Hair-like growths along the pitcher walls ensure that nothing cab escape, and the digestive enzymes can get to work. A tiny insect can be digested in a few hours, but a fly takes a couple of days.

　　Some of these pitchers are large enough to hold two gallons. Meateating plants only eat people in science fiction movies, but sometimes a bird or other small animals will discover that a pitcher plant isn’ t a good place to get a drink.

　　[语篇解读]　本文是一篇说明文，介绍了一些特别的植物——靠捕食动物获得生长所需养分的“食肉植物”。

　　1．From the first paragraph, we can know that bladderworts can ________.

　　A. capture 50 small insects in a second

　　B. capture an insect in the shortest time

　　C. be found floating on a quiet lake

　　D. digest an insect in 1/50 of a second

　　[解析]　细节理解题。第一段指出，bladderworts能在1/50秒的时间内捕获一只小昆虫，是植物中已知的捕获动物速度最快的，因此选B。

　　[答案]　B

　　2．If the trap door of a meateating plant is closed, the plant ________.

　　A. is fooling insects into taking a sip

　　B. is producing nectar

　　C. is tempting insects to come close

　　D. is enjoying a dinner

　　[解析]　细节判断题。第二段说，一旦“陷阱门”将猎物关起来，类似于人胃里的那些消化酶就开始慢慢地消化它了，由此判断D正确。

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