题目内容
4.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.
64.What would be the best title for the passage?D
A.Old Trees Communicate Like Humans
B.Young Trees Are In Need Of Protection
C.Trees Contribute To Our Society
D.Trees Are More Complex Than You Think
65.In Simard's opinion,treesC
A.compete for survival B.protect their own wealth
C.depend on each other D.provide support for dying trees
66.We can learn from the passage thatC.
A."mother trees"are usually of no use to other trees.
B.Charles Darwin had the same thought as Simard.
C.if"mother trees"are cut down,the survival for the entire forest will be affected.
D.people know much about the complex"tree societies".
67.The underlined word"it"in the last paragraph refers toA.
A.how"tree societies"work
B.how trees grow old
C.how forestry industry develops
D.how young trees survive.
分析 本文是一篇健康环保类阅读.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.人们如果知道这些现象,就可以更好的保护这些树.
解答 64-67 DCCA
64 D 标题确定题.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.根据第一段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.故选D.
65 C 细节理解题.根据第二段trees survive through their co-operation and support,passing around necessary nutrition"depending on who needs it".可知树木的生存通过它们的合作和支持,传递必要的营养"取决于谁需要它".由此可知,树木彼此依赖.故选C.
67 C 细节理解题.根据第三段when one tree is destroyed,it affects all.可知当一棵树被摧毁,它影响了所有树.由此可知,如果"母亲树"被砍伐,整个森林的生存将受到影响.故选C.
68 A 词义猜测题."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"母亲树"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.故选A.
点评 做阅读理解时要快速的浏览全文,把握文章主旨大意,带着问题回到原文,寻找细节或概括相应的答案,最后要理清作者写作思路.
A. | come along | B. | come on | C. | come up | D. | come out |