English is good, what are the prepositions in English, and what are their functions

Prepositional phrases can be used as adverbials, predicates, predicates, object complements, etc., and sometimes as subjects.

The adverbial indicates the time, place, reason, purpose, method, etc.

in fifteen terrible seconds a large city lay in ruins.In the space of a terrible 15 seconds, a large city is reduced to rubble.

The definite is usually placed after the noun or pronoun that is modified.

why are some animals in danger of disappearing？Why are some animals in danger of extinction?

The predicate is located after the conjunctive verb, explaining and supplementing the subject.

while he was in the office，he preferred doing something to chatting.When he's in the office, he likes to do things and doesn't like to chat.

As an object complement.

Together with the preceding object, it forms a compound object.

do you think of him as an honest boy？Do you think he's an honest kid?

Specific prepositions such as:

1.The prepositions that represent time are: at, on, in, before, after, etc.;

2.Prepositions that indicate the methods and means of doing something: bold, with, in, at, on, etc.;

3.Common prepositions for periods: bring, for, over, with, through, from, etc.;

4.The prepositions that represent space are: at, in, on, huainucleus over, rock above, under, below, etc.;

5.Prepositions that indicate static positions include: from, to, up, down, through, crossing, and other prepositions that indicate dynamic directions.

1. AT, which means "at a certain time and at a certain point in time".

at 5:30, at 5:30

At sunrise, at sunrise.

at lunch.

at night.

2. on, which means "in the morning and afternoon of a specific day or day".

on Monday.

on April 1st, on April 1st.

3. in, which means "in a certain month, season, year, century" and the morning, afternoon, and evening in general.

in September.

in winter.

in 1999, in 1999.

in the 20th century.

in the morning afternoon evening

The main use of prepositions.

1. Commonly used prepositions such as during, for, over, within, throughout, from and to during the period.

1) During is used for a known period of time, including a well-known festival or a predetermined period or stage.

During the Middle Ages.

during 1942:

during the summer(of that year).

During his childhood.

2) for is used to denote a period of time.

for six years.

for two months: There are two months.

for ever: Forever.

2. Indicates progress.

he is at work.He's working.

the road isunderconstruction.The road is being repaired to guess the calendar.

3. Indicate the original return cause.

Commonly used prepositions to express reasons are for, etc.

4. Representation method.

Prepositions for "method, means" are often used by, with, through, etc.

by bike : Riding a bike.