1 . Stages of Hurricane: Simple Storms Grow Into Giants
A storm progresses through four different stages before it is actually considered a hurricane. First is a tropical disturbance (热带扰动), which has thunderstorms and rotating (旋转) winds. Next is a tropical depression (热带低气压), which is similar to a tropical disturbance, but has winds between 23 and 39 miles per hour. A tropical storm is the next level, which has stronger wind speeds between 40and 73 miles per hour. Once winds reach 74 miles per hour the storm is officially called a hurricane. The wind picks up energy from the warm surface ocean water.
As a hurricane crosses over land, it begins to become weaker or break apart and reduce in strength. This is because it is no longer over the warm ocean water that it needs for energy. At this point, a hurricane can still cause a lot of damage because of high winds, rain, and flooding. But unless it makes its way back over the open ocean, it is downgraded from a hurricane back to a tropical storm.
What’s Your Name, Hurricane?
Hurricanes and tropical storms are given names to help people recognize them. Scientists refer to hurricanes and storms by name as they track them across the ocean.
Before 1953, hurricanes were not given official names. From 1953 through 1978, hurricanes were only given female names, like Isabel, Camille, Claudette, and Wilma. Beginning in 1979, hurricanes were given the names of both women and men. Today, the names alternate male and female, and they are named in order of letters.
For example, in 2010, storms were named as follows: Alex (male), Bonnie (female), Colin (male), Danielle (female), Earl (male) and so on…
There are six different lists of names that change, so the same names are used every six years. The only way that a new name is added is when a hurricane has been particularly deadly or costly and the name is retired, then replaced with a new one.
1. Which of the following is the right order of stages of a hurricane?| A．Tropical depression, tropical disturbance, tropical storm, hurricane |
| B．Tropical disturbance, tropical depression, tropical storm, hurricane |
| C．Tropical storm, tropical depression, tropical disturbance, hurricane |
| D．Tropical storm, tropical disturbance, tropical depression, hurricane |
| A．It breaks apart and forms tornadoes. | B．It returns to the ocean afterwards. |
| C．It moves more quickly. | D．It becomes less powerful. |
| A．take turns between | B．carry or |
| C．come from | D．cause trouble to |
| A．Six common hurricane names are often used. |
| B．An old name will be replaced every year. |
| C．Most of them are deadly and costly. |
| D．They didn’t have official names until 1953. |
2 . One advantage of the Internet is shopping conveniently online for clothes; one disadvantage of the Internet is also shopping conveniently online for clothes.
“Nothing fits,” said Lam Yuk Wong, a senior in electrical and computer engineering at Rice University. “Everyone says this. They order clothes and they don’t fit. People get very unhappy.”
Wong and her design partner, Xuaner “Cecilia” Zhang, are Team White Mirror, creators of what they call a “virtual (虚拟) fitting room”. Their goal is simple and consumer-friendly: to let online clothing shoppers have a perfect fit and a perfect look when shopping every time.
Both women are from China, Wong from Hong Kong and Zhang from Beijing. They both order most of their clothing online. They got the idea from their own experience as consumers and from listening to the complaints of friends and relatives. “They say, ‘The color is wrong’ or ‘I got the right size but it still does not fit.’ We want to make it like you’re in the store trying on the clothes,” Zhang said.
Using a Kinect developed by Microsoft for use with its Xbox 360 video game player,
Zhang scans Wong and turns her image into, in effect, a virtual model, keeping Wong’s dimensions (尺寸), and even her skin and hair color. “We put the clothes on the shopper’s 3-D body models and show how they look when they are dressed,” Wong said. So far, Wong and Zhang have adapted the software to show dresses and shirts, and they are now working on shorts.
Asked if she thought men as well as women might be interested in using their virtual fitting room, Wong said, “I think their wives will care about this, so it will also be important to men.”
1. Why is shopping conveniently online for clothes a disadvantage?| A．Clothes bought online may not fit. |
| B．Students may easily get addicted to it. |
| C．It attracts more online clothing shoppers. |
| D．It causes shoppers to waste too much money. |
| A．the Xbox 360 video game player | B．a program at their university |
| C．some shop-owners’ complaints | D．their shopping experiences |
| A．scanning—trying on clothes—getting images |
| B．trying on clothes—getting models—scanning |
| C．scanning—getting models—trying on clothes |
| D．trying on clothes—getting images—scanning |
| A．It is perfectly developed. |
| B．It will have its market share. |
| C．It is limited to women shoppers. |
| D．It is like a kind of video game player. |
3 . A new tool of communication called the "drift diary" is doing the rounds among young college graduates.
