七年级单词2

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Across
  1. 3. a person who studies science
  2. 6. the study of the earth and its features
  3. 8. a period of school time
  4. 10. a mathematical value（用途)
  5. 11. the condition of being alive
  6. 12. not interesting
  7. 16. able to be used for a purpose（目的）
  8. 17. a difficult situation
  9. 19. a person who sings
  10. 20. causing great enthusiasm（热情）
Down
  1. 1. the study of past events
  2. 2. the language spoken in France
  3. 4. a device for making music
  4. 5. to keep in mind
  5. 7. the time before the present
  6. 9. very good
  7. 13. a cause for an action
  8. 14. the time yet to come
  9. 15. the study of living organisms（生物）
  10. 18. the use of supernatural powers