7.盼望； 期待　 ____________　　 　(look forward to )

6.曾经； 一度　 ______________ 　(at one time)

5.决不,任何时候都不________　　 (at no time)

4.向某人祝贺___________　　　　 (congratulate sb on sth)

3.工薪阶层__________　　　　　 　(the salaried class)

2.向某人申请某物__________ 　　(make an application to sb for sth)

1.热烈地接待某人_________　　 　(give a warm reception to)

8. return into the earth's atmosphere　 9. land safely　 10. wave to the crowds waiting for him

5. the 21-hour space flight　 6. for the sixth time　 7. do the seventh circle

10.朝等待他的人群招手______

答案：1. the first manned spaceship　 2. lift off　 3. separate…from　 4. because of