The "drift diary", like those ancient paper messages put into a bottle left to drift on the high seas to reach hundreds of miles away, connects lonely hearts. It was first started by a Beijing woman, who goes by the screen name Little S, in 2007.It has become the preferred tool of communication among youngsters afraid to reveal their innermost self to peers, but wanting to share their lives with others. The way it works is that the initiator（发起人）of the diary mentions it on popular Internet forums such as Tianya and Douban. Those wanting to react or otherwise add to the diary then send their real names and addresses to the initiator via e-mails or text messages.
The numbers in one group are usually restricted to between 30 and 50. The diary then is passed on to another by the express delivery or personal handover. The diary writers are mostly anonymous（匿名的）but if they wish to reveal their identity they can do so by posting their contact information at the end of their postings.
The diary writers not just add words but also decorate the plain notebooks with cartoons, drawings or even dress it up with a ribbon or a new cover. Interesting experiences, travel journals, the simple joys of everyday living or sweet recollections of childhood, all find a place in these diaries. Most often, though, the writers set down their frustrations and predicaments.
It usually takes one year for a diary to return to the initiator. The last recorder is the luckiest one, with access to all previous entries, while others can request photocopies of them from the diary's initiator.
1. Why is the "drift diary" popular among youngsters?| A．Because they hate using the Internet. |
| B．Because they like to show themselves to peers. |
| C．Because they want to share their lives with strangers. |
| D．Because they find it fashionable to be a diary writer. |
①The diary then is passed on between the recorders.
②The diary returns to the initiator.
③The initiator of the diary makes a mention online.
④Participants request photocopies of the diary from the diary's initiator.
⑤Those who want to participate in the program get in touch with the initiator.
| A．③⑤①④② | B．③⑤①②④ |
| C．④⑤①②③ | D．①③⑤②④. |
| A．Successful experiences. | B．Sense of achievement. |
| C．Difficult situations. | D．Favorable conditions. |
| A．Drift Diary——A New Tool of Communication |
| B．How a Drift Diary Works |
| C．Share Your Lives with Strangers |
| D．The Diary Passed on |
On Thanksgiving weekend, the Heffelmire family gathered for a meal at their home. After dinner, the family went down to the finished basement to relax except Charlotte’s father, Eric, who was in the garage to fix his truck．
Around 8 p.m., Charlotte decided to check on her dad. She walked through the kitchen. When she opened the side door to the garage, black smoke rose up into the kitchen. She could barely make out her father lying on his back, trapped under the truck. He’d removed the front passenger-side tyre and raised the truck on a jack（千斤顶）. The truck had slipped off the jack, and now the whole weight of the wheel was on his chest and shoulders．
Charlotte ran to the front of the truck and struggled to lift it. Eric was still conscious, and he yelled, “You got it! One more try!” She tried again and was able to tip the truck backward just enough for her to pull her dad by the shirt with both hands from under the truck．
She dragged him across the garage and 20 feet down the driveway. Then she ran back to the garage, which had burst into flames. “I was afraid the car was going to explode,” says Charlotte, so she climbed into the truck, which faced forward, turned the key, and pressed the gas pedal（油门）. The car slowly rolled out, the metal wheel scratching loudly against the concrete．
Safely on the driveway, Charlotte stopped the truck and ran back to the basement. “There’s a fire! Everybody get out!” she yelled as she picked up her three-month-old niece and ran out. Outside, she handed the baby to her mom, and then ran around to the burning garage. She picked up a garden hose（水管）and sprayed the fire while calling 911．
A few minutes later, firefighters and an ambulance arrived. Charlotte was treated for second-degree burns on both her feet and face. Her dad had injuries on his chest and shoulders, as well as minor burns on his face. The garage and the house were damaged but the family survived．
The Heffelmires are staying in an apartment while their house is rebuilt. “Charlotte is a remarkable kid,” says her dad. Charlotte, however, simply says, “ I was saving my family and my house. I wasn’t going to let my dad die.”
1. Eric got trapped because_________| A．the truck slipped off the jack. |
| B．the wheel fell off the truck. |
| C．the front tyre was removed. |
| D．the kitchen was on fire. |
a. Charlotte called the firefighters．
b. Charlotte saved Eric from under the truck．
c. Charlotte drove the truck out of the garage．
d. Charlotte warned the family to leave the house．
| A．b, c, a, d | B．a, b, d, c |
| C．b, c, d, a | D．a, c, b, d |
| A．the house was not fit to live in. |
| B．the truck exploded. |
| C．the three-month-old baby was injured. |
| D．Charlotte was burned on her chest and shoulders. |
| A．proud and clear-headed. |
| B．calm and quick-minded. |
| C．modest and easy-going. |
| D．independent and self-centered. |
In 1884 he started a humorous weekly The Rolling Stone. When the weekly failed, he joined The Houston Post as a reporter and columnist（专栏作家）. In 1897 he was put into prison over some financial（财务的）dealings. While in prison, William started to write short stories to earn money to support his daughter Margaret. His first work, Whistling Dick’s Christmas Stocking(1899), appeared in McClure’s Magazine. After serving three years of the five years’ sentence，he changed his name to O. Henry, hoping to forget his bitter past.
