Regarding the definite article, The The is a definite article or an indefinite article

Not necessarily, mainly specifically refers to, the following can be followed by a singular number, but it must be specifically referential, and it can also be used with proper nouns, such as China, tom (personal name) ......

The is a definite article.

Usage of the definite article the :

1. Specifically refers to a certain person or something, which is the basic usage of the definite article.

For example: Beijing is the capital of ChinaBeijing is the capital of China.

2. Refers to a person or thing that both parties to the conversation know.

Example: open the window pleasePlease leave the windows open.

3. Refers to something unique in the world.

Example: which is the biggest, the sun, the earth or the moon?Which is the biggest, the Sun, the Earth, or the Moon?

4. It is used before the superlatives of ordinal numbers and adjectives.

Example: The first truck is carrying a few basketsThe first truck loaded some baskets.

Usage formula for the definite article the:

The world is unique, and the ordinal number describes the advanced front;

The people or things mentioned above, the direction of the musical instrument theater;

archipelagos, rivers, mountains, rivers and lakes, deserts, straits and bays;

the name of the class, party, state, organization and institution;

dynasties, conferences, and newspapers, the before proper nouns;

The young wounded are of the same class, and the surnames are plural in front of the family;

Both sides know the striking position, which means that it refers to a specific class and a fixed match.

Before the legal name of the country, it is generally necessary to use the the. But generally not before a traditional or common name.

For example, China directly uses China without adding the, but the People's Republic of China wants to add the people's republic of china。It's the same in the United States, don't use America before, use USA because it's the abbreviation of The United States of America.

In the UK, too, the UK stands for The United Kingdoms, but instead of The England, it is directly said England.

Key Vocabulary Explanation:

1、theart.This; That.

adv.More (for comparative, highest grade ode to the front of the land).

2、ukabbr.United Kingdom

n.United Kingdom.

3、usaabbr.United States; The United States of America

Basic usage of definite articles:

1) It means to refer to someone or something, and the so-called special reference is "nothing else, that!" Such as:

thegirl with a red cap is susan.

The girl wearing a red hat pie hood is Susan.

2) Once the word "the" is used, it means that both people in the conversation know who and what they are talking about. Such as:

the dog is sick.

The dog is sick. (Both sides know which dog it is).

The twelve uses of the their are as follows. 1. Refers to a person or thing that has been mentioned or easily understood.

2. Refers to a person or thing that is unique, normal, or self-evident.

3. Use it when explaining.

4. It is used to refer to it in general.

5. Used in conjunction with adjectives, it refers to things or people collectively.

6. Before being used in the plural form of the surname, it refers to a family or a couple.

7. Refers to things for a specific purpose) sufficient, just right.

8. (in conjunction with the unit of measurement) each, one.

9. (in conjunction with the unit of time) current, this, this.

10. (Stress, indicating that the person or thing referred to is well-known or important).

11. Use and prepositional phrases.

12. It is used for fixed collocation.