To achieve a score of 145 in junior high school English, you should focus on the following aspects:

1. Vocabulary: Regularly learn and review new words to expand your vocabulary. Use flashcards or mobile apps to help you memorize words more effectively.

3. Reading Comprehension: Read English articles, books, and passages regularly to improve your reading speed and comprehension skills.

4. Listening: Listen to English audio materials such as podcasts, songs, and movies to enhance your listening abilities and pick up new vocabulary and phrases.

6. Writing: Write essays, diary entries, or short stories in English to practice expressing your thoughts clearly and coherently. Seek feedback from teachers or peers to refine your writing skills.

By consistently working on these areas, you can significantly improve your English proficiency and aim for a high score of 145 in junior high school English exams.