阅读理解:

  The Earth has a force that pulls things toward itself. We call this force gravity(引力). This is something we love with all the time, and hardly ever think about it. But it is a most important factor(因素)in rocket(火箭)operation and must be overcome if we are to get anywhere in space, or off the ground at all.

  Take the throwing of a ball as an example. The harder the ball is thrown, the faster and higher it will go. What is the secret? Its speed. If we could throw the ball hard enough it would go up and up and up forever and never come down. The speed at which it would have to be thrown to do this is known as escape speed. Of course, we cannot throw a ball hard enough because the speed required to escape completely from the Earth’s gravity is seven miles per second, or over twenty-five thousand miles per hour.

  Once escape speed has been reached by a spaceship, no further power is needed. A rocket aimed at the Moon, for instance, will “:coast”(滑行)the rest of the way because the Earth’s gravity cannot then pull it back, and there is no air resistance in space to slow it down. This “coasting” is known as “free fall”. That does not mean the rocket is falling down towards the Earth but that it is travelling freely in space without the help of power, like a bicycle coasting downhill.

  Free fall is an important feature of space travel: it would be impossible to carry enough oil to supply powered flight all the time.

1.What is the most important factor for a rocket to escape from the Earth?  

 [  ]

A.To travel as fast as it can.

B.To overcome the Earth’s gravity.

C.To get away from the air resistance.

D.To have strong power in its operation.

2.How fast will a rocket escape completely from the Earth’s gravity?

 [  ]

A.Seventy miles per second.

B.Seven thousand miles per hour.

C.Twenty-five thousand miles per second.

D.Twenty-five thousand miles per hour.

3.As there is always the Earth’s gravitational pull, people ______.

[  ]

A.accept it without questioning it

B.never feel interested in its presence

C.hardly think about how to use it

D.often try to escape from it

4.When a bicycle “coasts” downhill, it ______.

   [  ]

A.runs along the hillside

B.does not need any further power

C.runs freely in all directions

D.does not meet with air resistance

5.It’s unnecessary to supply power for the flight in space all the time, because ______.

   [  ]

A.few spaceships complete their flight operations

B.the Earth’s gravity cannot be overcome

C.no further power is needed after the escape speed is reached

D.“free fall” takes the place of the Earth’s gravity

阅读理解:

  When a tornado(龙卷风) destroys a house, it doesn’t blow it down the way a hurricane(十二级台风) does. It makes the house explode. Why does the house explode?

  The air that surrounds a house presses against it all the time. It usually has a force of about fifteen pounds per square inch. The air inside the house presses out against the walls just as hard. When a tornado passes over a house, it suddenly sucks away the air outside the house. The air inside the house still pushes out against the walls, but now there is nothing pushing back. So the walls are pushed out in an explosion.

  Pieces of the house are sucked up into the tornado and carried away. There is little left where the house once stood.

1.A tornado makes a house ______.

 [  ]

A.explode    B.blow away

C.fall down   D.catch fire

2.The walls of a house stay up when ______.   

[  ]

A.air pushes from the outside

B.air pushes from the inside

C.there is no pressure on them

D.air pushes from both the outside and the inside

3.In paragraph 2, the sentence “The air inside the house presses out against the walls just as hard.” Means ______.   

[  ]

A.the air inside the house presses out more greatly than the air outside

B.the air pressure outside the house is usually the same as the pressure inside

C.the air pressure inside the house is usually less than the pressure outside

D.the air pressure inside the house is just as difficult as the pressure outside

4.A house’s walls are pushed out when ______.   

[  ]

A.the air outside is taken away

B.the air inside is taken away

C.too much air is pushing outside

D.they are in very poor conditions

5.A house destroyed by a tornado would look ______.  

 [  ]

A.as if a hurricane had hit it.

B.as if there had been a fire

C.like a pile of wood

D.as if a bomb had exploded in it

阅读理解:

  The early settlers who came from the eastern United States were used to having lots of trees around. They found it hard to live in a treeless place like Nebraska. And they needed trees for building and for fuel. So they started many tree-planting programs that went on for years and years. Finally, in 1872 a newspaperman named J. Sterling Morton had an idea. Why not have a special day for planting trees? So Arbor Day was born, and on April 10, 1872, the first Arbor Day was celebrated. The state government announced that it would give prizes to individuals and groups who planted most trees. On that first day, more than one million trees were planted in Nebraska.

