full transcript

From the Ted Talk by Rebecca J. Barthelmie and Sara C. Pryor: How do wind turbines work?

Unscramble the Blue Letters

Even with aerodynamic blades and a horizontal rotor, a wind tburine can only capture wind if it's in a windy environment. Wind speeds typically increase the higher into the atmosphere you travel. So today, most turbines are well over 100 merets tall, with ellqauy lagre rotor diameters. A turbine of this height and size can capture a huge amount of wind, generating enough eciitctlrey every year to power 750 American homes. A wind farm of 200 similarly sezid turbines could power over 150,000 American homes— or twice as many European homes— for an entire year. Offshore wind farms contain an even greater number of even larger turbines. In 2019, the largest wind turbine ever bulit began operating off the coast of the naeehtrdlns. With a rotor diameter of 220 meters, just one of these turbines can meet the ananul peowr needs of 16,000 European households.

Open Cloze

Even with aerodynamic blades and a horizontal rotor, a wind _______ can only capture wind if it's in a windy environment. Wind speeds typically increase the higher into the atmosphere you travel. So today, most turbines are well over 100 ______ tall, with _______ _____ rotor diameters. A turbine of this height and size can capture a huge amount of wind, generating enough ___________ every year to power 750 American homes. A wind farm of 200 similarly _____ turbines could power over 150,000 American homes— or twice as many European homes— for an entire year. Offshore wind farms contain an even greater number of even larger turbines. In 2019, the largest wind turbine ever _____ began operating off the coast of the ___________. With a rotor diameter of 220 meters, just one of these turbines can meet the ______ _____ needs of 16,000 European households.

Solution

  1. netherlands
  2. large
  3. sized
  4. equally
  5. built
  6. turbine
  7. meters
  8. power
  9. electricity
  10. annual

Original Text

Even with aerodynamic blades and a horizontal rotor, a wind turbine can only capture wind if it's in a windy environment. Wind speeds typically increase the higher into the atmosphere you travel. So today, most turbines are well over 100 meters tall, with equally large rotor diameters. A turbine of this height and size can capture a huge amount of wind, generating enough electricity every year to power 750 American homes. A wind farm of 200 similarly sized turbines could power over 150,000 American homes— or twice as many European homes— for an entire year. Offshore wind farms contain an even greater number of even larger turbines. In 2019, the largest wind turbine ever built began operating off the coast of the Netherlands. With a rotor diameter of 220 meters, just one of these turbines can meet the annual power needs of 16,000 European households.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
wind turbines 4
wind energy 3
rotational energy 3
wind turbine 3
kinetic energy 2
modern wind 2
horizontal axis 2
modern blades 2

Important Words

  1. aerodynamic
  2. american
  3. amount
  4. annual
  5. atmosphere
  6. began
  7. blades
  8. built
  9. capture
  10. coast
  11. diameter
  12. diameters
  13. electricity
  14. entire
  15. environment
  16. equally
  17. european
  18. farm
  19. farms
  20. generating
  21. greater
  22. height
  23. higher
  24. homes
  25. horizontal
  26. households
  27. huge
  28. increase
  29. large
  30. larger
  31. largest
  32. meet
  33. meters
  34. netherlands
  35. number
  36. offshore
  37. operating
  38. power
  39. rotor
  40. similarly
  41. size
  42. sized
  43. speeds
  44. tall
  45. today
  46. travel
  47. turbine
  48. turbines
  49. typically
  50. wind
  51. windy
  52. year