1 . More than two thirds of the world’s polar bears will be wiped out by 2050, according to a shocking new study. By then, scientists say, global warming will have melted 42 percent of the Arctic sea ice. By 2100, only a very few of these important creatures will be left.
The report has been produced by the US Geological Survey. The scientists have publicized their findings in the hope of influencing US Interior Secretary Dirk Kempthorne, who has been asked to put polar bears on the US endangered species list.
Polar bears depend on floating sea ice as a platform for hunting seals, which are their main food. Without enough ice, polar bears would be forced to go onto the land, where they are poorly skilled hunters, and would be unlikely to adapt to the life on the land in time. Experts say few little bears would survive and the stress could make many females unable to get pregnant.
The team of American and Canadian scientists spent six months studying bears, on the ground, from spotter planes and in the lab, using computer models. Some team members fear the result is even worse for the bears than what their report says. They say the Arctic is warming faster than anywhere in the world and much faster than their computer had been forecasting. Satellite observations have showed that the ice has decreased to an alltime low.
However, not everyone in the scientific community believes that global warming is happening on such an alarming scale. Another investigation has found that polar bears are still being hunted by wealthy “sportsmen” who want their skins and heads. At least ten international companies offer bearhunting trips.
1. What do we know about Dirk Kempthorne according to the passage?| A．He is an animal scientist. |
| B．He is a protector of animals working for the US government. |
| C．He was asked to put polar bears on the US endangered species list. |
| D．He offered to put polar bears on the endangered species list. |
| A．Because polar bears can’t catch enough food without ice. |
| B．Because polar bears eat ice when they feel thirsty. |
| C．Because polar bears will be easily found by hunters without ice. |
| D．Because most female bears are used to giving birth under ice. |
| A．there is something wrong with their computers |
| B．polar bears will disappear even faster than they ever expected |
| C．their computer models are not as accurate as they expected |
| D．global warming will destroy everything in the Arctic |
2 . Bike Share Toronto is the city’s official bike share program, designed to give locals and visitors a fun, affordable and convenient alternative to walking, taxis, buses and the subway. There are 200 Bike Share Toronto stations and 2,000 bikes across the city, making Bike Share the most accessible way to get around and explore.
How it works
● Become an Annual Member or buy a day Pass to access the system.
● Find an available bike nearby, and get a ride code or use your member key to unlock it.
● Take as many short rides as you want while your pass or membership is active.
● Return your bike to any station, and wait for the green light on the dock (停靠点) to make sure it’s locked.
Choose a plan
● For visitors
Day Pass: $7. Unlimited 30-minute rides in a 24-hour period.
3-Day Pass: $15. Unlimited 30-minute rides in a 72-hour period.
● For locals
Monthly Pass: $25. Unlimited 30-minute rides for a month.
Annual Membership: $90. Unlimited 30-minute rides for a whole year. The Annual Membership is the best deal for locals of Toronto and other frequent riders.
The first 30 minutes of each ride is included with the membership or pass price. Avoid extra fees by dropping off your bike every 30 minutes at any other station. If you keep a bike out for longer than 30 minutes at a time, you will be charged an extra $1.50 for the first 30 minutes over, $4 for the next 30 minutes, and $7 for each additional 30 minutes after that.
Contact us
● Customer Service: (855)898-2388
● Repair Service: (855)898-2378
● Corporation Partners: (855)898-2398
● Employment Opportunities: (855)898-2498
1. Which is the most suitable choice for locals in Toronto?| A．Day Pass | B．3-Day Pass | C．Monthly Pass | D．Annual Membership |
| A．$5.5 | B．$9.5 | C．$12.5 | D．$15.5 |
| A．(855)898-2388 | B．(855)898-2498 |
| C．(855)898-2398 | D．(855)898-2378 |
3 . Anti-Sleep Alarm
Price: US $5
EXTRA 5% OFF WHEN YOU BUY 2 OR MORE
Anti-Sleep Alarm is a new lifesaving anti-tiredness alarm. You just wear it behind the right ear. It works on the theory of electronic balance.
Working Theory
It is worn over the ear and has an electronic position sensor. When your head nods forward, it sounds a loud alarm to immediately wake you and warn your passengers.
