D
An altimeter(高度计) is an instrument used in an airplane to tell the pilot how high he is flying. The altimeter used in most airplanes is a kind of barometer(气压计), which, like barometer found in ordinary homes, is a measuring instrument for air pressure. The weight of the atmosphere presses downwards everywhere. At sea level this pressure is more than 14 pounds on every square inch of the surface. The higher you go into the air, the lower the air pressure is. An altimeter measures this air pressure to show the altitude of the airplane, or, how high it is above sea level.
But the altimeter does not show how high the plane is above the ground. A plane might be flying at an altitude of 15,000 feet, but it would be only a thousand feet or so above the ground if the land in that area happened to be 14,000 feet above sea level. The pilot adjusts his altimeter to the actual sea-level pressure before leaving the airport and then corrects it in flight by new information given to him by radio. He flies high enough to be above any mountain he may pass on his course .The barometer altimeter is correct within about 300 feet.
Another kind of altimeter, the radio altimeter, makes use of radio reflection. It calculates the height of the flying plane by sending out electrical signals to the surface below and measuring the time required for them to bounce back(反弹). It is correct within 15 feet over water, but is not reliable over land. Big planes usually have both kinds of altimeter.
67. Which of the following diagrams gives the correct relationship between altimeters and barometers? (a----altimeters, b----barometers)
68. The following drawing shows a plane flying over a mountain. Which of the heights given in the drawing is given by the barometer altimeter in the plane at this moment?
69. Suppose a plane using a radio altimeter is flying 10,000 meters above highland which is 4,000 meters above sea level. What reading will be given by the altimeter?
A.10,000meters. B. 4,000meters. C.14,000meters. D. 6,000 meters.
70. Suppose a plane using both kinds of altimeters is flying over a mountainous area where the land rises and falls very abruptly (迅速地). The pilot keeps his plane steady at the same height. What kind of reading will you get on each of the altimeters?
A. The readings on both altimeters will remain steady.
B. The readings on both altimeters will rise and fall abruptly.
C. The readings on the barometer altimeter will rise and fall abruptly, while that on the radio altimeter will remain steady.
D. The readings on the radio altimeter will rise and fall abruptly, while that on the barometer altimeter will remain steady.
Michael Fish may soon be replaced as a weather forecaster by something truly fishier---the shark(鲨鱼).
Research by a British biology student suggests that sharks could be used to predict storms.
Lauren Smith, 24, is close to completing her study on shark’s ability to sense pressure.
If her studies prove the theory, scientists may be able to monitor the behaviour of sharks to predict bad weather.
Miss Smith had previously studied the behaviour of lemon sharks in the Bahamas.
She then used their close relatives, lesser spotted dogfish, for further research at Aberdeen University.
Her work---thought to be the first of its kind to test the pressure theory ---- resulted from the observation that juvenile blacktip sharks off Florida moved into deeper water ahead of a violent storm in 2001.
Miss Smith said: “I’ve always been crazy about traveling and diving and this led me to an interest in sharks.”
“I was delighted to have been able to research in the area for my degree. I know there’s so much more we need to understand ---- but it certainly opens the way to more research.”
It has been discovered that a shark senses pressure using hair cells in its balance system.
At the Bimini Shark Lab in the Bahamas, Miss Smith fixed hi-tech sensors to sharks to record pressure and temperature, while also tracking them using GPS (Global Positioning System) technology.
In Aberdeen, she was able to study the effects of tidal(潮汐的) and temperature changes on dogfish----none of which were harmed. She also used a special lab which can mimic(模拟) oceanic pressure changes caused by weather fronts.
She is due to complete her study and graduate later this year. She says she will be looking for a job which will give her the chance to enrich her experience of shark research.The passage is most probably taken from _____.
| A．a short-story collection | B．a popular science magazine |
| C．a research paper | D．a personal diary |
What do we learn from the first four paragraph of the passage?
| A．Sharks may be used to predict bad weather. |
| B．Sharks’ behaviour can be controlled. |
| C．Michael Fish is not qualified for his job. |
| D．Lauren Smith will become a weather forecaster. |
Lauren Smith conducted her research by _______.
| A．removing hair cells from a shark’s balance system |
| B．measuring the air pressure of weather fronts |
| C．recording sharks’ body temperature |
| D．monitoring sharks’ reaction to weather changes |
What is the passage mainly about?
| A．A popular way of forecasting weather. |
| B．A new research effort in predicting storms. |
| C．Biologists’ interest in the secrets of sharks. |
| D．Lauren Smith’s devotion to scientific research. |
Sandra Cisneros was born in Chicago in 1954 to a Mexican American family. As the only girl in a family of seven children, she often felt like she had “seven fathers,” because her six brothers, as well as her father, tried to control her. Feeling shy and unimportant, she retreated(躲避) into books. Despite her love of reading, she did not do well in elementary school because she was too shy to participate.
