seven in the morning.
8. I often _____ (take) a shower at nine.9. Your brother often _____(brush) his teeth at noon.
10.My parents always ___(read)books after lunch.、
參考答案：
一、寫出下列動詞的三單形式。
1.plays brushes says 2. stops fixes lives 3. takes runs enjoys 4. does gets watches 5. has works goes 6. cooks makes sings 7. studies flies teaches 8. sits likes dances 9. looks draws grows 10. kisses buys wants
二、用所給詞的適當形式填空。
1. We often play (play) in the playground.
2. He gets (get) up at six o’clock.
3. Mike sometimes goes (go) to the park with his sister.
4. He often has (have)dinner at home.
5. Mike likes (like) cooking.
6. Mrs White teaches (teach) us English.
7. Mary usually gets (get) up at seven in the morning.
8. I often take (take) a shower at nine.9. Your brother often brushes (brush) his teeth at noon.
10.My parents always read (read)books after lunch.
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