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为了帮助大家备考托福阅读，练习更多阅读题目。提高阅读水平，下面小编给大家带来托福阅读辅导:老托福阅读真题及答案 PASSAGE30，希望对大家有所帮助!

老托福阅读文本 passage30

Butterflies are among the most extensively studied insects — it is estimated that 90 percent of the world's species have scientific names. As a consequence, they are perhaps the best group of insects for examining patterns of terrestrial biotic diversity and distribution. Butterflies also have a favorable image with the general public. Hence, they are an excellent group for communicating information on science and conservation issues such as diversity.

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