In high school, with the encouragement of one particular teacher, Cisneros improved her grades and worked for the school literary magazine. Her father encouraged her to go to college because her thought it would be a good way for her to find a husband. Cisneros did attend college, but instead of searching for a husband, she found a teacher who helped her join the famous graduate writing program at the University of Iowa. At the university’s Writers’ Workshop, however, she felt lonely----a Mexican American from a poor neighborhood among students from wealthy families. The feeling of being so different helped Cisneros find her “Creative voice.”
“It was not until this moment when I considered myself truly different that my writing acquired a voice. I knew I was a Mexican woman, but I didn’t think it had anything to do with why I felt so much imbalance in my life, but it had everything to do with it! That’s when I decided I would write about something my classmates couldn’t write about.”
Cisneros published her first work, The House on Mango Street, when she was twenty-nine. The book tells about a young Mexican American girl growing up in a Spanish-speaking area in Chicago, much like the neighborhoods in which Cisneros lived as a child. The book won an award in 1985 and has been used in classes from high school through graduate school level. Since then, Cisneros has published several books of poetry, a children’s book, and a short-story collection.Which of the following is TRUE about Cisneros in her childhood?
| A．She had seven brothers. | B．She felt herself a nobody. |
| C．She was too shy to go to school. | |
| D．She did not have any good teachers. |
The graduate program gave Cisneros a chance to _____.
| A．work for a school magazine | B．run away from her family |
| C．make a lot of friends | D．develop her writing style |
According to Cisneros, what played the decisive role in her success?
| A．Her early years in college. | B．Her training in the Workshop. |
| C．Her feeling of being different. | D．Her childhood experience. |
What do we learn about The House on Mango Street?
| A．It is quite popular among students. |
| B．It is the only book ever written by Cisneros. |
| C．It wasn’t success as it was written in Spanish. |
| D．It won an award when Cisneros was twenty-nine. |
Weather changes when the temperature and the amount of water in the atmosphere change. We can see and feel water coming from the atmosphere when we have rain. But the water must somehow get back to the atmosphere. Meteorologists call this the water cycle.
There are many stages in the water cycle. Rain falls when water vapor in clouds condenses(凝结). Drops of water form and fall to the ground. The water soaks into the ground and feeds streams and rivers. A lot of rain falls into the sea. The heat of the sun evaporates some of the water in the ground and in the rivers, lakes, and the sea. It changes the liquid water into water vapour. The vapour rises onto the air. Water vapour is normally invisible. On a very damp or humid day, however, you can sometimes see water vapour rising from a puddle(水坑) or pond in a mist(薄雾) above the water. Water vapour also gets into the air from living things. Trees and other plants take in water through their roots and give off water vapour from their leaves. People and land animals drink water and breathe out water vapour. In all these ways the water returns to the air. There it gathers to form clouds and condenses to form rain. The rain falls to earth, and the cycle starts again. It continues even if snow or hail(冰雹) fall instead because both eventually melt to form water. The amount of water vapour in the air depends on the temperature. The air is more moist(潮湿) in the tropics(热带) than in the cold polar regions. What is the main idea of the passage?
| A．Water cycle. |
| B．Water vapour. |
| C．How rain forms. |
| D．Water, vapour, rain. |
How many ways of the water returning to the air are discussed in the text?
| A．Two. | B．Three. | C．Four. | D．Five. |
Whether water vapour can be seen or not depends on _______.
| A．how much water is evaporated |
| B．how good your eyes are |
| C．in which way water is evaporated |
| D．climate or weather |
From the passage we get to know _______.
