In class, students are sharing their dream jobs.
Jacob: I'd like to be a mountain-climbing guide for several reasons. Number One, mountain climbing is very exciting. Mountain-climbing guides get to climb tall, dangerous mountains, right? Number Two, I enjoy working outdoors and helping others. Number Three, mountain-climbing guides travel widely and meet many fun people.
Fred: My choice is to be a vet（兽医）. Why? I like animals. Animals bring a lot of joy to our lives, but they ask for little in return. I also enjoy helping animals and their owners feel better. Pet owners are happy when their pets are well. Finally, vets get to work with other people who like animals.
Anne: Ha, my dream job? An accountant （会计）! I think it's interesting. I'm good at numbers, you know, and I also like helping people manage their money. Good accountants are well paid, and I want to manage my own money, of course. But the most important of all, accountants mostly work alone, and I like to work alone.
Jessica: I'd like to become an animator（动画片制作者）and make films like Toy Story, Shrek, and Cars. You see, I love drawing and I love working on computers. I'd like to help people relax and enjoy their life. Animators can make a lot of money, too.
21. Jacob's dream job is to be         .
A. a vet B. an animator
C. an accountant D. a mountain-climbing guide
22. What is Anne's main reason for her dream job？
A. The job is interesting. B. The job is well paid.
C. She is good at numbers. D. She likes to work by herself.
23. What do the four students have in common?
A. They enjoy working outside. B. They enjoy offering help to others.
C. They hope to meet fun people. D. They hope to make a lot of money.
文章大意：文中四个学生分享了各自梦想中的工作，并且分别给出了各自的原因。
21.D【解析】细节理解题。根据第二段中"I'd like to be a mountain-climbing guide for several reasons."可知Jacob梦想中的职业是成为一名登山向导。故选D。
22.D【解析】细节理解题。根据第四段中"But the most important of all, accountants mostly work alone, and I like to work alone."可知最重要是会计可以独自工作，并且Anne很喜欢独自工作。故选D。
23.B【解析】细节理解题。根据第二段中"Number Two, I enjoy working outdoors and helping others."、第三段中"I also enjoy helping animals and their owners feel better."、第四段中"... and I also like helping people manage their money."及最后一段中"I'd like to help people relax and enjoy their life."可知这四个学生的共同点是喜欢帮助其他人。故选B。