 230  Суффикс -еп образует глаголы со значением делать каким-либо или делаться каким-либо. wide широкий - widen расширяться) dark темный - darken затемнять(ся) weak слабый - weaken ослаблять, слабеть О УПРАЖНЕНИЕ В ЧТЕНИИ t - [tj]: century, nature, culture, [’sentjuri] fneitja] [Тслк/э] temperature, natural, cultural ['tempritja] [’naetfral] [TcAlt/rsl] ea - [i:]: heat, steam, treat, beater, 'steamer, 'treatment Прочтите и переведите текст: POWER FROM THE SUN All energy on the earth is the transformed heat of the sun. For many centuries man has used this transformed solar heat in the form of wood, coal and oil or natural gas, and in a million other ways. But. though natural fuel supplies are great, they will come to an end. So today we must ask: "Where else can we find fuel?” Is it possible to use directly the energy of the sun? The answer to this question is simple: "Yes, it is!" We now use power from the sun to diy fruits and vegetables. It can also be used to heat and boil water and even to get steam for small factories. It can be used in homes, hothouses and solar refrigerators. In Alma-Ata, solar energy collected with the help of special reflectors has been used in treatment of many diseases for nearly twenty years. It is very simple to make a solar water-heater. Blacken the bottom and sides of a box, coat it with heat-insulating material and cover it with a piece of glass. Then stand it out (1) in the sun. You will find that the temperature inside the box begins to rise rapidly even if it isn't a very hot day. The bottom of the box, blackened, transforms the light of the sun into heat, while the glass cover stops the heat from escaping. This simple "hot-box" method has long been used in making solar hotbeds and hothouses. 230 |
|
|
|
|
Последние статьи
http://comtutor.ru - Семейство онлайн курсов для изучения английского языка