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Thursday, October 1, 2020

Reading and writing fill in the blanks practice exercise. Below is text with blanks. Choose the correct word for each blank to complete the text.

Solar panels (1) ………………… convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. M.I.T.’s Daniel Nocera wants to bring photosynthesis to everyone’s home. Solar power only works, (2) …………………., when the sun shines. Nocera’s idea is to take solar power and use it to for electrolysis—to break apart water into (3) …………………….. and oxygen—which then could be (4)……………….. when needed in a fuel cell. The problem is that current electrolyzer (5) …………………….. takes a lot of energy in a harsh, alkaline environment. That’s because, it’s hard to get the oxygen out of the water, not the hydrogen.  Nocera designed a new catalyst for that oxygen step that works at room temperature and (6) ……………….., in a glass of water. When a current runs through an (7) …………………, phosphate and cobalt in the water form a thin film on that electrode.

(1) instinctively, typically, unprecedentedly, simplistically
(2) axially, satiety, obviously, subserviently,
(3) hydrogen, lithesome, magnet, myosin
(4) intertwined, divide, oversight, recombined
(5) technology, abundantly, mycology, destiny
(6) better, whither, Zephyr, pressure
(7) electrode, farrowed, mellowed, selfhood

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