1. The first word of the title should be capitalized;
2. Articles do not need to be capitalized;
3. Prepositions and conjunctions with more than three letters (excluding three) should be capitalized;
4. the initials of nouns, verbs, adjectives, adverbs, pronouns and interjections;
5. Capitalize all words that require capitalization in English. Such as month, name, place name, etc.
the priority of these principles is decreasing, that is to say, if there is a contradiction between several principles, the former principle should be applied first. For example, if the first word of a topic is an article or a preposition with no more than two letters, it should also be capitalized.
capitalization rules of English letters
1. The first letter at the beginning of a sentence should be capitalized. "I (I)" should be capitalized anywhere in the sentence. For example: What's her name? Mary and I are teachers.
2. Capitalize the first letter of proper nouns such as place names, country names and names. For example: Russia (Russia), Youyang (Youyang), Chengdu (Chengdu), Jack (Jack).
3. Some kinship relationships (such as mother, sister, mum, dad, etc.) should be capitalized when they are used as address terms. Thank you, Granny．. Thank you, Grandma.
4. The first letter of a title or title before a person's name should be capitalized. For example: Mr Smith, Dr Wang, Miss Mary.
5. The first letter of nouns or adjectives indicating languages and nationalities should be capitalized. For example: Russian, Russian, Chinese, China.
6. In direct speech, the first letter of a sentence should be capitalized. For example, "Then," I said, "You havebeen making a mistake, and the letter is not in the apartment." "Well," I said, "you must be mistaken. This letter is not in that house. "
7. The first letter of the name of the week and month should be capitalized, but the first letter of the season is not capitalized. For example: Sunday, Sunday, August, winter, spring.
8. The first letter of the first notional word of some large-scale festival names should be capitalized. Such as Children's Day, National Day, Teachers' Day.
9. For proper noun phrases composed of common nouns, the first letter of each word should be capitalized except the article, short preposition and conjunction. For example: the Great Wall, the UnitedStates, USA.
1. The first letter of each notional word (function words: adverbs, prepositions, conjunctions, auxiliary words, exclamations and onomatopoeias) in the names of large conferences, documents and treaties should be capitalized. Book titles and newspaper titles should be capitalized, and the first letter of each substantive word in the title of an article should be capitalized. Such as: China Daily China Journal, New York Times The New York Times, Their Class Their Class (article title), the Warsaw Treaty, and English Coaching Paper as an example.
11. The first letter of the first word in each line of poetry should be capitalized.
12. Capitalize the first letter of the word indicating the address or position.
Example: Mr Green Green, Dr Li Li
13. Most abbreviations should be capitalized.
Example: CCTV (China Central Television), ID (Identity Card), CD (Disc)
14. "I "and" OK "should be capitalized in any position in the sentence. Example: Tom and I are students. Tom and I are students. That's OK. you're welcome.