1.What is the passage mainly about?  

 [  ]

A.The Nebraskan terrain(地形).     B.Early settlers.

C.Arbor Day.              D.Some uses for trees

2.The first sentence “The early settlers who came from the eastern United States were used to having lots of trees around.” Tells us that ______.

 [  ]

A.there were many settlers in the eastern U.S

B.in the eastern U.S. there were never a lot of trees

C.the people living in the eastern U.S. built their houses with trees

D.the people in the eastern U.S. used to live in a treeless place

3.According to the passage, trees were at first needed by Nebraskan settlers for ______.

   [  ]

A.shade           B.prizes

C.the creation of parks   D.building houses

4.Why does the author mention J. Sterling Morton?  

 [  ]

A.To give an example of an early settler.

B.To praise the origin of an idea.

C.To support the author’s own point of view.

D.To stress the importance of newspapermen.

5.According to the passage, which of the following happened on April 10,1872? 

  [  ]

A.A great many new trees were planted.

B.J. Sterling Morton was born.

C.The Nebraskan state government provided trees.

D.Millions of people were rewarded with prizes.

阅读理解

  Even at the age of 89 Rene Huyghe still loves the woman with whom he spent World WarⅡ driving her from her house to safety, hiding her in his office, even sharing a bedroom with her. She was “Mona Lisa”, masterpiece of Leonardo da Vinci and a centerpiece of the Louvre. He was the chief curator(管理员)of paintings there.

  Foreseeing the Nazi drive across Europe, Huyghe began planning in 1938 to hide his charges. When Germans entered Poland a year later, Huyghe’s trucks took Louvre paintings to hiding places far from Paris. “Mona Lisa” rode in a car, “always going with a curator, sometimes with me,” he recalls.

  She was carried from place to place out of fear. Bombs could strike her hiding place; fire could burn her; she could end up in a German collection.

  Once, as Nazi troops passed her last hiding place, Chateau de Montal, a Resistance fighter inside fired at them. Fearing retaliation(报复), Huyghe shouted to the man, “You are mad! Stop it at once!” The troops moved on and the following day razed(洗劫) entire village nearby.

  “At war’s end every single work was back in the Louvre,” Huyghe says. “Mona Lisa” herself returned in a curator’s private car.

1.According to the passage, the one Rene Huyghe still loves is ______.

[  ]

  A.a painting      B.a German girl

  C.a Resistance fighter D.a lady

2.When did the Nazi drive across Poland?

[  ]

   A.Not mentioned.  B.In 1938.

   C.After 1938  D.Before 1938.

3.In paragraph 2, “Huyghe began planning in 1938 to hide his charges.” Means ______.

[  ]

A.Huyghe wanted to hide his money in 1938

B.Huyghe had planned to complete his tasks

C.Huyghe made a plan to hide the paintings of the Louvre in 1938

D.Huyghe hoped to take good care of his photos in 1938.

4.Which of the following is NOT TRUE according to the passage?

[  ]

A.A resistance fighter stayed together with the old man.

B.A village in which they stayed was razed by the Germans.

C.All the works were returned to the museum after the war.

D.The curator is 89 years old now.

5.Which of the following will be the best title for the passage?

[  ]

A.Nazi’s Rise and Fall

B.Rene Huyghe’s Ever Lasting Feeling with “Mona Lisa”

C.The World War and the Louvre Paintings

D.A Louvre Curator’s Wartime Companion

语篇理解

  Dorking police are still looking for the driver of a Ford truck which didn’t stop after causing an accident on the No. 24 Road between Beare Green and Capel. The accident involved(涉及) three other cars, a Cortina, an Austin Princess and an MGB.

  The driver of the Cortina, 18-year-old Nicola Stacey from Dorking, was taken to hospital for an operation to save her eyesight.

  Dr. James, driver of the Austin Princess, was on his way to   He said, “I was keeping my distance behind the   when I saw a truck coming very fast in the opposite direction on the wrong side of the road.”

