使动词与主语一致
动词复制主语：单数事物加 -s，复数事物保持原形。这是一个能纠正所有语法错误四分之一的想法——外加那些容易让人掉进陷阱的词汇。
什么是主谓一致？
一个老板，一个工人
在英语中，主语和动词必须匹配：单数事物加 -s，复数事物保持原形。两个动词——be 和 have——各自有其独特的用法。
单数事物 → 加 -s
he, she, it 在动词上携带 -s
She works in a bank.
复数事物 → 动词原形
I, you, we, they：不加 -s
They work in a bank.
be 是特殊的
am, is, are —— 三种形式
I am ready. She is ready.
have 也是特殊的
have 与 has
I have a car. She has a car.
⚠️ 一个任务，一个老板：动词复制主语。
公式
匹配主语，然后放松
问一个问题：主语是单数还是复数？单数 → 加 -s。复数 → 动词原形。在疑问句和否定句中，助动词负责匹配。
Sheworksin a bank
Theyworkin a bank
Doessheworkhere?
Shehasa car
常见错误
五个需要避开的陷阱
动词上的 -s 是英语中被跳过得最多的字母。这五个陷阱几乎抓住了每一个学习者——包括一些母语人士。
He work in a hospital.
He works in a hospital.
💡 he/she/it 加 -s —— 切勿跳过。
They works hard.
They work hard.
💡 They 是复数 —— 不加 -s。
She have a brother.
She has a brother.
💡 与 he/she/it 搭配时，have 变为 has。
My brother play football.
My brother plays football.
💡 我的兄弟 = he —— 动词加 -s。
Everyone are happy.
Everyone is happy.
💡 everyone, nobody, everything —— 总是单数。
快速测验
测试你刚才学到的内容
三分钟，五道题——检查记住了什么。我们保证没有作文题。
My sister ___ in a hospital.
💡 附加信息2 个部分
完整阵容
一个动词，五个主语
浏览表格：只有he/she/it会改变动词形式。其他所有情况都保持原形。接着be出现，将其三种形式加入其中。
| 主语 | 肯定句 | 否定句 | 疑问句 |
|---|---|---|---|
| I | I work | I don't work | Do I work? |
| You | You work | You don't work | Do you work? |
| He / She / It | He works | He doesn't work | Does he work? |
| We | We work | We don't work | Do we work? |
| They | They work | They don't work | Do they work? |
动词"be"am, is, are——每个主语都有其对应的形式
| 主语 | 肯定句 | 否定句 | 疑问句 |
|---|---|---|---|
| I | I am ready | I'm not ready | Am I ready? |
| He / She / It | She is ready | She isn't ready | Is she ready? |
| You / We / They | They are ready | They aren't ready | Are they ready? |
棘手的主语
关于自身数量说谎的单词
everyone听起来像许多人，但算作一个。money和news是单数。找出那个说谎者，动词遵循事实而非声音。