Wood is becoming in the country and a new material must be found to replace it. ——青夏教育精英家教网—

摘要： Wood is becoming in the country and a new material must be found to replace it. 6

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阅读下面短文，从短文后各题所给的四个选项（A，B，C，D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

For centuries, magicians have used various ways to shock the audience. We all have seen how a 36 performer carefully steps 37 a bed of burning coals -- barefoot. Then he walks across 38 a single burn on his feet. Is it mind over matter, or is it just physics? As it turns __39 , walking on burning coals isn’t that hot as 40 . “The coals are hot enough to 41__ you, but if you walk quickly across them you 42 being burned.” says Jonathan Hall, a physician at Penn State University in Eric Pennsylvania.

That’s because some coals are made 43 burning wood chips. Wood has two 44__ properties（特性）for fire-walking, explains Hall. First, wood is an insulator（绝缘体）--it doesn’t __45 heat very well. “It 46 _ time for heat to travel 47 the wood to your feet.” Hall says. If the performer walked across red-hot metal 48 , that would truly be 49 , because metal conducts, or transmits, heat very well. The metal would 50 burn a performer’s feet.

Second, wood has a low specific heat-- it doesn’t take much heat to 51 its temperature. Heat is a form of 52 . Temperature is a 53 of heat, in units of degrees. So 54 the coals are hot, the value（数值）of heat energy they contain is low. Thus, a well-trained performer can 55 such an amazing result.

Still, you don’t want to walk on burning coals, do you?

1.A. daring B. dare C. rough D. fearful

2.A. at B. over C. on D. above

3.A. with B. within C. without D. over

4.A. out B. on C. off D. in

5.A. imagine B. imagined C. imagining D. to imagine

6.A. fire B. burn C. light D. flame

7.A. prevent B. keep C. ignore D. avoid

8.A. off B. from C. of D. in

9.A. ideal B. classic C. favorite D. standard

10.A. transmit B. communicate C. bring D. send

11.A. gathers B. takes C. gains D. stands

12.A. through B. into C. over D. pass

13.A. unhappy B. unharmed C. unhealthy D. unprepared

14.A. charming B. magical C. tricky D. fashionable

15.A. instantly B. constantly C. frequently D. lately

16.A. produce B. raise C. construct D. create

17.A. power B. source C. energy D. strength

18.A. measure B. rank C. estimate D. rate

19.A. what if B. however C. as if D. even though

20.A. achieve B. arrive C. draw D. take

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The pine tree is a special kind of tree. _______1_______ This is because many people put pine trees in their homes at Christmas time. They decorate the tree with colored lights, and put Christmas presents under the tree.

Pine trees are different from other trees because most other trees lose their leaves in winter. _____2_____ So pine trees are also called evergreens.

_____3_____ They have hard, thin leaves called needles. Pine trees also have pine cones. Pine cones look like hard berries. If you walk in a forest, you will see many pine cones on the ground. ______4_____ When the seeds fall to the ground, a new tree starts to grow.

______5_____ The wood is used to make furniture and boats. Many kinds of birds build their nests in pine trees. The seeds of pine trees are food for small animals such as squirrels and mice and for bigger animals such as rabbits and black bears. The needles are good food for large animals such as deer and moose when they cannot find anything to eat in the winter.

If you walk in a forest of pine trees, the air has a wonderful smell. In winter, the white snow on the dark green trees looks very beautiful.

A. Inside the pine cones are seeds

B. Pine trees are valuable for many reasons

C. Pine trees are very beautiful all year round

D. Some people call the pine tree a Charismas tree.

E. Pine trees do not have soft leaves like the maple tree.

F. Pine trees stay green all year long, even in winter.

G. The seeds inside the pine cones are the favorite food for some animals.

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Let’s say you have a piece of wood, a nail, and hammer. Pretend the wood is a person, the nail is a mean rumor (谣言) about that person. If you hammer in the nail, you’re obviously hurting him or her. If you then pull out the nail, there’s still a hole in the wood, and the damage has been done.

There are many reasons why that nail of a rumor can be so harmful. Rumors are, quite simply, a form of bullying (欺悔). When a person or a group makes up a rumor about someone or decides to spread gossip, it’s usually to hurt someone, break up a friendship, or make someone less popular. It’s the same thing as teasing, only it’s done behind someone’s back instead of to his or her face.

