1. Improve your language ability: The whole English environment can adapt your ears and brain to English pronunciation, intonation and grammatical structure, thus improving your English listening, speaking, reading and writing ability.

2. Enhance self-confidence: Practicing oral English in an all-English environment can help you gradually overcome your fear and nervousness about speaking English and enhance your self-confidence.

3. Enlarge your vocabulary: Communicating with native English speakers can expose you to more words and expressions, thus expanding your vocabulary.

4. Improve your communication skills: Practicing oral English in an all-English environment can help you learn how to express your thoughts and needs effectively in English and improve your communication skills.

5. Cultivate cross-cultural communication ability: English environment can help you understand communication habits and etiquette in different cultural backgrounds and cultivate cross-cultural communication ability.

6. Increase employment opportunities: Mastering fluent spoken English can provide you with more employment opportunities in the international workplace.

7. Broaden interpersonal relationships: Practicing oral English in an all-English environment can help you meet friends from all over the world and broaden interpersonal relationships.

8. Improve your ability to learn other subjects: English is the foundation of many subjects, and mastering fluent spoken English can help you learn other subjects better.

9. Enhance your thinking flexibility: To learn a new language, you need to understand and express it in different ways of thinking, which will help improve your thinking flexibility.

10. Enrich your life experience: Practicing oral English in an all-English environment can help you experience different cultures and lifestyles and enrich your life experience.