摘要: Heat does not travel by convection in solid, because the solid does not move, . a. so does a liquid b. so a liquid does c. as does a liquid d. so is a liquid

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阅读理解。
Read and answer the following questions.
      The United States is one of the biggest countries in the world. It has all sorts of geography, from deserts
to beaches, mountains to flatlands. These conditions help create all sorts of weather: mild, moderate and
extreme. Sometimes all in one day! In the summer, some areas get very hot and the air is very wet. But others
have dry air, so the heat does not feel so bad.
     In the winter, parts of the country get cold and snowy while others stay warm and sunny. This is the
difference between, for example, New York City on the East Coast and Los Angeles on the West Coast. Yet
even the East Coast has its warm places in winter, like Florida.
     The oceans affect weather along the coasts. The Pacific coast has smaller temperature changes and calmer
conditions than along the Atlantic.
     Alaska and Hawaii are the only states not connected to the forty-eight mainland states. Alaska is in the
Arctic area, so it gets very cold. Hawaii, out in the Pacific, is warm all year long.
     Weather in the central and northeastern parts of the country is affected by cold air from Canada and warm
air from the Caribbean. Conditions can change quickly.
     Hurricanes are ocean storms that strike mainly in the Southeast. The hurricane season is, officially, June
through November. Tornadoes are a risk across the country. These are locally severe windstorms. They
generally happen in spring and summer.
      In fact, March eighteenth happens to be the eightieth anniversary of the most deadly tornado in United
States history. The nineteen twenty-five"Tri-State Tornado" hit parts of Missouri, Illinois and Indiana. The
National Weather Service says the horrible twister killed nearly seven hundred people.

1. Why does America have all sorts of weather? (回答词数不超过8个)
____________________________________________________________________________
2. What is the difference in weather between Alaska and Hawaii?(回答词数不超过7个)
_____________________________________________________________________________
3. What makes the weather conditions change quickly in the central and northeastern parts of the US?
(回答词数不超过10个)
______________________________________________________________________________

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    It was a very cold evening.The old man’s beard was almost frozen.He was waiting for a ride across the river.The wait seemed endless.The old man sat on the ground waiting.

Finally,he saw several horsemen coming.He watched them.He 1et the first one.pass by without even asking.Another passed by,and then another.Finally,tile 1ast rider came near the old man.The old man caught the rider’s eye and said,“Sir,would you mind giving me a ride

To the other side?”

    Stopping his horse,the rider replied,“Of course.”But the old man’s body was half-frozen.He could not get off the ground.The horseman helped the old man onto his horse.He took the o1d man not just across the river,but to the old man′s home.

    As they neared the old man’s house,the horseman asked,“Sir,you let several other riders pass by without even asking.Then I came up and you asked me for a ride at once.Why? What if 1 had said‘no’and 1eft you there?”

    The old man looked at the rider straight in the eyes,and said?“1 looked into the eyes of the other riders.I quickly saw that they did n’t care.It would be useless even to ask them for a ride.But when I looked into your eyes,I saw kindness.I knew that you would help me.”

The words touched the rider deeply.“Thank you for what you’ve said,”he told the man.“I hope 1 will never be too busy to help others.”  

With that,Thomas Jefferson,the third president of the US,turned his horse around and made his way back to the White House.

1.What does the underlined sentence mean?

    A.Though 1 will be busy,I’ll sti1l help others.

    B.1’ll not be busy forever,so I can help others.

    C.1 will always be ready to help others.

    D.To help others,1 will not be busy.

2.The writer used the first paragraph;in order to         

    A.describe the cold weather                    B.describe the old man’s difficulty

C.stress the 1ast horsemen’s kindness        

D.describe the length of the old man’s beard

3.What did the old man ask the last driver to do?

    A.To take him home.                       B.To take him across the river.

    C.To take him to the capital.             D.To take him to the White House.

4.Who is the last horseman?

    A.The third president of America.         B.The passage does n’t tell us.

    C.A man sent by God.                  D.A unknown fighter of the U.S.army.

 

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