The difference between time, place and orientation is as follows
Differences in usage when expressing time: in time is long at a certain point; Time is pressing.
The usage difference when indicating the place: in is the largest; On is the second; At is the smallest.
The usage difference when indicating orientation: in means inside, on means on the contact surface, and at means contact point.
Have a direct view, I can give you a preliminary understanding first ~ ~
First of all, tell everyone the difference in meaning ~ ~
1, inch. Pronunciation: English [? N] beauty [? Can be used as preposition, adverb, adjective and noun.
When used as a preposition, it means "in …"; Go inside ...; In the position of; During ...; After ...; Wear (usually followed by color); In the state of; According to ...; Be included; Take part in ...; In ... language, and ... media; On the tone of ...; In the process of (activity); At the age of 18. When ...; Give the name of the person who endowed a certain quality; Pick up ...; (used between larger and smaller numbers); In the number of ...; With the color of; In the manner of. Have the characteristics of. According to (representation) "
When used as an adverb, it means "enter; Inside; Arrive; Elected; High tide; In the house; At the station; Received; Submit, send; Fill in and color; To the inside, to the middle; Hit the ball; (the ball) falls in bounds; Fashion (clothing, etc. )
When used as an adjective, it means "inside; Fashion; (dribbling) in the world. "
When used as a noun, it means "ruler; Door. "
3, open. Pronunciation is: English [? [n] beauty [ɑ? Can be used as preposition, adverb, adjective and noun.
When used as a preposition, it means "above"; Toward, toward; About; At the time of ... Get the support of ...; Use (on); A ... just; Eat and drink; Approaching; According to; Earn money from; Payer ...; Use ... as fuel; In ...; As a member of; With the help of (instruments or appliances); Compared with ...; Increase; Taking drugs. Broadcast (by radio or television); Busy "
When used as an adverb, it means "above; Forward; Go on, in action; Dress; Give (an entertainment performance, etc.). ); (electrical appliances) on the ground; On duty "
When used as an adjective, it means "open; Occurring or in progress; After that; Coverage; Attached (especially in the right place); Written; It is being broadcast. "
When used as a noun, it indicates a person's name.
3、at？ . Pronunciation is: English [? t，？ T] beauty [? t，？ T] can be used as a noun and a preposition. The basic meaning is: (indicating position) in; At (a certain time or moment); Arrive, arrive; Toward, toward.
Then I'll introduce you to their differences in usage ~ ~
equation?of?time;?time?difference
(1) is large and long in time range (such as century, dynasty, year, month, season and morning, afternoon or evening, etc.). ), for example:
I play the piano? Morning. ? I play the piano in the morning.
We usually fly? Kite? In spring. ? We usually fly kites in spring.
(2)on refers to the morning, afternoon and evening of a certain day. For example:
Is it snowing? On Christmas Day. ?
It snowed on Christmas Day.
We don't have classes? On Saturday. We don't have classes on Saturday.
(3) The 3)at time is the shortest, generally referring to the time point. For example:
Does he often go home? Noon. He often goes home at noon. The noon here can also be changed to midnight, ten o'clock, dawn, dawn and so on.
Difference in position
1.at refers to a specific place and is used to refer to a smaller place. 1 will wait for you at the station.
2.on generally refers to more specific streets. Now ... for example, you may know that President Obama lives on Pennsylvania Avenue in Washington, D.C. 。
3.in refers to the largest place. For example: I live? In Beijing. I live in Beijing.
Differences in usage when indicating orientation
(1) The position indicated by the preposition in is inside something, occupying a part of something, such as:
There is a river in this painting. There is a river in the picture, which means that the river is painted, not real.
(2) the position indicated by the preposition on is above something, supported on the surface, emphasizing contact, such as:
There is a pen on the picture. ?
The pen is on the painting, really, it can be used to write and draw, not to draw.
(3) The position indicated by the preposition at is a point, for example, at home.
Finally, I will summarize a paragraph for you (be sure to remember! ! ):
In, on and at have abstract concepts and laws from big to small and from broad to concrete when expressing time and place. For example, from home to the city, to geographical concepts larger than the city, such as countries and continents, are used in; The same is true of time, from 12 to Friday to the middle of this month, and then larger time concepts such as year and century are also used in the book.
The above is the usage and difference of in on at shared with everyone. I hope it can further help you understand these words. Just like it ~ ~