full transcript

From the Ted Talk by Karen Scrivener: A concrete idea to reduce carbon emissions

Unscramble the Blue Letters


Concrete is the second most used substance on ertah after water, and for this reason, it has a significant environmental impact. If it were a country, it would rank third for emsisnois after China and USA. But in fact, concrete is an incnilrsialty low-impact material with much lower emissions of CO2 and energy per ton than other materials like iron and steel, even things like bricks. But because of the enormous volumes we use overall, it contributes to about eight percent of man-made CO2 emissions.

Concrete is an esniastel material. We need it to hsuoe people, to build roads, bridges and dams. So we can't do without it, but we can silntngifciay reduce its carbon footprint.

Open Cloze


Concrete is the second most used substance on _____ after water, and for this reason, it has a significant environmental impact. If it were a country, it would rank third for _________ after China and USA. But in fact, concrete is an _____________ low-impact material with much lower emissions of CO2 and energy per ton than other materials like iron and steel, even things like bricks. But because of the enormous volumes we use overall, it contributes to about eight percent of man-made CO2 emissions.

Concrete is an _________ material. We need it to _____ people, to build roads, bridges and dams. So we can't do without it, but we can _____________ reduce its carbon footprint.

Solution


  1. intrinsically
  2. earth
  3. emissions
  4. significantly
  5. house
  6. essential

Original Text


Concrete is the second most used substance on earth after water, and for this reason, it has a significant environmental impact. If it were a country, it would rank third for emissions after China and USA. But in fact, concrete is an intrinsically low-impact material with much lower emissions of CO2 and energy per ton than other materials like iron and steel, even things like bricks. But because of the enormous volumes we use overall, it contributes to about eight percent of man-made CO2 emissions.

Concrete is an essential material. We need it to house people, to build roads, bridges and dams. So we can't do without it, but we can significantly reduce its carbon footprint.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
portland cement 3
carbon footprint 2
lighter carbon 2


Important Words


  1. bricks
  2. bridges
  3. build
  4. carbon
  5. china
  6. concrete
  7. contributes
  8. country
  9. dams
  10. earth
  11. emissions
  12. energy
  13. enormous
  14. environmental
  15. essential
  16. fact
  17. footprint
  18. house
  19. impact
  20. intrinsically
  21. iron
  22. material
  23. materials
  24. people
  25. percent
  26. rank
  27. reason
  28. reduce
  29. roads
  30. significant
  31. significantly
  32. steel
  33. substance
  34. ton
  35. usa
  36. volumes
  37. water