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(2)
Have you heard of “One Liter of Light”? It is a global movement focusing on providing those who
live with limited or no _21._ with a cheap and sustainable light source. Volunteers at this organization
teach 22. . communities all over the world how to make use of recycled plastic bottles to create
23. · __lights for their houses, stores, and streets. One Liter of Light has 24. more than 350,000
bottle lights in over fifteen countries. 25. the technology that they use is recognized by UNESCO
and has been applied in refugee camps. 26. Alfredo Moser's invention one step further, the founder
of One Liter of Light, Illac Diaz, attached LED lights and small solar-energy batteries to the bottles. It
only takes three hours of exposure to sunlight for these _27.__ to collect enough energy for a whole
night. The success of this 28. lies in effective use of social media. 29._sharing videos about the
lights on YouTube, they gave suggestions, exchanged user experiences, and also attracted more volunteers.
30. Diaz mentioned, he has created a module to meet the specific needs of different areas.
21. (A) electronics (B) lighters (C) electricity (D) measure
22. (A) remote (B) plastic (C) mechanic (D) green
23. (A) solar-powering (B) solar-powered (C) wind-powering (D) wind-powered
24. (A) repaired (B) proved (C) remained (D) refilled