Features
The Anti-Sleep Alarm features a driver safety alarm to help prevent accidents caused by falling asleep at the wheel. It is especially suitable for long-distance driving and night driving. The Anti-Sleep Alarm is also perfect for anyone who needs to stay awake on duty—guards, machine operators, and even students. It’s easy to use and can be comfortably worn for a long time.
● Alarm mode: sound di, di..
● Dimensions:80×22×15mm
● Battery: button cell battery (included)
● Life time: 30,000 nods
Payment
We accept PayPal only, with all major credit cards accepted through PayPal. Payment must be received within 7 business days after ordering.
Shipping
We ship to your eBay or PayPal address. Please make sure your eBay and PayPal address is correct before you pay. Goods will be shipped within 1-3 business days when we receive payment. Delivery（递送）time depends on destination. International buyers please note: Import duties（进口税）and taxes are not included in the price or shipping costs. Please check with your country’s customs office to determine what these extra costs will be before buying.
1. How much should be paid for 2 Anti-Sleep Alarms?| A．US $10. | B．US $9.5. |
| C．US $10.5. | D．US $9. |
| A．electronic balance | B．human body movement |
| C．anti-tiredness alarm | D．electronic position sensors |
| A．It is comfortable to wear. |
| B．It is big and easy to use. |
| C．It can work for 30,000 minutes. |
| D．It can be powered by any kind of battery. |
| A．The company will pay the extra costs. |
| B．Import duties and taxes are included in the price. |
| C．You will receive the goods within 1-3 business days. |
| D．The goods will be shipped to your eBay or PayPal address. |
4 . I was sure that I was to be killed. I became terribly nervous. I fumbled(摸索) in my pockets to see if there were any cigarettes, which had escaped their search. I found one and because of my shaking hands, I could barely get it to my lips. But I had no matches; they had taken those. I looked through the bars at the guard. He did not make eye contact with me. I called out to him “Have you got a light？” He looked at me, shrugged and came over to light my cigarette. As he came close and lit the match, his eyes unconsciously locked with mine. At that moment, I smiled. I don't know why I did that. Perhaps it was nervousness; perhaps it was because, when you get very close, one to another, it is very hard not to smile. In any case, I smiled. In that instant, it was as though a spark jumped across the gap between our two hearts, our two human souls. I know he didn't want to, but my smile leaped through the bars and caused a smile on his lips, too. He lit my cigarette but stayed near, looking at me directly in the eyes and continuing to smile.
I kept smiling at him, now thinking of him as a person and not just a guard. “Do you have kids？” he asked. “Yes, here, here.” I took out my wallet and nervously fumbled for the pictures of my family. He, too, took out the pictures of his family and began to talk about his plans and hopes for them. My eyes were filled with tears. I said that I feared that I'd never see my family again, never have the chance to see them grow up. Tears came to his eyes, too. Suddenly, without another word, he unlocked my cell and silently led me out. Out of the prison, quietly and by back routes, out of the town. There, at the edge of town, he released me. And without another word, he turned back toward the town.
1. What had happened to the man before?| A．He had been badly treated. |
| B．He had killed someone. |
| C．He had been searched. |
| D．He had been forbidden to get in touch with anyone. |
| A．Because he was sure he was to be killed. |
| B．Because he wanted to ease his nervousness. |
| C．Because he wanted to talk to the guard. |
| D．Because he was used to smoking cigarettes. |
| A．The man was a heavy smoker. |
| B．The man smiled to please the guard. |
| C．The guard set the man free with permission. |
| D．The man hadn't thought the guard would set him free. |
| A．The smile. | B．The cigarette. |
| C．The tears. | D．The wallet. |
5 . As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.
In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.
In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory (交互记忆)”
According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn’t mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.
1. The passage begins with two questions to ________.| A．introduce the main topic | B．show the author’s attitude |
| C．describe how to use the Internet | D．explain how to store information |
| A．Sparrow’s team typed the information into a computer. |
| B．The two groups remembered the information equally well. |
| C．The first group did not try to remember the formation. |
| D．The second group did not understand the information. |
| A．keep the information in mind |
| B．change the quantity of information |
| C．organize information like a computer |
| D．remember how to find the information |
| A．We are using memory differently. |
| B．We are becoming more intelligent. |
| C．We have poorer memories than before. |
| D．We need a better way to access information. |
6 . The baby is just one day old and has not yet left hospital. She is quiet but alert (警觉的). Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze(凝视) starts to lose its focus—until a third, with three black spots, is presented. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world?
Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly(随意地)on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise(同样地) when the researchers started with drumbeats and moved to spots.
1. The experiment described in Paragraph 1 is related to the baby's ________.| A．sense of hearing | B．sense of sight |
| C．sense of touch | D．sense of smell |
| A．the size of cards | B．the colour of pictures |
| C．the shape of patterns | D．the number of objects |
| A．To reduce the difficulty of the experiment. |
| B．To see how babies recognize sounds. |
| C．To carry their experiment further. |
| D．To keep the babies' interest. |
| A．Science fiction. | B．Children’s literature. |
| C．An advertisement. | D．A science report. |
My grandma, an amazing woman, graduated from college an the age of 65. She was the first in our family to reach that goal. But one year after I started college, she developed cancer. I made the choice to withdraw from college to care for her. It meant that school and my personal dream would have to wait.
Then I got married with another dream: building my family with a combination of adopt and biological children. In 1999, we adopted our first son. To lay eyes on him was fantastic---and very emotional. A year later came our second adopted boy. Then followed son No. 3. In 2003, I gave birth to another boy.
You can imagine how fully occupied I became, raising four boys under the age of 81. Our home was a complete zoo---a joyous zoo. Not surprising, I never did make it back to college full-time. But I never gave up on the dream either. I had only one choice: to find a way. That meant talking as few as one class each semester.
The hardest part was feeling guilty about the time I spent away from the boys. They often wanted me to stay home with them. There certainly were times I wanted to quit, But I knew I should set an example for them to follow through the rest of their lives.
In 2007, I graduated from the University of North Carolina. It took me over 21 years to get my college degree！
I am not special, just single-minded. It always struck me that when you’re looking at a big challenge from the outside it looks huge, but when you’re in the midst of it, it just seems normal. Everything you want won’t arrive in your life on one day. It’s a process. Remember；little steps add up to big dreams.
1. When the author went to Howard University, her dream was to be____.
| A．a writer |
| B．a teacher |
| C．a judge |
| D．a doctor |
| A．She wanted to study by herself. |
| B．She fell in love and got married. |
| C．She suffered from a serious illness. |
| D．She decided to look after her grandma. |
| A．She was busy yet happy with her family life. |
| B．She ignored her guilty feeling for her sons. |
| C．She wanted to remain a full-time housewife. |
| D．She was too confused to make a correct choice. |
| A．Failure is the mother of success. |
| B．Little by little, one goes far. |
| C．Every coin has two sides. |
| D．Well begun, half done. |
| A．Caring and determined. |
| B．Honest and responsible. |
| C．Ambitious and sensitive. |
| D．Innocent and single-minded. |
After World War II, the population of most large American cities decreased; however, the population in many Sun Belt cities increased. Los Angeles and Houston are cities where population shifts(转移) to and from the city reflect the changing values of American society. In the late 1940s and early 1950s, city residents(居民) became wealthier. They had more children so they needed more space. They moved out of their apartments in the city to buy their own homes. They bought houses in the suburbs(郊区)。
Now things are changing. The children of the people who left the cities in the 1950s are now adults. Many, unlike their parents, want to live in the cities. They continue to move to Sun Belt cities and older ones of the Northeast and Midwest. Many young professionals are moving back into the city. They prefer the city to the suburbs because their jobs are there; or they just enjoy the excitement and possibilities that the city offers.
This population shift is bringing problems as well as benefits. Countless poor people must leave their apartments in the city because the owners want to sell the buildings or make apartments for sale instead of for rent. In the 1950s, many poor people did not have enough money to move to the suburbs; now many of these same people do not have enough money to stay in the cities.
Only a few years ago, people thought that the older American cities were dying. Some city residents now see a bright, new future. Others see only problems and conflicts. One thing is sure: many dying cities are alive again.
1. What does the author think of cities all over the world?
| A．They are alive. | B．They are hopeless. |
| C．They are similar. | D．They are different. |
| A．Because older American cities were dying. |
| B．Because they were richer and needed more space. |
| C．Because cities contained the worst parts of society. |
| D．Because they could hardly afford to live in the city. |
| A．are faced with housing problems | B．are forced to move to the suburbs |
| C．want to sell their buildings | D．need more money for daily expenses |
| A．American cities are changing for the worse |
| B．people have different views on American cities |
| C．many people are now moving from American cities |
| D．the population is decreasing in older American cities |
