第二节(共 5 小题；每小题 1 分，满分 5 分)
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
In 2003，China sent its first astronaut，Yang Liwei，into space. Since then，26 Chinese astronauts have “reached for the stars”. Zhai Zhigang，Wang Yaping and Ye Guangfu are three of them. 61. And they gave us a wonderful live class from the Chinese space station. Have you ever dreamed of becoming an astronaut like them? How did they get there?
62. Good eyesight，a strong heart and strong lungs are important. You'd better not have other small problems. For example，tooth decay could get worse in space and bring trouble to astronauts.
You also need to become stronger with hard training. In China，you must be a great pilot before you can be an astronaut. 63. It's very difficult. Besides，you need to build yourself as strong as players by running and swimming. You will also wear a 200 - kilogram suit and do tasks underwater for six or seven hours without eating. 64.
65. Astronauts take about 60 courses to get ready for a mission，including Maths，English，Physics and many more. So they can also do scientific experiments in space.

61～65. GCAEB