shì zì jù
The 是 sentence ("是"字句)
是 works like an equals sign: A 是 B means 'A is B.' Use it to identify people, things, or relationships. The pattern A 是 adjective 的 highlights a specific feature. Never use 是 before a plain adjective — use 很 instead.
核心例句
他是我的老师，这是他的书，这朵花是白的——是 就像等号，把两件事连起来！
Tā shì wǒ de lǎoshī, zhè shì tā de shū, zhè duǒ huā shì bái de — shì jiù xiàng děnghào, bǎ liǎng jiàn shì lián qǐlái!
He is my teacher, this is his book, this flower is white — 是 works like an equals sign, connecting two things together!
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HSK 1
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2 个结构
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10 个练习
课程摘要
是 works like an equals sign: A 是 B means 'A is B.' Use it to identify people, things, or relationships. The pattern A 是 adjective 的 highlights a specific feature. Never use 是 before a plain adjective — use 很 instead.
The 是 sentence (是字句) is used to establish identity or classification: A equals B, or A belongs to category B. It is one of the first sentence types a learner must master.
Core usage: 1. A + 是 + B (noun): identity or classification — 他是老师 (He is a teacher), 这是我的书 (This is my book), 我是中国人 (I am Chinese). 2. A + 是 + adjective + 的: emphasizes a specific feature, often used for color, material, or origin — 花是白的 (The flower is white [specifically white]), 这件衣服是新的 (This piece of clothing is new).
When to use 是: always use 是 when linking two nouns for identity — 她是我的朋友 (She is my friend).
When NOT to use 是: - Do NOT use 是 before a bare adjective predicate. 她是漂亮 is wrong. Use 她很漂亮 or 她真漂亮！ - Do NOT use 是 for possession — use 有: 我有书 (I have a book), NOT 我是书. - Do NOT confuse 是 sentences with 在 sentences (location): 他在学校 (He is at school) — location uses 在, not 是.
语法句型
A + 是 + B (noun) — identity / classification
Establishes that A is B, or A belongs to a category.
他是我的老师。
Tā shì wǒ de lǎoshī.
He is my teacher.
这是他的书。
Zhè shì tā de shū.
This is his book.
我们是同学。
Wǒmen shì tóngxué.
We are classmates.
语法句型
A + 是 + adjective + 的 (emphasize a specific feature)
Highlights a specific characteristic, especially color, material, or origin.
花是白的。
Huā shì bái de.
The flower is white.
这件衣服是新的。
Zhè jiàn yīfu shì xīn de.
This piece of clothing is new.
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