有关孔子被困的成语主要有两个，分别是“陈蔡绝粮”和“知人不易”。
“陈蔡绝粮”讲述的是孔子在周游列国时，曾在陈国和蔡国之间的地方受困，连续七天粒米未进，然而他仍然保持乐观，继续讲学，弦歌不断。这个成语用来形容人处于困境中，但精神依然饱满，不放弃追求。
“知人不易”则源于孔子在陈蔡绝粮期间的一个故事。孔子的一位弟子颜回在找不到食物的情况下，找到一点米煮给孔子吃。当孔子看到颜回用手抓锅里的饭吃时，他并没有直接指责，而是假装做了个梦，说要把干净的饭食祭祖。颜回解释说他是因为看到有灰尘掉进锅里，所以把弄脏的饭粒吃掉，以免浪费。孔子听后感慨道，即使是自己亲眼所见，也不一定能真正了解一个人。这个成语用来提醒人们不要轻易下结论，了解一个人需要时间和耐心。
这两个成语都反映了孔子在困境中的智慧和坚韧不拔的精神，以及他对于人性的深刻洞察。
以下是一个关于学校话题的英语对话示例：
Student A: Hey, what's your favorite subject in school?
Student B: Hi, well mine is math because I love numbers and solving problems.
Student A: Math is also great, but for me it's history. I find the stories about the past really interesting.
Student B: Yeah, history is fascinating. Do you know why?
Student A: No, why?
Student B: Well, history helps us learn from the mistakes of the past and make better decisions in the future.
Student A: That's a good point. What's your least favorite subject?
Student B: Hmm, that would be PE. I'm not very sporty and I hate running.
Student A: PE can be tough, but I hate studying languages. I find them so boring.
Student B: But learning languages is a great skill. It opens up new cultures and opportunities.
Student A: You're right, I guess it's just personal preference. So, what's your favorite activity outside of school?
Student B: I love playing guitar, it's my favorite hobby.
Student A: That's cool, I like playing basketball with my friends. Do you play in a band?
Student B: Yeah, I'm in a band and we play covers of popular songs. It's great fun.
Student A: That sounds amazing. I wish I could play an instrument. What's your dream job?
Student B: My dream job would be working as a mathematician or statistician. I love numbers and want to use them to make a difference in the world.
Student A: That's great. My dream job would be working as a historian or archaeologist. I want to uncover the past and learn more about our ancestors.