How to distinguish the moon before the festival?

How to distinguish between the holiday period, the holiday day and before the holiday is as follows:

1, refers to the whole festival, with at.

We often eat turkey at Christmas. We usually eat turkey at Christmas.

We eat jiaozi in the Spring Festival. We eat jiaozi in the Spring Festival.

2, refers to a day in the festival, used in.

Come and see us at Christmas. Come and play on Christmas Day.

This is exactly what we said before: as long as it is specific to a certain day, we must use on.

Weekend, the British say weekend, the Americans say weekend.

What did you do at the weekend? What did you do at the weekend?

He likes to climb mountains on weekends.

What is the preposition:

English prepositions (an adposition and postposition) indicate the relationship between nouns, pronouns and other words in a sentence, and cannot be used as sentence components alone. Prepositions are usually followed by nouns, pronouns or other parts of speech, phrases or clauses equivalent to nouns as objects, indicating the relationship with other components.

A preposition and its object form a prepositional phrase, which is used as an adverbial, predicative, complement, attribute or prepositional object in a sentence. At the same time, the usage of prepositions is also very flexible. The same preposition can express many meanings. Prepositions can be divided into prep. Location preposition, mode preposition, reason preposition, quantity preposition, etc.

Prepositions are generally used in front of nouns or pronouns to indicate the relationship between the word and other components in the sentence. The noun or pronoun after the preposition is called the object of the preposition (if it is a personal pronoun, the objective case should be used). Prepositions and objects are combined to form prepositional phrases.