题目内容

【题目】

A.A bus driver and a passenger.B.A taxi driver and a passenger.

C.A bus driver and a conductor.D.A taxi driver and his friend.

【答案】B

【解析】

【原文】

M: Good morning, Madam. Welcome to take my taxi. Where are you going?

W: To Grand Hotel. Is it far?

M: Yes, a little bit. It's about forty minutes' ride.

Q: Who are the two speakers?

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【题目】 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 mere complex(复杂的)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(合作)and support, passing around necessary nutrition(营养)"depending on who needs it". Nutrition is shared through miles of underground fungi(真菌)networks, making sure that all trees in the forest ecological(生态)system give and receive 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 head, and when one tree is cut down, it influences the whole forest.

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(矿物质)to young trees so they may continue to grow. When humans cut down “mother trees” without noticing these highly complex "tree societies" or the networks on which they feed, we are reducing they chances of survival for the 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 industrywe could make a huge difference to our environmental protection efforts for the future.

1"Mother trees" are extremely important because they .

A.look the largest in size in the forestB.pass on nutrition to young trees

C.seem more likely to be cut down by humansD.know more about the complex "tree societies"

2The underlined word "it" in the last paragraph refers to________.

A.how "tree societies" workB.how trees grow old

C.how the forestry industry developsD.how young trees survive

3What would be the best title for the passage?

A.Old Trees Communicate Like HumansB.Young Trees Are In Need Of Protection

C.Trees Are Useful to Our SocietyD.Trees Are More Admirable Than You Think

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