full transcript

From the Ted Talk by Kathy Hannun: How to heat your home without hurting the planet

Unscramble the Blue Letters

Refined natural gas is then delivered to homes and businesses via an invisible interstate highway system millions of miles long. It's iinvbslie because it's underground. There's so much pipeline in this system that entire setel mills have been built only to produce pipeline for this system. And because there are millions of miles of gas getting pmepud beneath us at high pressure at all times, engineers send these intelligent roobts claled "smart pigs" through the pipelines to check for stafey defects. Doing this is called "pigging the pipeline."

Open Cloze

Refined natural gas is then delivered to homes and businesses via an invisible interstate highway system millions of miles long. It's _________ because it's underground. There's so much pipeline in this system that entire _____ mills have been built only to produce pipeline for this system. And because there are millions of miles of gas getting ______ beneath us at high pressure at all times, engineers send these intelligent ______ ______ "smart pigs" through the pipelines to check for ______ defects. Doing this is called "pigging the pipeline."

Solution

  1. safety
  2. steel
  3. pumped
  4. invisible
  5. called
  6. robots

Original Text

Refined natural gas is then delivered to homes and businesses via an invisible interstate highway system millions of miles long. It's invisible because it's underground. There's so much pipeline in this system that entire steel mills have been built only to produce pipeline for this system. And because there are millions of miles of gas getting pumped beneath us at high pressure at all times, engineers send these intelligent robots called "smart pigs" through the pipelines to check for safety defects. Doing this is called "pigging the pipeline."

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
natural gas 3
heating system 2
conventional heating 2
geothermal energy 2
geothermal heating 2

Important Words

  1. beneath
  2. built
  3. businesses
  4. called
  5. check
  6. defects
  7. delivered
  8. engineers
  9. entire
  10. gas
  11. high
  12. highway
  13. homes
  14. intelligent
  15. interstate
  16. invisible
  17. long
  18. miles
  19. millions
  20. mills
  21. natural
  22. pipeline
  23. pipelines
  24. pressure
  25. produce
  26. pumped
  27. refined
  28. robots
  29. safety
  30. send
  31. steel
  32. system
  33. times
  34. underground