When you spread a rumor about someone, you’re sending a signal that the person is outside of the group, and somehow less worthy of friendship than others. You’re making fun of that person or pointing out negative things about him or her. This can let others think that it’s okay to make the person feel bad, and make him or her an outsider.

We need to be able to trust our friends, and gossip and rumors can break this trust. If you tell a personal secret to a friend, and he turns around and tells it to someone else, you might feel like you will get burned if you ever get close to him again.

Letting a rumor influence your behavior is like letting someone else make a big decision for you. Let’s say you hear that the teacher plans to call a Snow Day tomorrow because a blizzard (暴风雪) is coming. Expecting a day off, you don’t do your homework. The next morning, the blizzard turns out to be nothing more than a drizzle（毛毛雨）, and school isn’t off after all. You get zeroes on your work.

1.The purpose of the first paragraph is to .

A. help readers know what a rumor is B. attract readers to read the following paragraphs

C. emphasize the damaging effects of rumors D. explain how a rumor spreads

2.To tell a rumor and a tease apart, you depend on .

A. whether it is done behind someone B. whether it is painful or not

C. whether it is a kind if bullying D. whether it is spread fast

3. If a rumor is spread about someone, others may .

A. point out his or her advantages B. keep away from him or her

C. not feel he or she is an outsider D. be hurt if getting close to him or her again

4.From the last paragraph, we can infer that .

A. it is hard to keep rumors a secret B. rumors can destroy your interest in learning

C. believing rumors can lead to bad choices D. rumors can control your whole life

5. The purpose of this passage is to .

A. advise on how to deal with rumors B. teach us how to judge a rumor

C. find out why rumors spread fast D. explain why rumors hurt

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One day, Mr. Arnold was teaching a lesson, and things were going as normally as ever. He was explaining the story of mankind to his pupils. He told them that, in the beginning, men were nomads; they never stayed in the same place for very long. Instead, they would travel about, here and there, in search of food, wherever it was to be found. And when the food ran out, they would move off somewhere else.

He taught them about the invention of farming and keeping animals. This was an important discovery, because by learning to cultivate(耕作)the land, and care for animals, mankind would always have food steadily available. It also meant that people could remain living in one place, and this made it easier to set about tasks that would take a long while to complete, like building towns, cities, and all that were in them. All the children were listening attracted by this story, until Lucy jumped up:

“And if that was so important and improved everything so much, why are we nomads all over again, Mr. Arnold?”

Mr. Arnold didn’t know what to say. Lucy was a very intelligent girl. He knew that she lived with her parents in a house, so she must know that her family were not nomads; so what did she mean?

“We have all become nomads again,” continued Lucy, “The other day, outside the city, they were cutting the forest down. A while ago a fisherman told me how they fish. It’s the same with everyone: when there’s no more forest left the foresters go elsewhere, and when the fish run out the fishermen move on. That’s what the nomads did, isn’t it ?

The teacher nodded, thoughtfully. Really, Lucy was right Mankind had turned into nomads. Instead of looking after the land in a way that we could be sure it would keep supplying our needs, we kept developing it until the land was bare. And then off we would go to the next place! The class spent the rest of the afternoon talking about what they could do to show how to be more civilized.

The next day everyone attended class wearing a green T-shirt, with a message that said “I am not a nomad!”

And , from then on, they set about showing that indeed they were not. Every time they knew they needed something, they made sure that they would get it using care and control. If they needed wood or paper, they would make sure that they got the recycled kind. They ordered their fish from fish farms, making sure that the fish they received were not too young and too small. They only used animals that were well cared for, and brought up on farms.

And so, from their little town, those children managed to give up being nomads again, just as prehistoric men had done, so many thousands of years ago.

1.From Paragraph 2, we can know that______ .

A．people got tired of living in the same place

B．people gradually got used to living in cities

C．people tended to settle down after learning farming

D．people spent a long time in learning to keep animals

2.In the teacher’s opinion, Lucy’s argument was______

A．shocking B．ridiculous C．puzzling D．reasonable

3.Which of the following agrees with the message “I am not a nomad” (Paragraph 7)?

A．People eat young fish for its delicious taste.

B．Foresters leave the place where wood is not available.

C．Fishermen move elsewhere when there is no fish left.

D．People use recycled materials as much as possible.