六级练习2014.11.28
[audio]http://sound.yywz123.com/tingbbs/cet6/cet620141128.mp3[/audio]Among the 100 species in the campaign is the Sharp-snouted Day Frog. The brown Australian native with pale flecks on its back and an olive-yellow belly, was last seen in 1997. Researchers think it's the victim of a pathogenic fungus _________________________________, wiping out entire amphibian populations in the area, and in some cases, whole species.
Robin Moore heads the Search for the Lost Frogs Campaign, which is sponsored by Conservation International and the International Union for the Conservation of Nature. He says among the most curious on the list is the once abundant Golden Toad, which lived in a protected area of Costa Rica and disappeared in a little over a year.
"In 1989, _________________________________. And that was the last individual ever seen." Teams are also looking for the Gastric Brooding Frog, last spotted in 1985. Moore says what's unique about this Australian amphibian is its way of breeding. "The females actually swallow the eggs and _________________________________which then hatch out through her mouth."
vocabulary
pathogenic: adj. 致病的
fungus:n.真菌，真菌类植物
amphibian :n.两栖动物；水陆两用飞机和车辆
Costa Rica:n. 哥斯达黎加（拉丁美洲）
hatch out:孵化
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