阅读理解。 Russia takes pride in its circus (马戏) performers. The oldest circus school in the world--Moscow Circus School owns the best circus performers. (1) Every year more than a thousand children from other countries want to enter this school . However, only about 70 of them are chosen. The students must be less than eleven years old. They must be talented and good at sports as well. Students at the Moscow Circus School learn a lot. (2)_______ the same basic (基础) subjects as those in other schools, they have to learn four circus subjects. Those subjects sound fun, but they are difficult to learn. For example, it can take years of practice for a student to walk on the high wire. While learning and practicing, the students always wear safety belts. So if they make mistakes, they will not get (3) _________. After seven years of study, the students are supposed to leave school. The graduates usually work in the circuses and can make a lot of money. 1. 请在文中找出下面句子的同义句。 Russia is proud of its circus performers. ____________________________________________ 2. 请将（1）处的句子翻译成汉语。 ____________________________________________ 3. 回答问题：Which students can enter the oldest circus school in the world? ____________________________________________ 4. 在文中（2）、（3）处填上一个适当的单词，使句意完整。 （2）____________ （3）____________ 5. 写/找出文章的主题句。 ____________________________________________