Lesson1

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Across
  1. 1. something that happens to you; what you learn by doing
  2. 4. feeling very happy and enthusiastic
  3. 7. (of animals or plants) may soon disappear
  4. 10. an important subject or problem
  5. 12. a very long race of about 42 kilometers
  6. 15. to look for something carefully
  7. 19. the increase in the Earth's temperature
  8. 20. living in nature, not with people or on a farm
Down
  1. 2. ready for something
  2. 3. relating to meeting and spending time with people
  3. 5. a formal event for a special day
  4. 6. feeling worried or afraid about something
  5. 8. to bring something to an end
  6. 9. a building where people go to see fish and sea animals
  7. 11. to continue to live through a difficult time
  8. 13. something that you do for enjoyment or a goal
  9. 14. to go out to buy or do something for someone
  10. 16. having or showing strong feelings
  11. 17. a situation where something bad can happen
  12. 18. many different types of things