Attention! Our earth has been facing a serious threat—global warming.
According to some _____ (专家), thousands of people die of hot wave. ____________
a    (每年), and the ice in the poles has been becoming thinner and thinner ____ year by year, _____ leads to the rise of the sea level and is threatening_____ many areas of the world, especially those coastal areas. On the ____________ hand, ______ (自然) disasters, like flooding, are more or less connected with ____________the global warming, and it’s o     that all these are the punishments _______from nature. To look back, in the past five _____, that’s half a century, ____________we’ve destroyed our environment _____ random to develop the economy____________by _____ (滥用) oil and by using private cars instead of public transport.___________These r     in the rise of greenhouse gases in the atmosphere, causing____________the global warming.