摘要: fur A. church B. hurry C. regular D. surprise

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  From the coldest arctic ice to the hottest deserts you will find mammals living and thriving(兴旺).There seems to be no climate that they can't adapt to, however changeable it may be.Why can mammals adapt to so many different habitats? There is a good reason for this-mammals have the ability to keep their body at a constant temperature whatever the weather.They are “warm-blooded”.

  Mammals achieve this by chemically “burning” their food as fuel inside their bodies.This is kept under tight control by a region of the brain that acts like a thermostat(恒温器), and this makes sure that the mammal's body temperature stays about the same.

  A constant body temperature is a great advantage for mammals because all the chemical processes that go on inside a living body are likely to happen more slowly at low temperatures and faster at higher temperatures.Mammals can regulate their temperature at the best condition for all these processes, allowing them to be active at very cold or very hot periods and to keep up tiring activity for a long time.Animals such as lizards(蜥蜴)rely on moving in and out of the warm sunlight to regulate their body temperature.They slow down when they can't warm up and may die if they can't get away from heat.They also tend to overheat quickly when they are active as their muscles produce warmth.

  Using food energy to keep body temperature constant is expensive, and since mammals need to be efficient at keeping the warmth they create inside themselves, they often have fur and a cover of fat under their skin to prevent heat from escaping.To help lose heat when they are too hot, they have sweat glands(汗腺)that take the heat away from the skin through evaporating(蒸发)water.This means, though, that they need to drink more than other animals.

(1)

Mammals can adapt to so many habitats because ________

[  ]

A.

the climate is unchangeable

B.

they can regulate their body temperature

C.

they are “warm-blooded”

D.

their muscles produce warmth

(2)

When mammals keep their body at a constant temperature, ________

[  ]

A.

the chemical processes happen more slowly in their bodies

B.

the chemical processes happen faster in their bodies

C.

they will use less fuel inside their bodies

D.

they can live an active life

(3)

We can infer from the last paragraph that mammals ________

[  ]

A.

need to drink more than other animals

B.

have different ways of keeping their body temperature

C.

often have fur and fat to prevent heat from escaping

D.

have sweat glands that take the heat away from the skin

(4)

The writer answers the question raised in the first paragraph with ________

[  ]

A.

stories and explanation

B.

examples and conclusion

C.

evidence and argument

D.

explanation and comparison

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

  Have you ever seen an animal being mistreated(虐待)? Seeing a pet or wild animal get hurt might make you sad, angry, or afraid.1.________ In fact, the good news is that everyone-including you-can be a helping hand for animals.

  Keep your eyes and ears open.2.________ Watch for changes in the way they look or act.Look out for animals who:

  ★have cuts or other bruises(伤痕)

  ★avoid or attack people when they come close

  ★are too thin

  ★are missing fur

  ★are almost always left outside

  These signs don't necessarily mean a pet has been hurt on purpose, but they shouldn't be ignored.If you see any of these signs, set them down.3.________ What did you see or hear? Where? When? Were other people around?

  4.________ Never move an injured animal! Ask a parent, teacher, or other adult you trust for help.Find out whether the injured animal in your town can be saved by animal shelters or police.Keep their phone numbers at hand.If the person mistreating animals is a friend or family member, tell an adult you trust.

  Speak up.Let other kids know what to do if they see an animal being hurt.Using the information above, make posters to hang or flyers(传单)to hand out at school.Include the phone numbers of the police department or animal shelters who can save the injured animals.

  5.________ They need us to speak up for them.

A.Report it.

B.Ask others for help.

C.Animals are friends of human beings.

D.Get to know pets in your neighborhood.

E.You might think there's nothing you can do.

F.Remember, animals can't speak for themselves.

G.Or if you see someone hurting an animal, write down the details.

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  On a snowy and windy afternoon, An-drea, a ten-year-old girl, went out for play. She was walking along the sands when she was blown into a ditch (沟) by the seashore. She was frightened and tried her best to climb out. But the ditch was too deep and she was too weak to get out of it. So Andrea cried at the top of her voice for help. But what she could hear over the snow ditch was nothing but the terrible noise of the wind. Nobody came to her and nobody knew where she was. She struggled (挣扎) again and again. Her face was whipped by the strong wind, snow and sand, and she was almost fro-zen. Her hands began to feel stiff (僵硬). She also felt her strength running out of her. She started to cry hopelessly. Just at the moment Andrea saw a black dog appearing, through the heavy snow. It was Villa, her true friend. She was glad to see the sign of life. And the dog set out to work as soon as she got to An-drea. She cleaned away the snow around her with her paws and hind leg's, then reached out her big strong fur head to Andrea. The little girl closed her arms round Villa's neck. The dog backed away slowly, pulling her out of the ditch inch by inch.

  Successfully, Andrea got out of the ditch at last. Then she struggled to her feet. With great difficulty, led by her true friend Villa,she was saved.

  Villa, the black dog, was given a gold medal and honoured as Brave Hero Dog of America.

(1) The purpose (目的) of this passage is to tell us________.

[  ]

A.the excellent relation between a girl and her dog

B.how a brave girl survived a serious ac-cident

C.what people did to a dog that saved a girl

D.how a brave dog managed to save her little master

(2) Andrea ________when stuck in the snow ditch.

