номер 4, страница 90 - гдз по английскому языку 7 класс учебник Goldstein, Jones

4 Match the words in bold from the text to the numbers in the diagram.

A greenhouse is a structure made of glass or plastic. Farmers and gardeners use them for growing plants in.

A greenhouse changes sunlight into heat. The Sun's radiation goes through the glass or plastic walls and roof as light. This heats up the air, then the walls and roof keep the heat inside.

When we talk about the greenhouse effect, we mean the planet is working like a greenhouse. The Sun's radiation enters the Earth's atmosphere and heats up the Earth's surface. Thermal, infra-red radiation comes from the Earth's surface, but gases in the atmosphere don't allow it all to escape. In fact, they reflect it back at the Earth like the walls and roof of a greenhouse. This causes what scientists call 'global warming'.

Different gases cause the greenhouse effect. The most common are water vapour, carbon dioxide (CO₂), methane, nitrous oxide and ozone. All of these gases exist naturally in our environment. Without them, the Earth would be too cold to support life – but too much of them can make temperatures rise. In fact, nowadays, the average global surface temperature is almost a degree higher than it was a hundred years ago.

4. Соотнесите слова, выделенные жирным шрифтом в тексте, с номерами на диаграмме.

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