Charles Darwin, over 150 years ago, imagined a world far busier, noisier and more intimate(亲密的) than the world we can see and hear. Our senses are weak. There's a whole lot going on.

　　语篇解读：研究发现，植物受到昆虫攻击时，会通过两种方式实施自我保护：第一种是释放一种化学物质，让周围的邻居接收后减少伤害；第二种是产生一种香味引来袭击者的天敌消灭袭击者。

　　1．What does a plant do when it is under attack?

　　A．It makes noises.

　　B．It gets help from other plants.

　　C．It stands quietly.

　　D．It sends out certain chemicals.

　　[解析]　细节理解题。由文章第一段中的"...young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be an alarm."可知，当植物受到攻击时，会释放出某种化学物质。故选D项。

　　[答案]　D

　　2．What does the author mean by "the tables are turned" in Paragraph 3?

　　A．The attackers get attacked.

　　B．The insects gather under the table.

　　C．The plants get ready to fight back.

　　D．The perfumes attract natural enemies.

[解析]　词义猜测题。后句对该短语进行了解释：The attacker who was lunching now becomes lunch.(原来正在吃午餐的袭击者现在变成了午餐)，也就是A项所说的袭击者受到了攻击。故选A。