一

yī num.

The number one, the smallest whole unit of counting. One, single, whole, first, each, or a brief instant.

The primal single unit, beginning of numbers, or a solo condition.

一 measures single items (一个鸡蛋) and solitary individuals (一个人).

Common Usage & Traps

  • 一个人 — alone / by oneself
  • 一饭店 一个饭店

    Numbers must take a classifier before nouns.

Why does 一 change its tone between yī, yí, and yì?

Tone sandhi: 一 changes to 2nd tone before 4th tone words, and 4th tone before 1st, 2nd, and 3rd tone words.

You say yí ge (before 4th tone) and yì diǎnr (before 3rd tone). It keeps spoken Chinese musical.

Appears in Stories 18 stories

Real context sentences across different daily scenarios and graded readings.

《一二三(2)》 (Counting Days and Rhymes) HSK 1
~2 min read 84 chars
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This playful poem turns numbers into a rhythm of daily life. As you read, practice counting, days of the week, and common time words in a fun, memorable way.

  • 一 二三四五,今天星期五。

  • 工作两三年,休息四五天,读书 一 小时,吃饭五分钟。

《你也在想我吗》 (Do You Miss Me Too?) HSK 1
~2 min read 128 chars
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This short, soothing piece is about missing someone on a rainy night. The sentences are simple and repeat often, so you can practice reading while feeling the warm emotion.

  • 我坐在桌前,在喝一杯茶, 一 杯热热的茶。

《五块钱》 (The Five-Yuan Gift) HSK 1
~6 min read 414 chars
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This heartwarming story shows how a small act of kindness can be passed on. Follow Gao Xianming as he learns an important lesson about generosity in his new city.

  • 高先明看见 一 个中国同学安小语,也是手里少五块钱,不能上车。

《友好的高友朋》 (A Friendly New Friend at Work) HSK 2
~4 min read 243 chars
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Meet Gao Youpeng, a friendly Beijing coworker who welcomes the narrator with local dishes and a simple language-exchange plan. This warm HSK 2 story is perfect for first readings about work and friendship.

  • 今天我认识了 一 个新朋友,真高兴。

  • 他叫高友朋,是 一 个北京人。

《热面条》 (Hot Noodles on a Cold Night) HSK 1
~5 min read 399 chars
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Follow Dazhong, a busy worker in China, as he finds warmth and kindness at a small noodle shop. Practice everyday words for food, weather, and expressing gratitude.

  • 晚上,大中去公司前边的 一 个小饭店吃饭。

  • 饭店里有 一 个老先生。

《饥饿的深意》 (The Hidden Meaning of Hunger) HSK 7
~11 min read 1243 chars
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Why would a millionaire leave a table of lobster and wagyu untouched? This story explores the hidden rules of business dining and the true cost of staying alert.

  • 可他 一 开口,整桌人都停下来听。

  • 肚子里那 一 桌三万多的饭菜还没消化,沉甸甸的。

《你误会方便面了吗?》 (Are Instant Noodles Misunderstood?) HSK 6
~10 min read 1171 chars
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Think instant noodles are unhealthy? This HSK 6 article challenges common myths and reveals surprising facts about nutrition, oil, and salt in this convenient food.

  • 误会 一 :方便面有毒很多人想当然认为,方便面保质期很长,不会坏,原因一定是因为里面“有东西”,有毒!

  • 就是说,没有任何 一 种食物可以提供全面营养,也就没有任何人只吃 一 种食物就可以完全满足身体的需要。

《这还是茶馆儿吗?》 (Teahouse or Cinema?) HSK 3
~3 min read 325 chars
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Ever wondered where old Beijing's tea-drinking culture has gone? Follow a visitor discovering why locals now avoid famous tea houses—and practice expressing surprise and comparisons in Chinese along the way.

  • 我问 一 个老北京哪个茶馆儿最好。

  • 北京有 一 个有名的老茶馆儿,叫“老舍茶馆”。

《找“大白”》 (Looking for Big White) HSK 1
~5 min read 361 chars
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A young man helps an old man look for his cat. But the real surprise is why the old man wanted to find the cat. Read on to learn about kindness and friendship.

  • 一天,白天明在学校大门口前边看见有人写了找猫的话:“我想找 一 只大白猫。

《大学者和小人物》 (The Scholar and the Cookie Seller) HSK 5
~8 min read 882 chars
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Discover how a simple letter from a cookie seller led to an unexpected friendship with a famous scholar. This heartwarming story explores kindness and connection across social divides.

  • 于是他便写了 一 封长信给大学者胡之适。

  • 胡之适接到这封信,知道了他虽然只是 一 位卖饼干的,竟然能在业余勤奋自学;问的又是胡博士最关心的英美政治问题,更觉十分高兴,便立即亲自写了 一 封回信。

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