Would it surprise you to learn that,like animals,trees communicate with each other and pass on their wealth to the next generation?
　　UBC Professor Simard explains how trees are much more complex than most of us ever imagined.Although Charles Darwin thought that trees are competing for survival of the fittest,Simard shows just how wrong he was.In fact,the opposite is true:trees survive through their co-operation and support,passing around necessary nutrition"depending on who needs it".
　　Nitrogen(氮)and carbon are shared through miles of underground fungi(真菌)
　　networks,making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy.This hidden system works in a very similar way to the networks of neurons(神经元)in our brains,and when one tree is destroyed,it affects all.
　　Simard talks about"mother trees",usually the largest and oldest plants on which all other trees depend.She explains how dying trees pass on the wealth to the next generation,transporting important minerals to young trees so they may continue to grow.When humans cut down"mother trees"with no awareness of these highly complex"tree societies"or the networks on which they feed,we are reducing the chances of survival for the entire forest.
　　"We didn't take any notice of it"Simard says sadly."Dying trees move nutrition into the young trees before dying,but we never give them chance."If we could put across the message to the forestry industry,we could make a huge difference towards our environmental protection efforts for the future.
　　1、"Mother trees"are extremely important because they.
　　A.look the largest in size in the forest
　　B.pass on nutrition to young trees
　　C.seem more likely to be cut down by humans
　　D.know more about the complex"tree societies"
　　参考答案：B
　　参考解析：根据文章第四段的句子：She explains how dying trees pass on the wealth to the next generation,transporting important minerals to young trees so they may continue to grow.可知mother trees之所以重要是因为它们将营养传给小树，选B。
　　2、The underlined sentence"the opposite is true"in Paragraph 2 probably means that trees.
　　A.compete for survival
　　B.protect their own wealth
　　C.depend on each other
　　D.provide support for dying trees
　　参考答案：C
　　参考解析：句意理解题：根据文章第二段的句子：trees survive through their co-operation and support,passing around necessary nutrition"depending on who needs it".可知上文提到达尔文的适者生存的理论，而相反的是树是彼此依赖的，所以选C。
　　3、What would be the best title for the passage?
　　A.Old Trees Communicate Like Humans
　　B.Young Trees Are In Need Of Protection
　　C.Trees Are More Awesome Than You Think
　　D.Trees Contribute To Our Society
　　参考答案：C
　　参考解析：根据全文内容，可知文章介绍树和树之间不是你死我活的竞争关系，它们之间是相互依赖的，快要死的树会将自己的营养传给小树让它们更好的成长，从第一段的句子：Would it surprise you to learn that,like animals,trees communicate with each other and pass on their wealth to the next generation?
　　可知作者想要表达的是树要比我们想象的要更加令人惊叹，所以选C。
　　4、The underlined word"it"in the last paragraph refers to.
　　A.how"tree societies"work
　　B.how trees grow old
　　C.how forestry industry develops
　　D.how young trees survive
　　参考答案：A
　　参考解析：it出现在文章最后一段：实际上it指代的是第四段提到的内容，人们砍倒快死的mother trees是不知道树的社会的依存关系，可知it指的是“树的社会”是怎么运作的，所以选A。
　　参考译文：
　　你会惊讶地发现，树木和动物一样，彼此交流，并把财富传给下一代吗？
　　UBC教授西马尔解释了树木比我们大多数人想象的要复杂得多。尽管查尔斯达尔文认为树木在为适者生存而竞争，但西马尔证明了他是多么的错误。事实上，事实恰恰相反：树木通过它们的合作和支持生存下来，传递必要的营养“取决于谁需要”。
　　氮和碳通过数英里的地下真菌共享。
　　网络，确保森林生态系统中的所有树木都给予和接受适当的数量，以保持它们的健康。这个隐藏的系统的工作方式与我们大脑中的神经元网络非常相似，当一棵树被摧毁时，它会影响所有人。
　　西马尔谈到“母树”，通常是所有其它树木所依赖的最大和最古老的植物。她解释了垂死的树木如何将财富传递给下一代，将重要的矿物质输送给幼树，使它们能够继续生长。当人类在没有意识到这些高度复杂的“树木社会”或它们赖以生存的网络的情况下砍伐“母树”时，我们正在减少整个森林的生存机会。
　　“我们没有注意到它，”西马尔悲伤地说。垂死的树木在死亡前会把营养转移到幼树上，但我们从不给它们机会。”如果我们能把这一信息传达给林业界，我们就能对我们未来的环保工作做出巨大的改变。