Question

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 a 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.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 Complex Than You Think

D. Trees Contribute To Our Society

2.In Simard's opinion, trees _______ .

A. depend on each other

B. protect their own wealth

C. compete for survival

D. provide support for dying trees

3.We can learn from the passage that

A. “mother trees” are usually of no use to other trees.

B. Charles Darwin had the same thought as Simard.

C. people know much about the complex “tree societies”.

D. if “mother trees” are cut down, the survival for the entire forest will be affected.

4.The underlined word “it” in the last paragraph refers to .

A. how trees grow old

B. how “tree societies” work

C. how forestry industry develops

D. how young trees survive

Answer

1.C

2.A

3.D

4.B

【解析】

试题分析：本文是一篇科技文，本文主要讲述了森立的树木会通过“tree societies”把自己的财富交给下一代。并详细说明了这一发现的具体内容。

1.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可知树木和动物一样也会把财富留给下一代，树木远比人们想象的聪明，并且复杂，故选C。

2.trees survive through their co-operation and support, passing around necessary nutrition “depending on who needs it”，可知树木生存下来是靠相互依存相互帮助的，故选A。

3.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，可知当人们没意识的乱砍伐母亲树的时候会减少整个森林的生存机会，故选D。

4.

考点：考查科技类短文阅读。