F-01
Who Is Third Person?
谁算第三人称？💡 概念 Concept
Speakers and listeners: I / we are first person, you is second person. Everyone and everything else — he, she, it, a name, or a thing — is third person. Third person singular means ONE person or thing that is not you or me.说话人与听话人：I / we 是第一人称，you 是第二人称。除此之外——he、she、it、一个人名或一个事物——都是第三人称。第三人称单数指“不是你也不是我”的一个对象。
📐 规则 Rules
第一人称
I, we — the speaker(s)
我、我们——说话人
第二人称
you — the listener
你——听话人
第三人称单数
he, she, it, Anna, my father, the cat, this phone
他、她、它、安娜、我爸爸、那只猫、这部手机
复数
they, Anna and Tom, the cats — 不用 -s
他们、安娜和汤姆、那些猫——复数不加 -s
✏️ 例句 Examples
Anna is my sister. She is ten years old.
安娜是我妹妹。她十岁了。
My father works in a hospital. He is a doctor.
我爸爸在医院工作。他是医生。
Look at the dog. It is very cute!
看那只狗。它非常可爱！
⚠️ 常见错误 Common Mistakes
❌ My mother he is a teacher. → Do not repeat the subject: My mother is a teacher.❌ 不要重复主语：My mother is a teacher.（我妈妈是老师。）
❌ Tom and Anna is my friends. → Two people are plural: Tom and Anna are my friends.❌ 两个人为复数，用 are：Tom and Anna are my friends.（汤姆和安娜是我的朋友。）
F-02
The -s Rule
动词加 -s 规则💡 概念 Concept
In the present simple, he / she / it takes a verb with -s: like → likes, work → works. Watch the spelling: -es after -s, -sh, -ch, -o, -x; consonant + y changes to -ies. And have becomes has.一般现在时中，he / she / it 后面的动词要加 -s：like → likes、work → works。注意拼写：-s、-sh、-ch、-o、-x 结尾加 -es；辅音 + y 变 -ies。have 要变成 has。
📐 规则 Rules
一般加 -s
like → likes; work → works; play → plays
喜欢→likes；工作→works；玩→plays
加 -es
go → goes; watch → watches; wash → washes; fix → fixes; do → does
去→goes；看→watches；洗→washes；修理→fixes；做→does
辅音 + y
study → studies; carry → carries（但 play → plays，元音+y 加 s）
学习→studies；搬运→carries（但 play→plays，元音+y 只加 s）
have → has
She has a cat. He has two brothers.
她有一只猫。他有两个兄弟。
✏️ 例句 Examples
She works at a big hospital.
她在一家大医院工作。
He watches TV after dinner.
他晚饭后看电视。
My father studies Chinese every evening.
我爸爸每天晚上学中文。
⚠️ 常见错误 Common Mistakes
❌ He go to school by bus. → He goes to school by bus.❌ he 后面动词要加 -es：He goes to school by bus.（他坐公交上学。）
❌ She watch movies on weekends. → She watches movies on weekends.❌ watch 结尾 ch，加 es：She watches movies on weekends.（她周末看电影。）
❌ My brother have a bike. → My brother has a bike.❌ 第三人称单数用 has：My brother has a bike.（我弟弟有一辆自行车。）
F-03
Be and Have
be 与 have 的变化💡 概念 Concept
The verb be has special forms: I am, he / she / it is, you / we / they are. Have also changes: he / she / it has. These are the most common verbs in English — get them right and your sentences sound natural.be 动词有特殊形式：I am，he / she / it is，you / we / they are。have 也会变化：he / she / it 用 has。这是英语中最常用的动词，用对它们句子才自然。
📐 规则 Rules
I → am
I am a student.
我是学生。
he / she / it → is
She is a nurse. It is sunny today.
她是护士。今天阳光明媚。
you / we / they → are
You are welcome. We are classmates.
不客气。我们是同学。
have → has
He has a new phone. Anna has long hair.
他有一部新手机。安娜有一头长发。
✏️ 例句 Examples
My mother is a doctor and my father is an engineer.
我妈妈是医生，我爸爸是工程师。
It is very cold today.
今天很冷。
She has a lovely little dog.
她有一只可爱的小狗。
⚠️ 常见错误 Common Mistakes
❌ She are very happy. → She is very happy.❌ she 配 is：She is very happy.（她非常开心。）
❌ He have a car. → He has a car.❌ 第三人称单数用 has：He has a car.（他有一辆车。）
❌ Anna is my friend and I am is her classmate. → Say: … and I am her classmate.❌ 一个主语配一个 be 动词即可：and I am her classmate。（而我是她的同班同学。）
F-04
Negatives & Questions
否定句与疑问句💡 概念 Concept
To make negatives and questions with he / she / it, use does or doesn't + the base verb (no -s). The -s travels onto does: She likes tea → She doesn't like tea → Does she like tea? Short answers: Yes, she does. / No, he doesn't.he / she / it 的否定句和疑问句要用 does / doesn't + 动词原形（不加 -s）。-s 跑到 does 上：She likes tea → She doesn't like tea → Does she like tea? 简短回答：Yes, she does.（是的。）/ No, he doesn't.（不。）
📐 规则 Rules
否定
doesn't + 原形：She doesn't like coffee.
doesn't + 动词原形：她不喜欢咖啡。
疑问
Does + 主语 + 原形？Does he live here?
Does + 主语 + 动词原形？他住在这里吗？
原形回归
Main verb loses its -s: likes → like
主要动词去掉 -s：likes 变回 like
简短回答
Yes, she does. / No, he doesn't.
是的，她喜欢。/ 不，他不。
✏️ 例句 Examples
He doesn't play football on Mondays.
他周一不踢足球。
Does your mother speak English?
你妈妈会说英语吗？
No, she doesn't, but she is learning it now.
不，她不会，但她现在正在学。
⚠️ 常见错误 Common Mistakes
❌ She doesn't likes coffee. → The main verb goes back to base form: She doesn't like coffee.❌ doesn't 后面用动词原形：She doesn't like coffee.（她不喜欢咖啡。）
❌ Does he works here? → Does he work here?❌ does 后面的动词不加 -s：Does he work here?（他在这里工作吗？）
❌ He don't like tea. → He doesn't like tea.❌ he 用 doesn't，不用 don't：He doesn't like tea.（他不喜欢茶。）