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（神經(jīng)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.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 Contribute To Our Society

D. Trees Are More Complex Than You Think

2.In Simard's opinion, trees _______

A. compete for survival

B. protect their own wealth

C. depend on each other

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

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

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

Answer 1

1.D

2.C

3.C

4.A

【解析】

試題分析：文章介紹了樹和樹之間不是你死我活的競爭關(guān)系，而是相互依賴的，快要死的樹會將自己的營養(yǎng)傳給小樹讓它們更好的成長，人們?nèi)绻�知道這些現(xiàn)象，就可以更好的保護(hù)這些樹。

1.標(biāo)題歸納題：，從第一段的句子：Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?和第二段 UBC Professor Simard explains how trees are much more complex than most of us ever imagined . 可知文章介紹樹和樹之間不是你死我活的競爭關(guān)系，而是相互依賴的，快要死的樹會將自己的營養(yǎng)傳給小樹讓它們更好的成長。樹木比我們想象的復(fù)雜。所以答案選D。

2. 細(xì)節(jié)理解題。根據(jù)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".可知上文提到達(dá)爾文的適者生存的理論，而相反的是樹是彼此依賴的，答案選C。

3.推理判斷題：根據(jù)文章第四段的句子：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mother trees被砍斷會影響整個森林的生存，C項正確。

4. trees是不知道樹的社會的依存關(guān)系，可知it指的是“樹的社會”是怎么運(yùn)作的，所以選A。

考點：環(huán)保類文章