| A．there is more water vapour in the air in the tropics than in cold polar regions |
| B．there is more water vapour in the air in cold polar region than in the tropics |
| C．it gets more rain in the tropics than in cold polar regions because there is less vapour |
| D．the amount of water vapour in the air depends on how often it rains |
Growing up in Philadelphia, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickly learned what was the best way to bake his cakes. Lieberman improved his kitchen skills greatly during a year abroad before college, learning from a cook in Italy and studying local specialties（地方特色菜）in Germany, Spain and France. At Yale, he was known for throwing dinner parties, single-handedly frying and baking while mixing drinks for dozens of friends. Just for fun, he and some friends decided to tape a show named Campus Cuisine about his cooking. Lieberman was a real college student showing his classmates how to do things like make drinks out of dining-hall fruit. That helped the show become very popular among the students. They would stop Lieberman after classes to ask for his advice on cooking. Tapes of the show were passed around, with which his name went beyond the school and finally to the Food Network.
Food Network producer Flay hopes the young cook will find a place on the network television. He says Lieberman’s charisma is key. “Food TV isn’t about food anymore,” says Flay. “It’s about your personality（个性）and finding a way to keep people’s eyeballs on your show.”
But Lieberman isn’t putting all his eggs in one basket. After taping the first season of the new how, Lieberman was back in his won small kitchen preparing sandwiches. An airline company was looking for some one to come up with a tasteful, inexpensive and easy-to-make menu to serve on its flights, Lieberman got the job. We can learn from the text that Lieberman’s family ___________.
| A． have relatives in Europe | B．love cooking at home |
| C． often hold parties | D．own a restaurant |
The Food Network got to know Lieberman______________.
| A．at one of this parties | B． from his teachers |
| C．through his taped show | D．on a television program |
What does the word “charisma” underlined in the text refer to ?
| A．A natural ability to attract others. |
| B．A way to show one’s achievement. |
| C．Lieberman’s after-class interest. |
| D．Lieberman’s fine cooking skill. |
Why did the airline company give Lieberman the job?
| A．He could prepare meals in a small kitchen. |
| B．He was famous for his shows on Food TV. |
| C．He was good at using eggs to make sandwiches. |
| D．He could cook cheap ,delicious and simple meals. |
What can we learn about Lieberman from the text?
| A．He is clever but lonely. |
| B．He is friendly and active. |
| C．He enjoys traveling around. |
| D．He often changes his meals. |
Zoe Chambers was a successful PR (Public Relations) consultant and life was going well—she had a great job, a beautiful flat and a busy social life in London. Then one evening in June last year, she received a text message telling her she was out of work. The first two weeks were the most difficult to live through." she said. "After everything I'd done for the company, they dismissed me by text! I was so angry and I just didn't feel like looking for another job. I hated everything about the city and my life."
Then, Zoe received an invitation from an old school friend, Kathy, to come and stay. Kathy and her husband, Huw, had just bought a farm in north-west Wales. Zoe jumped at the chance to spend a weekend away from London, and now, ten months later, she is still on the farm.
"The moment I arrived at Kathy's farm, I loved it and I knew I wanted to stay." said Zoe. "Everything about my past life suddenly seemed meaningless."
Zoe has been working on the farm since October of last year and says she has no regrets. "It's a hard life, physically very tiring." she says. "In London 1 was stressed and often mentally exhausted. But this is a good, healthy tiredness. Here, all 1 need to put me in a good mood is a hot bath and one of Kathy's wonderful dinners."
Zoe says she has never felt bored on the farm. Every day brings a new experience. Kathy has been leaching her how to ride a horse and she has learnt to drive a tractor. Since Christmas, she has been helping with the lambing—watching a lamb being born is unbelievable, she says, "It's one of the most moving experiences I've ever had. I could never go back to city life now." （08上海卷）When working as a PR consultant in London, Zoe thought she lived a______life.
| A．satisfying | B．tough | C．meaningless | D．boring |
The most important reason why Zoe went to visit Kathy's farm is that______.
| A．Zoe lost her job as a PR consultant | |
| B．Kathy persuaded her to do so | |
| C．Zoe got tired of the city life | D．Zoe loved Wales more than London |
How docs Zoe feel about the country life according to the passage?
| A．Tiresome and troublesome. |
| B．Romantic and peaceful |
| C．Mentally exhausting but healthy |
| D．Physically tiring but rewarding. |
Which of the following is closest to the main idea of the passage?
| A．A friend in need is a friend indeed. |
| B．Where there is a will, there is a way. |
| C．A misfortune may turn out a blessing. |
| D．Kill two birds with one stone. |