Formula:

When there are many words, use commas; When there are few words, pause;

When expressing emphasis, use commas; When you don't emphasize, use pause;

If the composition is irregular, use commas; When the ingredients are all together, just pause;

Components are phrases separated by commas; Composition is words, with pauses.

Method:

1, pause is the smallest pause in a sentence, which is often used between juxtaposed words or phrases (pause is not allowed between clauses). But there is no pause between the coordinate predicate and the complement, only commas are used.

This year, the task of water conservancy construction in this province is heavy, the project is difficult and the scale is large. You should strive for perfection, literacy and production. His story is true and touching.

2. There is no pause between coordinate words with modal particles, only commas are used.

For example, the mountains, water, trees and grass here are all familiar to me since I was a child.

3. The conjunctions "and, or, and, and" in the coordinate words have been used, and there is no need to pause.

For example, China has made great progress in science, culture, health, education and press and publication. Generally speaking, conjunctions are used to coordinate the last two items of words, not to pause. )

4. Adjacent numbers represent divisors without pause.

He has walked three or four miles. Note: It should be distinguished from the situation that indicates two kinds of juxtaposition.

For example, domestic universities require students to take a foreign language in both the first and second grades.

5. Set words are closely related and do not need to be separated by pauses.

Such as: police, primary and secondary school students, colleges and universities, men, women and children.

6. There is no pause between the quotation marks indicating juxtaposition and the title of the book, which must be used. Only commas can be used.

I have watched many excellent movies recently, such as Hero, Infernal Affairs and Beautiful Life.

7. Pay attention to the classification of coordinate words, using pause for small words and comma for big words; Use commas in minor clauses, semicolons in major clauses, and even periods.

For example, the explosion of atomic bombs and hydrogen bombs, and the launch and recovery of satellites all marked a new step in China's scientific and technological development.