A visit to NASA Langley Research Center would be very exciting. You could meet NASA scientists and engineers working with wind tunnels.
Wind tunnels are basically tubes through which air—or a gas—is moved to make “wind” in the tube. This “wind” moves past objects such as airplanes or just parts from airplanes.
It s always a good idea to test a new aircraft design in a wind tunnel before you build the real aircraft. Models tested in wind tunnels will always go through design changes before engineers are satisfied with its design and test results.
Wind tunnels are constructed with some very wide sections as well as some sections much smaller in size. An “open return wind tunnel”is open at both ends of the tube. It is usually largest at one end of the tube where you may even see the fan blade(风扇片)that creates the wind. This tube gets smaller as you move away from the fan blade. The tube begins to straighten in the next part of the wind tunnel called the Test Section. This is where you place the model for testing. The tube widens again as you move away from the Test Section.
Another wind tunnel is the “closed return” design. This tunnel is completely contained inside a building. The tunnel moves in a “loop” inside the building. A fan is located in the tunnel on one side of the building and the test model is located in the tunnel's Test Section on the other side of the building.
NASCAR race teams even test their race cars in wind tunnels to test and improve a car's design. These teams work hard to reduce a car's drag. In less than 150 years, wind tunnels have allowed mankind to improve cars on the ground, aircraft in the atmosphere, and spacecrafts in space. We can only imagine what will happen with wind tunnels during the next hundred years.What could be the best title of the passage?
| A．What Are Wind Tunnels Made of? |
| B．What Is a Wind Tunnel and How It Works? |
| C．Where Can Wind Tunnels Be Found? |
| D．Why Are Wind Tunnels Used? |
Which of the following is the right shape of an “open return wind tunnel”？
In the “close return” wind tunnel, the fan is fixed________.
| A．in the Test Section on the other side of the building |
| B．next to the models in the building |
| C．at one end of the opening |
| D．on the other side of the Test Section |
By reducing a race car's drag, ________.
| A．the car will becomes lighter |
| B．the car will be easy to operate |
| C．the car will move faster |
| D．the car will look more beautiful |
When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible setbacks to win a highly competitive scholarship and gain entry to Harvard University. And her amazing story has inspired a movie,“Homeless to Harvard: The Liz Murray Story”, shown in late April.
Liz Murray, a 22-year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up in the shadow of two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was just 15 years old. The effect of that became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died, she decided to do something about it.
Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets.“What drove me to live on had something to do with understanding, by understanding that there was a whole other way of being. I had only experienced a small part of the society,”she wrote in her book Breaking Night.
She admitted that she used envy to drive herself on. She used the benefits that come easily to others, such as a safe living environment, to encourage herself that“next to nothing could hold me down”. She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS.“I love my parents so much. They are drug addicts. But I never forget that they love me all the time.”
Liz wants moviegoers (who often see films) to come away with the idea that changing your life is“as simple as making a decision”.
63．In which order did the following things happen to Liz?
A．Her mother died of AIDS. B．She worked at a petrol station.
C．She got admitted into Harvard. D．The movie about her life was put on.
e. She had trouble finding a place to sleep.
A．b, a, e, c, d B．a, b, c, e, d C．e, d, b, a, c D．b, e, a, d, c
64．The main idea of the passage is ________.
A．how Liz managed to enter Harvard University
B．what a hard time Liz had in her childhood
C．why Liz loved her parents so much
D．how Liz struggled to change her life
65．What actually made her go towards her goal?
A．Envy and competition. B．Willpower and determination.
C．Decisions and understanding. D．Love and respect for her parents.
66．When she wrote“What drove me to live on...I had only experienced a small part of the society”, she meant that ________.
A．she had little experience of social life
B．she could hardly understand the society
C．she would do something for her own life
D．she needed to travel more around the world
Until late in the 20th century most Americans spent time with people of different generations. Now middle-aged Americans may not keep in touch with old people until they are old themselves.
