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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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Sometimes people come into your life You know that they will help you  out who you

are or who you want to become·You never know   these people may bepossibly your roommateneighboror even a complete strangerBut when you  eyes with themyou know at that very moment they will   your life in some way

??? And sometimes things happen to you that may seem  at firstbut in reflection you find that without them you would have never  your potential ability

??? Everything happens for a   Nothing happens by chance or  good luckIllnessinjurylove all occur to test the  of your soulWithout these small testslife would be like? a  road to nowhere The people affecting your lifeand the  and failure you experiencehelp to create who you are and who you become.?   the bad experiences can be learned fromfor they are  the most important ones·If someone loves youlove them back unconditionallybecause they are  you to loveIf someone hurts you  themfor they have helped you learn about  and the

importance of being cautious

??? Make every day   Appreciate every momentfor you may never be able to 53 it again·Tell yourself you are a great individual and  yourself. Create your own life and then go out and live it with absolutely no  Most importantlyif you LOVE someonetell him or herfor you never know what tomorrow

may have in store

1.A. figure  ???? B. take  ??? C. give  ??? D. speak

2.A. where ????? Bhow  ?? Cwho  ?? D. what

3.Afill  ?????? Block  ? Ccover  ? D. close

4.Avalue  ??? Baffect  ?? Clove  ?? Dwaste

5.A. exciting  ?? B. inspiring   C. inviting  ? D. challenging

6.A. realized  ??? B.lacked  ?? Ccontrolled D. tested

7.A. profit  ???? B. fact  ????? C. reason  ? D. result

8.A. in need of   B. on behalf of  C. on account of D. by means of

9.A. degrees  ?? B. limits  ???? C. influence  D. condition

10.A. smooth  ?? B. snowy  ??? C. busy  ?? D. heavy

11.A. sense  ??? B. incident  ?? C. success   D. feeling

12.A. So ??????? B. Yet ?????? C. Thus  ?? DEven

13.A. probably ?? B. exactly  ? C. certainly  D. rarely

14.A. persuading  B. allowing??? C. teaching  D. forcing

15.A. warn ????? B. forgive  ?? C. scold  ?? D. charge

16.A. agreement? B. society  ??? C. right  ?? D. trust

17.A. count  ? B. mean  ???? C. go ??????? D. change

18.A. save  ??? B. experience  C. share  D. miss

19.A. hold on   B. care for  ?? C. think of  D. believe in

20.A. efforts  ? B. beliefs  ??? C. regrets  D. directions

 

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Because earthquakes happen without warning, it’s important to take measures now to prepare. Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace, and car.

  1. Water

  A person needs at least 1/2 gallon(加仑) of water daily just for drinking. Store at least 1 gallon of water per person per day and be prepared for a 72-hour period. It is suggested that you buy bottled water. Keep bottled water in its original container and do not open it until you need to use it. Also, do check the “use by” date.

  2. Food

  It’s always a practical idea to keep a supply of non-perishable(不易腐烂的) food on hand. Have an enough supply of canned food, powdered milk, dried fruits, non-salted nuts and canned juices for at least 72 hours.

  3. Torch(手电筒) and spare batteries (电池)

  Keep a torch beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure that no gas leaks(泄露).Prepare a battery-powered radio and spare batteries. Most telephones will be out of order, so radios will be your best source of information.

  4. Clothes

  If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.

1.Why should people prepare themselves for an earthquake?

   A. Because earthquakes can be known before they happen.

   B. Because earthquakes take place without warning.

   C. Because earthquakes usually take place in the neighborhood.

   D. Because it’s people’s daily work to prepare the earthquakes.

2.You should prepare all of the following except ______.

   A. powdered milk    B. fresh vegetables   C. dried fruits   D. canned juices

3.According to the article we know that ______.

   A. we need to prepare some supplies only at home

   B. a telephone is the most important prepared thing

   C. after earthquakes you’d better use torch first but not matches

   D. clothes are used to protect your head

4.If you live in a cold place, you should prepare _______.