  Miss Heather Inness, driver of the  , said, “When I saw the truck overtake(超越) me and the other car coming, I drove to the left to get out of the way. So we were not hurt.” Mis Inness was on her way to Heathrow Airport with Mr. Peter Walford. She added, “the worst part of it was that I missed my plane.”

(1)Dorking police are still looking for the driver of ______.

[  ]

A.the Ford truck      B.the Cortina

C.the Austin Princess    D.the MGB

(2)How many vehicles(机动车) did the accident involve?

[  ]

A.One.   B.Two.   C.Three.   D.Four

(3)From the news we know ______ was badly hurt in the accident.

[  ]

A.Mr. Walford    B.Miss Stacey

C.Mr. James     D.Miss Inness

(4)According to Dr. James and Miss Inness, ______ hit each other.

[  ]

A.the Cortina and the MGB

B.the Cortina and the Ford truck

C.the Austin Princess and the MGB

D.the Ford truck and the Austin Princess

(5)Where was the Ford truck moving when the accident happened?

[  ]

A.To London.      B.To Capel.

C.To Beare Green.   D.We can't learn from the article.

阅读理解

  In the United States,30 percent of the adult population has a “weight problem”.To many people,the cause is obvious:we eat too much.But scientific evidence(证据) does little to support this idea.Going back to the America of 1910,we find that people were thinner than today,yet they ate more food.In those days people worked harder physically,walked more,used machines much less,and didn’t watch television.

  Several modern studies,moreover,have shown that fatter people do not eat more on average(平均) than thinner people.In fact some investigation(调查),such as a 1979 study of 3,545 London office workers,report that,on balance(总的说来),fat people eat less than slimmer people.

  Studies show that slim people are more active than fat people.A study by a research group of Stanford University school of Medicine found the following interesting facts:

  The more the men ran,the greater loss of body fat.

  The more they ran,the greater increase in food intake(摄取).

  Thus,those who ran the most ate the most,yet lost the greatest amount of body fat.

1.What kind of physical problem do many adult Americans have?

[    ]

A.They are too thin   B.They work too hard

C.They are too fat    D.They lose too much body fat

2.Based upon the information given in the article,suppose there are 500 adult Americans,about how many of them will have a weight problem?

[    ]

A.30 B.50

C.100 D.150

3.Which of the following words can take the place of the word“slim”in this passage?

[    ]

A.poor    B.thin

C.healthy   D.rich

4.Compared with(与…相比)the adult American population to today,the Americans of 1910 ______.

[    ]

A.ate more food and had more physical activities

B.ate less food but had more activities

C.ate less and had less physical exercises

D.had more weight problem

5.What have modern medical and scientific researches reported to us?

[    ]

A.Fat people eat less food and are less active

B.Fat people eat more food than slim people and are more active

C.Fat people eat more food than slim people but are less active

D.Thin people run less,but have greater increase in food

阅读理解

  In the 19th century there was an exhibition on the fine art in Paris .Before it was open to the public several well-known artists were invited to visit and show their opinions.There was a curtain covering each painting.When they came near the first painting,an assistant drew the curtain away.A beautiful rose appeared before them.The painting was really true to life.At the moment a butterfly(蝴蝶)flew into the hall and stopped on one of the roses in the picture.All of them cheered.They all said that it was excellent,because it confused the butterfly.

  Then they came to the second painting.The assassinate was going to draw the curtain as he did before.As soon as he touched the curtain,he cried,“Wonderful!It’s the best painting I have ever seen.”

  All the artists asked why the thought so.After he told them the reason,everybody agreed with him.

1.This happened in the ______.

[    ]

A.1900’s in England    B.1800’s in America

C.1900’s in Australia    D.1800’s in France

2.There ______ in the hall.

[    ]

A.was only one curtain      B.were two curtains

C.were a lot of curtains    D.were a great deal curtains

3.It confused the butterfly.Here“confused”means to make someone ______.

[    ]

A.happy      B.frightened

C.believe    D.angry

4.What do you think the second painting was about?

[    ]

A.a butterfly      B.an exhibition

C.a flower       D.a curtain

5.The second was even better because it ______.

[    ]

A.was very true to life   B.was another butterfly

C.confused the assistant    D.was beautiful

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