O. Henry moved to New York City in 1902 and from December 1903 to January 1906 he wrote a story a week for the New York World, and also published the stories in other magazines. His first collection, Cabbages and Kings, appeared in 1904. Many other works quickly followed, such as The Gift of the Magi and The Furnished Room. O. Henry’s best- known work is The Ransom of Red Chief. His stories always have surprising endings. He published 10 collections and over 600 short stories during his lifetime.
O. Henry’s last years were shadowed by drinking, ill health, and financial problems. In 1907, he experienced a failed marriage. In 1910, O. Henry died after an illness.
1. What’s the passage mainly about?
| A．A brief introduction to O. Henry. |
| B．O. Henry’s career and marriage. |
| C．How O. Henry became a well-known writer. |
| D．O. Henry’s best- known works. |
| A．didn’t like to study during his childhood |
| B．had little parental love as a child |
| C．was very interested in medicine and farming |
| D．took up only one job after he moved to Houston |
| A．he got involved in some problems connected with money |
| B．he joined The Houston Post as a reporter and columnist |
| C．his weekly The Rolling Stone failed |
| D．he couldn’t earn enough money to support his daughter |
① He moved to New York City.
② He joined The Houston Post.
③ Whistling Dick’s Christmas Stocking came out.
④ The Furnished Room came out.
⑤ Cabbages and Kings appeared.
| A．①②③④⑤ | B．②①③⑤④ |
| C．③②①④⑤ | D．②③①⑤④ |
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys' blood go through a machine. The machine cooled the blood. Then the machine sent the blood back to the monkeys' brains. When the brain' s temperature was 10°C, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them.
1. The biggest difficulty in operating on the damaged brain is that _______.
| A．the time is too short for doctors |
| B．the patients are often too nervous |
| C．the damage is extremely hard to fix |
| D．the blood-cooling machine might break down |
| A．taking the blood out of the brain |
| B．trying the operation on monkeys first |
| C．lowering the brain' s temperature |
| D．having the blood go through a machine |
a. send the cooled blood back to the brain
b. stop the blood to the brain
c. have the blood cooled down
d. operate on the brain
| A．a,b,c,d | B．c,a,b,d |
| C．c, b, d, a | D．b, c, d, a |
| A．can last as long as 30 minutes |
| B．can keep the brain's blood warm |
| C．can keep the patient's brain healthy |
| D．can help monkeys do different jobs |
Recently, two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, demonstrated (展示) a small robotic wheelchair directed by a person's thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of nerve cells. These send signals through the spinal cord (脊髓) to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles.” Tavella says. “Our system allows disabled people to communicate with external world and also to control devices.”
The researchers designed a special cap for the user. This head cover picks up the signals from the scalp (头皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.
Prof. Millan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technology over long periods of time.
1. BCI is a technology that can ________.
| A．help to update computer systems |
| B．link the human brain with computers |
| C．help the disabled to recover |
| D．control a person's thoughts |
| A．By controlling his muscles. |
| B．By talking to the machine. |
| C．By moving his hand. |
| D．By using his mind. |
| A．scalp→computer→cap→wheelchair |
| B．computer→cap→scalp→wheelchair |
| C．scalp→cap→computer→wheelchair |
| D．cap→computer→scalp→wheelchair |
| A．make profits from them |
| B．prove the technology useful to them |
| C．make them live longer |
| D．learn about their physical condition |
| A．Switzerland, the BCI Research Center |
| B．New Findings About How the Human Brain Works |
| C．BCI Could Mean More Freedom for the Disabled |
| D．Robotic Vehicles Could Help to Cure Brain Injuries |
8 . Suppose that we lined up our roughly 14 million United States businesses in order of size, starting with the smallest, along an imaginary road from San Francisco to New York. There will be 4,500 businesses to the mile, or a little less than one per foot. Suppose further that we planted a flag each business. The height of the flag pole represents the yearly volume of sales (销量) , each $ 10, 000 in sales in shown by one foot of pole.
The line of flagpoles is a very interesting sight. From San Francisco to about Reno, it is almost unnoticeable, a row of poles about a foot high. From Reno eastward the poles increase in height until, near Columbus, Ohio - about four - fifths of the way across the nation - flags fly about 10 feet in the air.
But as we approach the eastern terminus (终点) , the poles suddenly begin to mount (升高) . There are about 300, 000 firms in the country with sales over $ 500, 000. These firms take up the last 75 miles of the 3,000 - mile road. There are 200, 000 firms with sales over $ 1 million. They take up the last 50 miles. Then there are 1, 000 firms with sales of $ 50, 000, 000 or more. They take up the last quarter of a mile before the city limits, flags flying at cloud height, 5 , 000 feet up .
