2006年職稱英語等級(jí)考試?yán)砉B模擬題及解答(6)

練習(xí)：
     1．Paragraph 2
     2．Paragraph 3
     3．Paragraph 4
     4．Paragraph 5
     A Killing Power of Ancient Volcanic Eruptions
     B Association of Mass Extinctions with Volcanic Eruptions
     C Calculation of the Killing Power of Older Eruptions
     D A Mass Extinction
     E V_0lcanic Eruptions That Caused no Mass Extinction
     F Accounting for the Killing Power of Older Eruptions
     5．Older eruptions were more devastating
     6．The Permian extinction is used to illustrate
     7．The cause of the extinction of dinosaurs
     8．Courtillot rejects
     A than more recent ones
     B the killing efficiency for older eruptions
     C has remained controversial
     D Wignall’s calculations as acceptable
     E has been known to us all
     F his ideas