题型：阅读理解 题类：模拟题 难易度：普通
辽宁省沈阳市东北育才学校2019届高三英语第五次模拟考试试卷（音频暂未更新）
When you think of a jungle adventure, what comes to mind? Are they gorgeous birds flying through the air or monkeys jumping through the forest? Do you think of plants? Probably not. After all, plants aren't the most exciting living things in the world. They just sit there and absorb water and nutrients from the soil and the sun. But actually there are also some plants that eat insects and even small animals from time to time. We call these unusual things carnivorous(食肉性) plants. Although most carnivorous plants eat small insects, larger carnivorous plants in some hot and wet areas have been known to capture rats, birds, and frogs.
One carnivorous plant many people are familiar with is the Venus flytrap. Its unique “jaws” will function when flies and other small insects touch it. Once its jaws close on its victim, it produces a chemical substance that breaks down the insect and absorbs the insect's nutrients.
There are several other examples of carnivorous plants. For example, some plants can catch insects with their leaves, which are like a tall narrow wineglass, while some trap their victims with sticky tentacles(触手). And some growing in ponds and streams absorb their victims like underwater cleaners. Carnivorous plants tend to grow in areas where the soil is very thin and lacks necessary nutrients. These plants must find other sources for the nutrients they need.
Trapping and eating insects allows these unique plants to survive. Unfortunately, human and environmental factors continue to threaten the limited environments where you can find wild carnivorous plants.
Still for many people, the thought of a plant eating an animal seems very strange. In fact, more than one person has turned the idea into a scary story or movie. Carnivorous plants don't pose any danger to humans, though. Unless you're the size of a tiny insect, you don't have to worry about falling prey to a Venus flytrap.
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