Прочитайте текст и выполните задания. Solar energy 1. Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of different technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on the Earth. Only a minuscule fraction of the available solar energy is used. 2. Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy’s uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes. To harvest the solar energy, the most common way is to use solar panels. 3. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.Определите основную идею текста.

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Прочитайте текст и выполните задания.
Solar energy
1. Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of different technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on the Earth. Only a minuscule fraction of the available solar energy is used.
2. Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy’s uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes. To harvest the solar energy, the most common way is to use solar panels.
3. Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.

Определите основную идею текста.

✓ Nowadays there exist different solar technologies but they don’t use all available solar energy being a renewable energy source.

Для того чтобы правильно выполнить задание, следует знать алгоритм обработки текстовой информации и, прочитав текст, выделить главные компоненты содержания текста, то есть определить основную идею текстовой информации.
В тексте говорится о том, что
1) солнечная энергия представляет собой ценный источник возобновляемой энергии, используемый людьми с давних времен (фрагмент 1);
2) в настоящее время существуют различные технологии солнечной энергии («Solar technologies are… either passive solar or active solar…» – фрагмент 2);
3) несмотря на то, что солнечная энергия активно применяется сегодня, используется лишь малая доля этой энергии («A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, high temperature process heat for industrial purposes» – фрагмент 2; «Only a minuscule fraction of the available solar energy is used» – фрагмент 1).
Таким образом, правильный вариант ответа – «Nowadays there exist different solar technologies but they don’t use all available solar energy being a renewable energy source» («Сегодня существуют различные технологии солнечной энергии, но они не используют всю доступную солнечную энергию, являющуюся возобновляемым источником энергии»).

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