when a plant senses that it's being eaten, it cannot walk away from trouble; on the contrary, it will release a chemical vapor that alerts other plants nearby.

　　"Their language is a chemical language, and it involves chemicals that move through the air, which are easily to be changed, and most of all are smells that we are familiar with, " Schultz explained.

　　"All plants responded to the attack by changing their chemistry to defend themselves, " Schultz recalled."But we were quite surprised to find that nearby plants also changed their chemistry to defend themselves, even though they were not part of the experiment."

　　Studies have also shown that plants under attack release pleasant chemicals.Those chemicals attract friendly insects that attack the pests eating the plant.

　　In the end, plants' ability to communicate their needs－and our ability to understand them－could help farmers reduce the use of poisonous chemicals, cut operating costs and limit damage to the environment.

　　【语篇解读】　本文是一篇科普文。主要讲述了植物的特殊语言及其功能以及这种特殊语言对农业生产可能产生的指导意义。

　　1. The recent scientific studies have shown that plants can__________ .

　　A. communicate with other living things in a

　　chemical way

　　B．hardly react to any sudden change in temperature

　　C．use a very special chemical language which is familiar to us

　　D．respond to the attack by giving off poisonous

　　chemicals

　　【解析】　事实细节题。根据第二段可知，植物可以通过化学反应来与所有有机体沟通交流。因此答案为A。

　　【答案】　A

　　2. When being eaten by a pest, the plant will__________.

　　A. walk away from trouble

　　B．change its chemistry to kill the insect

C．release a chemical vapor to "ask" other plants for help