At the very gate of New York, on the last 100 feet of the last mile , we find the 100 largest industrial firms . They have sales of at least $ 1.5 billion, so that their flags are already miles high. Along the last 10 feet of road , there are 10 largest companies . Their sales are roughly $ 10 billion and up : their flags fly 190 miles in the air , almost in the stratosphere (平流层) .
1. What is the author’s main purpose in this passage?| A．To tell the reason why the largest firms are in New York. |
| B．To show the geographical distribution (分布) of the United States businesses. |
| C．To provide a general idea of the size of businesses in the United States. |
| D．To tell us how the United States businesses are arranged. |
| A．San Francisco, Reno, New York, Columbus. |
| B．San Francisco, Reno, Columbus, New York. |
| C．New York, Columbus, Reno, San Francisco |
| D．New York, Reno, Columbus, San Francisco |
| A．The last 75 miles. | B．The last 50 miles. |
| C．The last 100 feet of the last mile. | D．The last quarter of a mile |
S =" San" Francisco R =" Reno" C =" Columbus" N =" New" York H =" height" F = feet
A． | B． | C． | D． |
Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis (光合作用)．Now researchers have found a way to imitate this seemingly simple process.
The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts (催化剂)．Similar to natural leaves，it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell，which uses those two materials to produce electricity，located either on top of a house or beside the house.
Though the leaf is only about the shape of a poker card，scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. “One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology,” said Nocera at a conference of the American Chemical Society.
The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf，by contrast，is made of cheap materials，easy to use and highly stable. In laboratory studies，Nocera showed that an artificial leaf prototype (原型) could operate continuously for at least 45 hours without a drop in activity.
The wonderful improvements come from Nocera's recent discovery of several powerful，new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now，the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides，the device can run in whatever water is available；that is，it doesn't need pure water. This is important for some countries that don't have access to pure water.
With the goal to “make each home its own power station” and “give energy to the poor”，scientists believe that the new technology could be widely used in developing countries，especially in India and rural China.
1. Which of the following orders correctly shows how the artificial leaf is used to produce electricity?
a．artificial leaves split water into hydrogen and oxygen
b．the hydrogen and oxygen gases are stored in a fuel cell
c．the artificial leaves are put in water
d．the fuel cell uses hydrogen and oxygen to produce electricity
| A．c，a，b，d | B．c，b，a，d |
| C．b，c，a，d | D．c，a，d，b |
| A．build up more power stations in the world |
| B．provide cheaper energy for developing countries |
| C．offer people in developing countries access to pure water |
| D．gain a deeper understanding of the photosynthesis process |
| A．an introduction to the history of artificial leaves |
| B．a mixture of water power and solar energy |
| C．giving energy to the poor |
| D．an invention copying photosynthesis |
Gerner manages school facilities （设施） for Clark County, Nevada, a district roughly the size of Massachusetts. By 2018, 143,000 additional students will enter the already crowded public-education system. Gerner needs 73 new schools to house them. Four architecture teams have nearly finished designing primary school prototypes （样品）; they plan to construct their schools starting in 2009. The district will then assess how well the schools perform, and three winners will copy those designs in 50 to 70 new buildings.
Green schools are appearing all over, but in Clark County, which stands out for its vastness, such aggressive targets are difficult because design requirements like more natural light for students go against the realities of a desert climate. “One of the biggest challenges is getting the right site orientation （朝向）,”Mark McGinty, a director at SH Architecture, says. His firm recently completed a high school in Las Vegas. “You have the same building, same set of windows, but if its orientation is incorrect and it faces the sun, it will be really expensive to cool.”
Surprisingly, the man responsible for one of the most progressive green-design competitions has doubts about ideas of eco-friendly buildings. “I don’t believe in the new green religion,” Gerner says. “Some of the building technologies that you get are impractical. I’m interested in those that work.” But he wouldn’t mind if some green features inspire students. He says he hopes to set up green energy systems that allow them to learn about the process of harvesting wind and solar power. “You never know what’s going to start the interest of a child to study math and science,” he says.
1. How did the architects react to Gerner’s design requirements?
| A．They lost balance in excitement. | B．They showed strong disbelief. |
| C．They expressed little interest. | D．They burst into cheers. |
| A．Assessment — Prototype — Design — Construction. |
| B．Assessment — Design — Prototype — Construction. |
| C．Design — Assessment — Prototype — Construction. |
| D．Design — Prototype — Assessment — Construction. |
| A．The large size. | B．Limited facilities. |
| C．The desert climate. | D．Poor natural resources. |
| A．They are questionable. | B．They are out of date. |
| C．They are advanced. | D．They are practical. |
