發布時間:2012-07-19 共7頁
36. The word "threatened" in the first sentence of the first paragraph could be best replaced by.( )
A. "endangered"
B. "frightened"
C. "killed"
D. "angered"
37. Why do researchers estimate elephant numbers in an area by counting dung piles?( )
A. Because elephants are difficult to catch
B. Because it is not possible to count elephants from a plane.
C. Because it is not possible to keep track of elephants.
D. Because elephants are shy animals
38. Piles of dung can' t be relied upon when it comes to estimating elephant numbers because.( )
A. they are different in size
B. they scatter an over the region.
C. they are different in decay rate.
D. they are different in quality.
39. According to Plumptre, the region over which a dung pile census is carried out should be( )
A. small enough
B. well protected.
C. carefully monitored.
D. large enough
40. The first word "He" in paragraph 6 refers to.( )
A. Andrew Plumptre
B. Katy Payne.
C. Anthony Chifu Nchanji.
D. the writer of the article.