That's because we group people by age. We put our three-year-olds together in day-care centers, our 13-year-olds in schools and sport activities, and our 80-year-olds in senior citizen homes. Why?
We live far away from the old for many reasons. Young people sometimes avoid the old to get rid of fears of becoming old and dying. It is much harder to watch someone we love disappear before our eyes. Sometimes it’s got hard that we stay away from the people who need us the most.
Fortunately, some of us have found our way to the old. And we have discovered that they often save the young.
A reporter moved her family into a block filled with old people. At first her children were disappointed. But the reporter made banana bread for the neighbors and had her children send it and visit them. Soon the children had many new friends, with whom they shared food, stories and projects. "My children have never been lonely, "the reporter said.
The young, in turn, save the old. Once I was in a rest home (an organization where old people are cared for) when a visitor showed up with a baby, she was immediately surrounded. People who hadn't gotten out of bed in a week suddenly were ringing for a wheelchair. Even those who had seemed asleep woke up to watch the child. Babies have an astonishing power to comfort and cure.
Grandparents are a special case. They give their grandchildren a feeling of security and continuity. As my husband put it "My grandparents gave me a deep sense that things would turn out right in the end." Grandchildren speak of attention they don't get from worried parents. "My parents were always telling me to hurry up, and my grandparents told me to slow down," one friend said. A teacher told me she can tell which pupils have relationships with grandparents: they are quieter, calmer and more trusting.
59．Now in an American family, people can find that___________.
A．children never live with their parents
B．not all working people live with their parents
C．old people are supported by their grandchildren
D．grandchildren are supported by their grandparents
60．Seeing a baby, the old people got excited because _______.
A．they had never seen a baby before
B．the baby was clever and beautiful
C．the baby brought them the image of life
D．the baby's mother would take care of them
61．Why are some children quieter, calmer and more trusting ?
A．Because they have relationships with their grandparents.
B．Because their worried parents ask them to act like that.
C . Because they have nothing to worry about.
D．Because their teachers ask them to act like that.
62．Which of the following can show the fact that the old often save the young?
A．The old can become friends of the children and the children may not feel lonely.
B．The old get excited when they see a baby.
C．The old can cure the young when they are sick.
D．Babies have an astonishing power to comfort and cure.
Mexico City is truly one of the most amazing cities in the world with a mixture of both the old and new world. From the moment your plane starts to land in this vast city, you know that your trip will be quite an adventure.
Once in your taxi and the moment you leave the airport, you are amazed at the large amount of slow traffic. The volume of the traffic can be stressful to some.
The "Paseo de la Reforma (改革大道)", running southwest across the city, is one of the major tourist and business areas in Mexico City with many high quality hotels only walking distance from great restaurants and other tourist attractions. The only problem you will have is trying to see all of these sites during your vacation time.
One of the most popular attractions in this area is the National Museum of Anthropology along the northwest part of the street. There are thousands of artifacts on display showing the history of the area and numerous items found from the many Aztec sites in the area. Walking southwest from the museum, you will soon reach the Mexico City Zoo, which is a great place to spend an afternoon.
Across the street from the museum is the Chapultepec Castle, once an important site in the Mexican-American war. It's also a good idea to take the train up the hill to where the castle is located as the hill is steep (陡峭的). It's important to keep in mind that Mexico City is over 7,000 feet above sea level and some feel it difficult to breathe when walking.
You can take a taxi to the Coyoacan market during the evening on a weekend. It's a great place to get some cheap souvenirs to bring back home and to enjoy some traditional Mexican cuisine. However, you must be careful where you eat and that the meat is well cooked.
55．The tourists in Mexico City may not be satisfied with______.
A．the high speed of the traffic B．the heavy traffic of the city
C．the polluted air in the city D．their safety in the city
56．From the third paragraph, we can learn that______.
A．the number of the city attractions can't meet the needs of the tourists
B．it is convenient for tourists to visit the city from where they stay
C．tourists have problems when visiting the sites in Mexico City
D．tourists often have their three meals in the high quality hotels
57．Which of the following shows the correct positions of the following places?
