2. 外语
  3. In July of 1970, the White House and Congress worked together to establish the Environmental Protection Agency (EPA) in re

In July of 1970, the White House and Congress worked together to establish the Environmental Protection Agency (EPA) in re

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问题      In July of 1970, the White House and Congress worked
together  to  establish  the  Environmental  Protection  Agency
(EPA) in response to the growing public demand for cleaner
water, air and land. Prior the establishment of                            【S1】______   
the EPA, the federal government is not structured to make                  【S2】______   
a coordinated attack on the pollutants that harm human health
and degrade the environment. The EPA was assigning the task                【S3】______   
of repairing the damage already done to the natural environ
ment and to establish new criteria to guide Americans in making
a cleaner environment a reality.
     Bom in the awake of elevated concern about environmental               【S4】______   
mental pollution, the U.S. Environmental  Protection Agency
opened its doors in downtown Washington, D.C., on December 2,
1970. EPA was established to consolidate in one agency the variety          【S5】______   
of federal research, monitoring, standard-setting and
enforcement activity to ensure environmental protection.                    【S6】______   
EPA’s mission is to protect human health and to  safeguard
the naturally environment-air, water, and land-upon                         【S7】______   
which life depend. For more than 30 years, the EPA                          【S8】______   
has been working for a cleaner, healthier environment for the
American people.
     From regulating auto emissions to ban the use of                       【S9】______   
DDT; from cleaning up toxic waste to protecting the ozone
layer; from increasing recycling to revitalizing inner-city brown-
fields, EPA’s achievements have resulted in cleaner alr, purer
water, and well protected land.                                             【S10】______   
【S2】
选项
答案is→was
解析 时态错误。根据时间状语及上下文的时态,此处应该用过去时。
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