必修① UNIT 5 主题训练 人与环境、人与动植物（Word练习）-【新高考方案】2024高考英语一轮复习（新教材 新高考 外研版）

色学科网书城■ 品牌书店·知名教辅·正版资源 b.zxxk.com 您身边的互联网+敷辅专家 UNT5主题训练人与环境、人与动植物 1.阅读理解 (2023·日照高三一模)Plants don't have ears or a central nervous system,but new research out of the University of Missouri has demonstrated that they might still have the ability to "hear".More specifically,plants have been shown to exhibit an immune (response to the mere sound of a hungry insect. For the study,researchers played the sound of a caterpillar()chewing to a group of plants,which caused slight vibrations (on the plants'leaves.The plants were able to recognize these vibration patterns as danger,and responded by increasing the appropriate immune response.In other words,it appears that plants can "hear"themselves being chewed 0n. Researchers assume that plants achieve this remarkable ability thanks to proteins that respond to pressure found within their cell membranes ()Vibrations cause pressure changes within the cell,which can change the behavior of the proteins;however,additional study will be required to confirm or deny this theory. Once researchers identify the exact mechanisms at play in this process,it could lead to advances in crop protection.Farmers could potentially learn to use sound to cause a plant's natural chemical defenses against insect threats,rather than turning to poisonous chemicals. "We can imagine applications of this where plants could be treated with sound or genetically engineered to respond to certain sounds that would be useful for agriculture," said study author Heidi Appel. The study adds to the growing list of ways that plants have been shown to sense their environments.They are not the boring organisms that many people assume they are.For instance,some plants are able to communicate with each other and signal upcoming danger to their neighbors by releasing chemicals into the air.Plants can respond to light(think about sunflowers)and temperature.Some can even respond to touch,such as the Venus flytrap which snaps shut when an insect stimulates its hairs. 语篇解读：本文