full transcript

From the Ted Talk by David Sedlak: 4 ways we can avoid a catastrophic drought

Unscramble the Blue Letters

For example, historically, Los Angeles has obtained about a third of its water supply from a massive aquifer that underlies the San Fernando Valley. Now, when you look at the water that comes off of your roof and runs off of your lawn and flows down the gutter, you might say to yourself, "Do I really want to dnirk that stuff?" Well, the asewnr is you don't want to drink it until it's been treated a little bit. And so the chllaenge that we face in urban water harvesting is to capture the water, clean the wetar and get it underground.

Open Cloze

For example, historically, Los Angeles has obtained about a third of its water supply from a massive aquifer that underlies the San Fernando Valley. Now, when you look at the water that comes off of your roof and runs off of your lawn and flows down the gutter, you might say to yourself, "Do I really want to _____ that stuff?" Well, the ______ is you don't want to drink it until it's been treated a little bit. And so the _________ that we face in urban water harvesting is to capture the water, clean the _____ and get it underground.

Solution

  1. water
  2. challenge
  3. drink
  4. answer

Original Text

For example, historically, Los Angeles has obtained about a third of its water supply from a massive aquifer that underlies the San Fernando Valley. Now, when you look at the water that comes off of your roof and runs off of your lawn and flows down the gutter, you might say to yourself, "Do I really want to drink that stuff?" Well, the answer is you don't want to drink it until it's been treated a little bit. And so the challenge that we face in urban water harvesting is to capture the water, clean the water and get it underground.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
water supply 9
seawater desalination 8
urban water 7
drinking water 6
water problem 6
los angeles 3
water resources 3
sewage treatment 3
santa ana 3
lake mead 2
las vegas 2
lake level 2
modern city 2
catastrophic drought 2
local sources 2
local water 2
san jose 2
start building 2
recycled water 2
treatment plant 2
organic chemicals 2
hydrogen peroxide 2
ultraviolet light 2
treatment wetland 2
ana river 2
water conservation 2
desalination plant 2
water system 2

ngrams of length 3

collocation frequency
urban water problem 5
local water supply 2
santa ana river 2
seawater desalination plant 2

Important Words

  1. angeles
  2. answer
  3. aquifer
  4. bit
  5. capture
  6. challenge
  7. clean
  8. drink
  9. face
  10. fernando
  11. flows
  12. gutter
  13. harvesting
  14. historically
  15. lawn
  16. los
  17. massive
  18. obtained
  19. roof
  20. runs
  21. san
  22. stuff
  23. supply
  24. treated
  25. underground
  26. underlies
  27. urban
  28. valley
  29. water