In English, there are three cases of nouns: nominative case, objective case and possessive case. Among them, individual nouns refer to individuals in a certain kind of people or things, such as girls. Collective noun represents a collection of individuals, such as the audience.
Material nouns refer to objects that cannot be divided into individuals, such as water; Abstract nouns represent abstract concepts such as action, state, quality and feeling, such as work and happiness. Common nouns can be divided into countable nouns and uncountable nouns.
1, proper noun: refers to the proper name of a person, place, institution or organization. Specifically, it includes names of people, places, months, weeks, festivals, books, movies and some abstract nouns. Such as: Jim Jim, China China, Mr. Smith? Mr Smith.
2. Common nouns: nouns representing a class of people or things or abstract concepts. Specifically, it can be divided into individual nouns, collective nouns, material nouns and abstract nouns.
Among them, individual nouns refer to individuals in a certain kind of people or things, such as girls. Collective noun represents a collection of individuals, such as the audience. Material nouns refer to objects that cannot be divided into individuals, such as water; Abstract nouns represent abstract concepts such as action, state, quality and feeling, such as work and happiness.