PTE阅读练习:寻找青蛙身上的真菌杀手

随着PTE考生对PTE口语和PTE听力的重视,大家口语和听力的分数得到极大提高,但是PTE阅读渐渐成为考生们新的难题。墨尔本悉尼文波PTE特别为PTE考生们挑选了适合练习PTE阅读的文章,主题,内容,长度都与PTE阅读题中的文章相似。激活学过的词汇,更新新的词汇,提高阅读速度,全面提升自己的阅读能力。

Learning what makes these frogs special could hold a key to managing the fungal scourge.

Amphibians include frogs, toads, salamanders and newts. And overall, notes Savage, “Amphibians are in trouble.” A recent study showed that populations have been shrinking for more than four in every 10 of the world’s amphibian species. Nearly one-third are threatened with extinction. And that could be bad for the environment. These animals are an important part of the food chain. They eat pesky insects, like flies and mosquitoes. Amphibians, in turn, are an important food source for many birds, reptiles and mammals.

Global loss of wetlands and other critical amphibian habitat may be causing some populations to shrink. A frog disease is causing major declines too. Its source is a single-celled fungus known as chytrid (KIH-trid). Fungal diseases are known as mycoses (My-KO-sees). So this one is called chytridiomycosis (Kih-TRID-ee-oh-my-KO-sis).

In the past few decades, this infection has been turning up all over the world. The fungus lives in wetlands and ponds. No one knows exactly where chytrid first came from. But once it infects their skin, many frogs now sicken and die.

The big question has been why some frogs have been spared. Savage now thinks she has an answer: their immune system.

Fungal scourge:真菌病害

Amphibians: 两栖类

Shrink: 收缩

Extinction:灭绝

Food chain: 食物链

Pecky insects:讨厌的昆虫,害虫

Reptile: 爬虫

Mammal: 哺乳动物

Wetlands: 湿地

Habitat: 栖息地

Fungus: 真菌

Chytrid:蛙壶菌

Sicken: 患病

Immune system: 免疫系统

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