英语四级阅读题库含答案解析
1.Passage One
  Global warming may or may not be the great environmental crisis of the 21                st  century,
but regardless of whether it is or isn      ’t –we won ’t do much about it.          We will argue over
it and may even, as a nation, make some fairly solemn-sounding commitments to avoid
it. But the more dramatic and meaningful these commitments seem, the less likely they
are to be observed.
  Al Gore calls global warming an          “inconvenient truth,     ” as i ...