To read and understand English texts on chemistry and politics in junior high school, follow these steps:

1. Build a Vocabulary: Start by learning key vocabulary related to chemistry (e.g., atom, molecule, reaction) and politics (e.g., democracy, election, government). Use flashcards or an online vocabulary builder to practice regularly.

3. Context Clues: When encountering unfamiliar words, use context clues to guess their meanings. Look for synonyms, antonyms, or examples that help clarify the word's usage.

4. Highlight Key Points: As you read, highlight important concepts and terms. This will help you review and remember key ideas later.

6. Practice Summarizing: After reading an article or chapter, try summarizing the main points in your own words. This will help you check your understanding and improve your critical thinking skills.

7. Review and Reflect: Regularly review the materials you've read and think about how they relate to real-world situations. This will deepen your comprehension and make the information more meaningful.

By following these steps, you can effectively read and learn about junior high school chemistry and politics in English.