Can anyone explain the definition of English prepositions and their specific usage

There are many uses of prepositions, often with flexible applications. The usage is obtained from the usual accumulation, not that you can use it if you memorize it, if you don't apply it in practice, even if you memorize it, it won't work.

Prepositions and usage Please refer to "Prepositions" in "Encyclopedia".

Definition of English preposition: It is a word used to express the relationship between words and sentences.

Words that are in the relationship between words and sentences. It cannot be used as a separate sentence component in a sentence. A preposition is usually followed by a noun pronoun or other parts of speech equivalent to a noun, a phrase or a clause as its object.

A preposition and its object form a prepositional phrase that serves as an adverbial, predicate, complement or prepositional object in a sentence.

Prepositions mean to indicate the relationship between nouns, pronouns, etc. and other words in the sentence, and English commonly used prepositions: on, at, in, above, by, with, etc.

A preposition is a word that indicates the relationship between words and between words and sentences. Literal components cannot be produced in a sentence alone. The preposition is followed by a noun pronoun and other parts of speech equivalent to a noun, and the phrase and the clause are its objects.

A preposition and its object form a prepositional phrase, and in a sentence it forms an adverbial, predicate, complement, or prepositional object.

English prepositions (preposition, a type of adposition, postposition) indicate the relationship between nouns, pronouns, etc. and other words in the text, and cannot form a separate part of a sentence in the text. A preposition is followed by a noun, pronoun, or other part of speech equivalent to a noun, phrase, or clause as its object, indicating a relationship with other components.

A preposition and its object form a prepositional phrase and form an adverbial, predicate, complement, definite, or prepositional object in a sentence. At the same time, the use of prepositions is also flexible, and the same preposition can be used to express multiple meanings. Prepositions are divided into time prepositions, place prepositions, mode prepositions, reason prepositions, quantity prepositions, and other prepositions.

Prepositions (prepositions, abbreviated as prep), also known as prepositions, are one of the most active parts of speech in English, connecting the subject and the predicate. In particular, some commonly used prepositions are particularly collaborative, and can be used to express a variety of different meanings. Most idioms in English are made up of prepositions and other words.

Meaning: English prepositions indicate the relationship between nouns, pronouns, etc. and other words in a sentence, and cannot be used as a separate sentence component in a sentence. Usage:

A preposition is generally followed by a noun, a pronoun or other parts of speech, phrase or clause equivalent to a noun as its object, indicating the relationship with other components. The preposition and the object of the preposition are combined to form a prepositional phrase.

1.Used as a definite sentence

a meeting in the afternoon

A meeting in the afternoon.

If there is a modified noun before a preposition, the preposition is used as a definite term for the noun, such as in the morning to modify the meeting, which is often translated with "...Target.

2.Used as an adverbial

he lives in shanghai

He lives in Shanghai.

If there is a modified verb before a preposition, the preposition is used as a modified adverbial.

Here in shanghai modifies lives, indicating that he lives in Shanghai, and is used as a place adverbial.

3.Used as a predicate(A predicate is a word or phrase used after the verb be am, is, are and its past participle or sensory verb).

the teacher is in a good mood.

This teacher is in a good mood.

in a good mood is used after the be verb is to make a predicate.

4.Used as a complement(Additional clarification of the object).

tom left his mobile phone in the class

Tom left his phone in the classroom.

In the Class is a supplementary description of the object mobile phone, that is, the place where it falls is class

Have you learned today's content?

1. Prepositions play the role of markers, attached to the real words or phrases, and together constitute "preposition phrases".

2. The prepositional phrase as a whole mainly modifies and supplements predicate words, acts as adverbials, definite words, complements, and is sometimes used as sentence opening modifiers, indicating the time, place, method, reason, purpose, service, subject, object, etc. related to actions and characteristics.

3. In modern Chinese, prepositions are also called prepositions because they are always attached to the front. Prepositions are often used in front of noun words. Some prepositions can also be marked before predicate words, such as "Xiao Hei was punished for being late."

Soros is known for his shrewdness. The fire was caused by smoking. "Average table reasons.

4. The component behind the preposition is called the prepositional object, which is different from the verb object, because the preposition is a virtual word, and the combination between the preposition is an adherent additional relationship.

5. Grammatical characteristics of prepositions: they cannot be used as syntactic components alone, they must always constitute prepositional phrases as adverbials, and a few can also form prepositional phrases as complements and predicates.

6. The vast majority of prepositions in Chinese are derived from verbs. Some words are still verbs and similar words.

7. The object of the preposition in ancient Chinese is usually placed after the preposition like in modern Chinese, but a few prepositions, mainly the object of "to", are placed in front of the preposition because of the need to express. The object of a preposition in modern Chinese cannot be omitted, and the object of a preposition such as "to", "for", "and", and "from" in ancient Chinese can sometimes be omitted, but the object of "yu" cannot be. In terms of grammatical function, the prepositional structure of ancient Chinese composed of "cause, for, and, from" and so on is generally used as an adverbial, which is the same as that of modern Chinese, but the prepositional structure of the word "yu" is mostly used as an adverbial except for the meaning of for and about, and the rest (such as the table place and time) are mostly used as complements. The word "to" is a tool in the prepositional structure, which can be used as both an adverbial and a complement.

These aspects are generally expressed in modern Chinese by adverbials. In addition, the prepositional structure of modern Chinese can also be used as a definite (connection with the masses), but ancient Chinese cannot either.