以下是九年级上册英语第一单元2b的重点句子：

1. What do you think of the new English teacher? - I think she is very friendly and knowledgeable.

2. How often do you have English class? - We have English class three times a week.

3. Can you speak any other languages? - Yes, I can speak a little bit of Spanish.

4. What is your favorite subject? - My favorite subject is science because I find it fascinating.

5. Do you enjoy studying English? - Yes, I enjoy studying English because it helps me communicate with people from different countries.

6. How long have you been learning English? - I have been learning English for five years.

7. What do you find most challenging about learning English? - I find grammar to be the most challenging aspect of learning English.

8. Have you ever been to an English-speaking country? - No, I have never been to an English-speaking country, but I would love to visit one someday.

9. What strategies do you use to improve your English skills? - I often practice speaking with native speakers and I also watch English movies with subtitles.

10. What are your goals for learning English? - My goal is to become fluent in English and be able to have conversations with native speakers effortlessly.