2. 外语
  3. Recently more and more attention has been focused to the problem of preserving the

Recently more and more attention has been focused to the problem of preserving the

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问题        Recently more and more attention has been
   focused to the problem of preserving the                                            【S1】______
   environment. The fact that a Government Ministry
   being called the Department of the Environment has                                  【S2】______
   been created shows how unimportant the issue is                                     【S3】______
   considered to be.
       Over the past thirty years or so the quality of .
   many people’s lives have deteriorated in some respects                              【S4】______
   because of technological progress. Those, people living
   neat airports are constantly attacked by the noise of
   increasingly larger and more powerful jet aircraft
   taken off and landing. Tile motor car has been                                      【S5】______
   responsible for many changes in the environment. On
   the one hand it has brought mobility to millions of
   people, but on the other hand it has taken rise to the                              【S6】______
   construction of more noisy reads and has polluted the
   atmosphere with exhaust fumes.
       While towns and cities have become larger and
   uglier and more dense populated. The rural areas have                               【S7】______
   lost most of their population owing to the need for
   less workers in agriculture. The countryside has also                               【S8】______
   been affected by the largescale use of insecticides. For
   one thing the killing of insects has resulted from a loss                           【S9】______
   of balance in the ecology. Many people are afraid that
   fruit and vegetables sprayed with chemicals may have
   some poisonous effect on the people who eat if.                                     【S10】 ______
【S1】
选项
答案to改为on
解析 focus on“集中”，如：focus on one’s allention/efforts on a problem集中注意力(努力)于某一问题。
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大学英语六级

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