    A. some warm clothes and bedding supplies       B. some hot water

C. some batteries                               D. some torches

 

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                            C

Have you ever been afraid to talk back when you were treated unfairly? Have you ever bought something just because the salesman talked you into it?  Many people are afraid to support themselves. Dr. Robert Albert, author of Stand Up, Speak Out, and Talk Back,thinks it’s because their self-respect is low. “There s always a ‘superior’ (长辈) around ˉa parent, a teacher, a boss—— who knows better.” But Albert and other scientists are doing something to help people help themselves. They offer “assertiveness(维护) training” courses——A.T. for short. In the A. T. Course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to be aggressive (进攻的) without hurting other people. In one way, learning to speak out is to get rid of fear. A group taking an A. T. Course will help the timid (懦弱的) person to lose his fear. But A. T. uses an even stronger motive (动机)——the need to share. The timid person speaks out in the group because he wants to tell how he feels. Whether or not you speak up for yourself depends on your self-respect. If someone you face is more “important” than you, you may feel less of a person. You start to doubt your answers to problems. You can get to feel good about yourself. And once you do you can learn to speak out.

1. The problem the writer talks about is that…    

A. some people buy things they don t want

B. some people are afraid to speak out for their rights

C. there are too many superiors  

D. some people don t think enough of themselves  

2.The cause of the problem talked about in this passage is that .

  A. some people have a low self-respect          

B. there is always someone around who “knows better”

C. salesmen talk people into buying things they don’t want

D. people don t share enough              

3. The A.T. Course often                     

A. make people distrust their own answers        

B. make things more favorable for “superiors”     

C. help people know as much as their “superiors”         

D. help people become more important          

4.One thing the A . T. Course don t do is to .        

A. share the need of people                      

B. show they have a right to be themselves         

C. help people overcome fear                      

D. help people to help themselves even if others suffer            

5.A good title for this passage could be .           

A. The Need to Share                        

B. Talk Back When Necessary                    

C. One Way to Build Self-Respect              

D. One Way to Train Speaking Ability

 

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Sea turtles are found in all warm waters throughout the world. Sea turtles are the___36____ of the turtles. The largest kind of sea turtle can grow as long as eight feet and ___37___ 1,500 pounds. Even the smallest kind, Kemp’s-Ridley, can ___38___ to 28 inches long and weigh almost 100 pounds. Many other turtles are small enough to___39___ in your hand. It is difficult to find population numbers for sea turtles because they do not___40____ shore once they hatch and reach the ocean, which makes it hard to ___41___ them. Sea turtles___42___ in the water because they are safer there. They cannot___43___ their heads and feet into their shells like other turtles can. Sea turtles cannot hide inside their shells __44___ other animals that want to eat them. They need to move quickly to stay safe.

When the weather ___45___ warm, sea turtles leave the ocean to___46___ their eggs on the beach. This is the only time they will ever leave the water. Most___47____ turtles spend part of the time in water___48___ part of the time on land. It is easy to understand___49____ sea turtles stay in the water. Their___50___ to swim is greater than their ability to walk. Their heavy bodies and unusual feet make it hard for them to ___51___ on land. They are better___52___ for life in the water. They are well suited for life in the sea because of__53___ their bodies are made.

The way their feet are made helps sea turtles swim very quickly. Their feet look like long __54___. When they swim, they flap their feet like a bird flaps its wings. This ___55___ way of swimming benefits sea turtles. It allows them to escape from their enemies.

36.  A.  dwarfs        B.  giants         C.    mammals       D.  ancestors

37.  A.  measure       B.  weigh         C.    sell           D.  sound

38.  A.  grow up       B.  bring up        C.    take up         D.  go up

39.  A.  suit           B.  fit           C.    match          D.  seize

40.  A.  go to          B.  turn to         C.    back to         D.  return to

41.  A.  keep up with    B.  keep track of    C.    keep in touch with D.  keep to

42.  A.  swim         B.  hide           C.    sleep           D.  stay

43.  A.  push         B.  draw         C.    drag           D.  pull

44.  A.  away         B.  from          C.    for            D.  to

45.  A.  becomes       B.  turns          C.    changes         D.  leads

46.  A.  lay           B.  lie            C.    laid            D.  lain

47.  A.  the other       B.  another       C.    other           D.  others’

48.  A.  but           B.  and           C.    or             D.  so

49.  A.  when         B.  where        C.    why           D.  as

50.  A.  technique      B.  talent          C.    ability          D.  opportunity

51.  A.  walk          B.  travel          C.    wander         D.  play

52.  A.  adopted        B.  adapted        C.    adequate        D.  admitted

53.  A.  the way        B.  the manner      C.    the method      D.  the shape

54.  A.  paddles       B.  sticks         C.    wings          D.  tails

55.  A.  abnormal       B.  unusual        C.    ordinary         D.  unbelievable

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