One character a day, easy to master Chinese characters. Let's take a look at the basic knowledge of "有".

有 yŏu
Explnantion: possess; have
Phrases: 有害（yǒu hài） harmful  ；有趣（yǒu qù） interesting; amusing

“有”字是在（ ）之下有一个（ ），看上去像手拿着肉的样子，古时人们生活艰苦，有肉吃是很了不起的事，犹如拥有了全世界！所以衍生出“拥有”、“具有”的意思，“有”的反义词是“无”。
The ancient form of this character used the form （ ）on top of （  ）which itself was a form of the character 肉 (ròu: meat). As a whole, it depicts a right hand holding a piece of meat. To the ancients, possessing meat was felt akin to owning the entire world, therefore a right hand holding onto a piece of meat meant “have” or “possess”. Gradually this character came to be used as an antonym of “无” (nothing; not possessing). 

Sentences:

1.Guòduō yǐnjiǔ duì shēntǐ shífēn yǒuhài.
过多饮酒对身体十分有害。
Drinking too much alcohol is detrimental to one's health.

2.Háizimen tíchū le gèzhǒng yǒuqù de wèntí.
孩子们提出了各种有趣的问题。
Children raise many different funny questions.