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Study in the app →English · CEFR Band 1 (A1) · Chapter 8
He's a teacher 他是老师
可数单数名词前需要冠词：辅音音前用 a，元音音前用 an（a student / an office worker）。很多语言没有冠词，所以这是最常见的错误。学习职业词汇（student, teacher, doctor, office worker）和 man·woman。
Dialogue
He's a Teacher — 他是老师
- Emma Minsu, who is he? 民秀，他是谁？
- Minsu He is teacher. 他是老师。（错误：漏了 a）
- Emma He is a teacher. You need "a", Minsu. 是 He is a teacher。你需要 "a"，民秀。
- Minsu Ah, he is a teacher. And she is a doctor! 啊，他是老师。还有她是医生！
Dialogue
A or An? — 用 a 还是 an？
- Jack Is your mother a office worker? 你母亲是公司职员吗？（故意用错的 a）
- Minsu An office worker. "Office" is a vowel sound! 是 An office worker。"office" 是元音音！
- Jack Good. You have a teacher in you. 不错。你身上有当老师的潜质。
- Minsu Thank you! I like English. 谢谢！我喜欢英语。
Vocabulary
- student
-
noun 学生
- teacher
-
noun 老师
- doctor
-
noun 医生
- office worker
-
noun 公司职员
- man
-
noun 男人
- woman
-
noun 女人
- a
-
art. （不定冠词）——辅音音前
- an
-
art. （不定冠词）——元音音前
- the
-
art. （定冠词）——特定的事物
- do
-
verb 做
- like
-
verb 喜欢
Grammar
冠词 a / an
Explanation
英语在可数单数名词前加一个小词——冠词。辅音音前用 "a"（a student, a teacher），元音音前用 "an"（an office worker, an apple）。它跟随读音，而不是字母。特定且已知的事物用 "the"（the doctor here）。很多语言没有冠词，所以容易漏掉——但 "He is teacher" 是错的，要说 "He is a teacher"。
Examples
- He's a teacher. She's a doctor. 他是老师。她是医生。
- She's an office worker. 她是公司职员。（元音音前 → an）
- I'm a student. The doctor is here. 我是学生。那位医生在这里。
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