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111Unit8 Protecting the Environment 课堂练习Radio said yesterday that a very serious sand-dust storm,maybe the most serious one this year,attacked the whole North China.All the planes in and out stopped flying and all freeways were closed.It was said to grow from the central deserts of Mongolia for lack of rain in this area for almost ten months.News from the Peoples Daily:Owing to peoples activities in the earth,the amount of carbon dioxide in the atomosphere is increasing and this leads to so-called greenhouse effect,that is,the temperature of the air is rising.Some icebergs in Antarctic and in the Arctic Ocean are melting and collapsing.An unexpected snow fell in Europe this August,and this has never happened before at this time of year.And worse still,the hole of Ozonophere over Antarctic is becoming larger day by day.From the above we can see that protecting the environment is not only a must for our life,but also a life and death problem for our existence.Please think of the following two questions：1.Is pollution serious in China judging from the surroundings in your community?2.Some people are making an urgent appeal “serving our earth”.Why?Unit8 Protecting the Environment 合作与讨论The population is increasing very fast,especially in developing countries and this calls for development of industry and agriculture.With the development more and more pollution is produced.Whats more,for lack of environmental awareness,people throw rubbish casually,and for lack of money,the rubbish cant be delt with,lying everywhere and causing damage to our surroundings day and night.Now discuss in groups the following questions about pollution.1.How many kinds of pollution are there in the world?2.How serious is pollution in your community?3.Whats like peoples awareness of pollution around you?4.What measures have been taken to stop pollution in your community or city?111
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