P =" Paseo" de la Reforma M =" the" National Museum of Anthropology
C =" the" Chapultepec Castle Z =" the" Mexico City Zoo
58．Which of the following attractions may interest those who want to study the military (of the army) history of Mexico City?
A．The National Museum of Anthropology. B．The Coyoacan market.
C．The Chapultepec Castle. D．The Aztec sites.
第三部分：阅读理解（共20小题：每小题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Football, to me, is more than just a game. I have probably learned more than valuable lessons from it than from school.
When I joined the team freshman year, I didn’t realize what I was getting into. Even though I had been playing since fourth grade and knew it was hard work, nothing would prepare me for the effort I would put into football that year. We worked all summer in the weight room and ran on the track to get in physical and mental shape before the season.
See, football is more of a mental sport than anything else, so running on the track wasn’t only about getting in shape. We would push our minds by running as hard as we could even if we felt like we were going to pass out. At the beginning, I was immature (幼稚的) and only thought of myself, sometimes even giving up when I was tired or hurting. Then after the third game I had a season-ending injury. Imagine working all summer and then only being able to play three games! I needed an operation on my arm and at least five months to recover.
After freshman year I decided that I would always give my best effort. Playing football in the college has taught me so much more than just what my tasks are on a particular play or how to block. I have learned to think about others first, and realized how important working hard is. Being with all my friends, even sweating and bleeding with them, really made us unite as a group of hard-working young men, who will succeed in life.
51．What is the text mainly about?
A．How the author dislikes the game of football.
B．When the author began to play football.
C．How the author has changed his attitude to football.
D．What sport the author likes best.
52．The author thinks football is ________.
A．just a game B．of a mental sport
C．hard to be out-of-date D．not worth his effort
53．From the text we can infer ________.
A．the author joined the football team with a clear aim.
B．football only brought the author certain tasks
C．the author worked all summer to get ready for the season.
D．the author never lost heart when he met with difficulties.
54．In the third paragraph, the phrase“getting in shape”probably means ________.
A．becoming physically fit B．designing the playground
C．losing weight D．measuring the track
One afternoon after school had finished , Peter and Jane were walking along the street. Suddenly they heard a big noise.
“Come on” shouted Peter.“That sounds like an accident. Let’ see what’s happened.”
They ran to where the noise came from. As soon as they got there, they could see what had happened. A small car had knocked into the side of a truck. The accident had happened in a quiet street with only four houses in it. Peter and Jane were the first ones to reach the site. No other people came.“We must be the only ones who saw the accident,” said Jane. They found that both the car driver and the truck driver were hurt.
“Peter,” said Jane,“ Run back down the road to Mrs Day’s house. Ask her to call the policemen and the ambulance. Hurry. I’ll stay here.”
Off went Peter as fast as he could. There was nothing Jane could do but wait. She knew that when people were hurt in an accident, they shouldn’t be moved. It wasn’t long before the police car and the ambulance arrived. The policeman got the car door open and they carried the man out. Then they got the truck driver out. The men weren’t seriously hurt, but they were both taken to the hospital. The policemen thanked Peter and Jane, “You were very good to act so quickly when you saw the accident. Thank you for all your help.”
67.The accident happened _______.
A. in a quiet street one school day afternoon
B. in a busy street one school day afternoon
C. in a quiet street one Sunday after noon
D. in a busy street one Sunday afternoon
68. ______in the accident.
A. Only the car driver was hurt B. Only the truck driver was hurt
C. Neither of the two drivers was hurt D. Both the drivers were hurt
69._____called the policeman.
A.Jane B.The drivers C. Mrs Day D. Peter
70.Jane did nothing before the policemen arrived because _____.
A. she was too frightened to do anything B. she was alone after Peter left
C. she was waiting for Peter
D. she knew she shouldn’t move the two drivers
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