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You will hear a recording.Fill the missing word in each blank.

It was in the 1980s that many of us became aware that small …………… actions could harm the planet itself. Hairsprays were cited as one of the causes of the hole in the Antarctic ozone layer. People were told to wear sunscreen to …………. skin cancer as the layer thinned and more UV light got through. By 1987 world governments had agreed to ban most of the ozone-eating chemicals. The World Meteorological Organisation say at last the ozone layer is ……………… signs of thickening, although it will be a while before they know if the hole is actually healing. The same organisation …………….. earlier this week that climate change was heading in the opposite direction with ……………… gases in the atmosphere at a record level.

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Anwsers：

1.individual 2.avoid 3.showing 4.warned 5.greenhouse

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Raise International Education睿思国际教育，成立于2014年，专注于雅思和PTE教学。新加入的PTE教学，追求“稳中有升，步步为营”的理念，通过提高英语能力，并结合考试技巧，帮助学生们快速通过考试，达成自己的梦想。