C.The author often offered strangers a ride on his motorbike

D

Would it surprise yoto 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.

32.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 YoThink

33.In Simard's opinion, trees _______

A.compete for survival B.depend on each other

C.protect their own wealthD.provide support for dying trees

34.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. “mother trees” affect the survival for the entire forest.

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

A.how “tree societies” workB.how trees grow old

C.how forestry(林业) industry developsD.how young trees survive

第二节(共5小题;每小题2分，满分10分)

根据根据短文内容，从短文后的选项中选出能坡入空白处的最佳选项。选项中有两项为多于选项。(请将此部分答案填涂到答题卡71-75题相应位置)

Sports for a new generation

Introduction

We often hear adults complaining that teenagers aren’t active enough and spend all their time sitting in front of computers, but one reason for this might be that teenagers are tired of doing the same sports – we want something a bit more lively.

The same old ...

For a lot of teens, the idea of hitting a ball over a net, throwing a ball through a hoop or hitting a ball with a stick, is no longer that interesting. 36

Why Teenup?

The good news for teenagers is that this is exactly what we provide at Teenup! 37 The best thing about it is that we also provide experienced trainers to help yolearn the sport and get the most of it.

38

So, come along today and pick from a range of different sports. We offer kitesuring, wall climbing, paintballing, archery(箭术)bungee jumping and much more ...

Dangerous?

Sure, there is a possibility of danger – but life is full of dangers. To make your parents worry less, all our trainers are qualified (有资格的) we have enough insurance cover. Our safety record is second to none. 39

Join us

40 I have something for yoand that’ll make yonever want to go back to your boring life such as just watching TV or playing computer games. Come on – we dare you!

A. What we have

B. When to begin