[  ]

A.tried every possible means to save her-self

B.did nothing but wait for help to come

C.believed that her dog would come to help her

D.was sure that people were to give her a hand

(3) Describe how the dog pulled the girl out of the ditch.

[  ]

A.She pushed the girl out with her head.

B.She caught the girl by the arm and pulled hard.

C.She let the girl hold her head and stepped back.

D.She held the girl's clothes in her mouth and ran back.

(4) The underlined phrase “struggled to her feet” means “________”.

[  ]

A.tried to go away on foot

B.stood there with difficulty

C.managed to stand up

D.fought hard to protect her feet

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Here in Alaska, the wolf almost disappeared a few years ago, because hunters were killing hundreds of them for sport. 1 , laws were passed to 2 the wolves from and people who catch the animals for sport or for their 3 . So the wolf population has greatly 4 . Now there are so many wolves that they are 5 their own food 6 .

A wolf naturally lives on animals in the 7 family. People there also hunt deer for 8 .Many of the animals have been 9 by the very cold winters recently and by changes in the 10 life there. When the deer can’t find 11 food, they die.

If the wolves 12 to kill large numbers of deer, the deer will 13 some day. And the wolves, too. So we must 14 the cycle of life there. If we killed more wolves, we would 15 them from starving. We also save deer and some 16 animals.

In another northern state, wolves attack 17 and chickens for food. Farmers 18 the United States government to send a team of 19 to study the problem. They believe it is 20 to kill wolves in some areas and to protect them in places where there is a small population.

1.A.But     B.Although   C.However     D.So

2.A.forbid    B.keep     C.stop      D.protect

3.A.skin     B.covering   C.meat      D.fur

4.A.increased  B.reduced   C.improved    D.changed

5.A.killing   B.using    C.eating     D.destorying

6.A.supply    B.animals   C.stores     D.deer

7.A.hunter    B.deer     C.farmer     D.wolf

8.A.joy     B.skin     C.food      D.safety

9.A.killed    B.harmed    C.hunted     D.protected

10.A.everyday  B.cold     C.animal     D.plant

11.A.much    B.good     C.enough     D.fresh

12.A.stop    B.continue   C.remain     D.go on

13.A.disappear  B.die     C.reduce     D.starve

14.A.find    B.use     C.change     D.care for

15.A.save    B.keep     C.defend     D.make

16.A.big     B.small    C.forest     D.farm

17.A.deer    B.hares    C.dogs      D.cows

18.A.force    B.insist    C.want      D.order

19.A.scientists B.soldiers   C.hunters     D.doctors

20.A.right    B.necessary  C.useful     D.natural

 

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Nearly two decades has passed , I still remember my favourite professor, James Sehwartz. Whenever he smiles ,it’s as if you’d just been told the funniest joke on earth .Almost all his students are his friends, and almost all his students know his life story.

    When James was a teenager ,his father  36  him to a fur factory where he worked . This was during the Great Depression. The  37 was to get James a job.

    He entered the factory ,and immediately felt as if the  38  had closed in around him. The room was dark and hot , the windows covered with dust, and the  39  were packed tightly together ,running like trains. The fur hairs were flying ,  40  a thickened air ,and the workers,

41  the pieces of fur together , were bent over their needles  42 the boss marched up and down the rows ,searching for them to go faster .James could hardly  43 . He stood next to his father ,frozen with fear ,hoping the boss wouldn’t  44 at him , too.

    During lunch break ,his father took James to the boss and pushed him in front of him,  45 if there was any work for his son. But  46 there was barely enough 47 for the adult labours ,for no one would give it up once he takes a job.

    Thus , for James, it was a  48 . He hated the place. He made a  49 that he kept to the end of his like: he would never do any work that brought  50 to someone else ,and he would never allow himself to  51  money off the seat of others.

    “What will you do?” his mother , Eva , would ask him.

    “I don’t know,” he  52 say. He ruled out law ,because he didn’t like 53  , and he ruled out medicine , because he couldn’t take the  54 of blood.

    “What will you do?”

55 my best professor I ever had became he thought it was the job not to hurt anybody.

36.A.sent       B.took       C.carried       D.admitted

37.A.situation     B.condition     C.idea        D.way

38.A.lights     B.doors       C.chances      D.walls

39.A.goods       B.workers        C.machines     D.vehicles

40.A.creating     B.sending     C.taking        D.disturbing

41.A.collecting    B.pulling      C.drawing      D.sewing

42.A.as        B.after       C.if         D.though

43.A.breathe      B.see       C. walk            D.hear

44.A.attack       B.scold       C.rush       D.scream

45.A.doubting     B.questioning    C.asking       D.demanding

46.A.also       B.still            C.yet        D.even

47.A.time      B.work       C.office          D.occupation

48.A.comforting     B.regretting     C.blessing      D.forgiving

49.A.request      B.promise     C.plan        D.arrangement

50.A.harm     B.injury       C.damage       D.inconvenience

51.A.pay       B.save       C.make      D.let

52.A.should      B.would      C.could      D. might

53.A.police       B.lawyers     C.judges       D.government

54.A.sight      B.feel        C.sense       D.scenery

55.A.Generally    B.Luckily     C.Eventually     D.Basically

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