(单选题)

What is the main purpose of the passage?

A.To explain a study method on worms.

B.To introduce the diet of a special worm.

C.To present a way to break down plastics.

D.To propose new means to keep eco-balance.

参考答案：C

参考解析：

主旨大意题。根据第一段最后一句“So far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.”可知，有一种新的方法被用于分解塑料。再根据最后一段最后一句“But she expects using the chemical in some kind of industrial process — not simply ‘millions of worms thrown on top of the plastic.’”可知，Bertocchini希望将这种方法推广到工业中。由此可以推知写作意图为介绍一种分解塑料的方法。故选C。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语