The return of the black-footed ferret

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题目与答案

1. 14 The black-footed ferret shares most characteristics with its relative, the _____ .

   答案：Siberian polecat

   原文定位：The Siberian polecat looks more similar to the black-footed ferret, and leads a similar life on open grasslands and semi-desert regions across Russia, China and Siberia

   同义替换：「shares most characteristics」↔「looks more similar」

2. 15 North American ferrets are thought to have originally come from _____ .

   答案：Europe

   原文定位：Ferrets probably evolved in Europe between three and four million years ago, and dispersed into North America across an ice-age land bridge at least two million years ago

   同义替换：「originally come from」↔「evolved in」

3. 16 The _____ is the black-footed ferret's primary source of food.

   答案：prairie dog

   原文定位：The black-footed ferret's history in North America is inextricably linked to the creature which became almost its sole prey - the prairie dog

   同义替换：「primary source of food」↔「sole prey」

4. An appeal for evidence of black-footed ferrets was published.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1874

   原文定位：Then, in 1874, a Dr Elliott Coues issued a request for specimens through the popular magazine The American Sportsman

   同义替换：「appeal for evidence」↔「issued a request for specimens」

5. A scheme for releasing captive-born black-footed ferrets into the wild was launched.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1991

   原文定位：A reintroduction programme began in 1991

   同义替换：「scheme for releasing captive-born ferrets」↔「reintroduction programme」，「launched」↔「began」

6. The black-footed ferret first appeared in a scientific work.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1851

   原文定位：Black-footed ferrets were not officially recognized by scientists until 1851, when a description and drawing of one featured in a book by the renowned naturalist John James Audubon and Reverend John Bachman

   同义替换：「first appeared in a scientific work」↔「featured in a book」

7. The discovery of a single black-footed ferret led to renewed hope for the species.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1981

   原文定位：In 1981, a farm dog called Shep carried an odd-looking creature to its owner's ranch house;The dog had found a black-footed ferret-which led to efforts again being made to save the species

8. North America's last wild-born black-footed ferrets were taken into captivity.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1985

   原文定位：In 1985 in a final bid to save the species, the remaining 18 individuals in the colony were tapped for a new captive-breeding programme

9. Efforts to save the black-footed ferret were officially announced as having failed.
   • 1851
   • 1874
   • 1907
   • 1974
   • 1979
   • 1981

   答案：1979

   原文定位：Finally, in January 1979, the last ferret in a captive-breeding programme died-making the black-footed ferret the first mammal to be declared extinct in the Northern Hemisphere in the 20th century

10. reasons for the sharp decrease in black-footed ferret populations.
    • A
    • B
    • C
    • D
    • E
    • F

    答案：E

    原文定位：As agriculture and ranching expanded, the black-footed ferret's main prey, the prairie dog, became a target for extermination, and was eventually eradicated from 98% of its original range. The result was devastating for black-footed ferret populations throughout the continent

11. the procedure by which black-footed ferrets are taught to survive in the wild.
    • A
    • B
    • C
    • D
    • E
    • F

    答案：H

    原文定位：Before they can be reintroduced into their natural habitat, captive ferrets have to learn to hunt and escape from predators;they have to be tempted into the holes with food

12. mention of doubts about whether there was such an animal as a black-footed ferret.
    • A
    • B
    • C
    • D
    • E
    • F

    答案：D

    原文定位：For over two decades, no other specimens were seen, and scientists even began to question their existence

    同义替换：「doubts about whether there was such an animal」↔「question their existence」

13. reference to a site which is ideal for the release of black-footed ferrets into the wild.
    • A
    • B
    • C
    • D
    • E
    • F

    答案：I

    原文定位：The Janos area on the US-Mexico border is the obvious place to reactivate the continent's wild black-footed ferret population, being one of the most important remaining grassland ecosystems in the Americas, and home to an abundance of prairie dogs