Squirrels often communicate with whistles, chirps and chucks, which sound like the word “chuck”. Whistles and chirps are like the sounds that many birds make. Now scientists have translated some of their squirrel-speak.
Hare, a professor of zoology at the University of Maniloha in Winnipeg, and his team managed to record squirrels' alarm calls. The researchers studied the sounds and then played them back to 60 wild squirrels, which the scientists approached individually with a video recorder to capture(抓拍）their responses. Some squirrels lifted their heads up and became alert(警惕的）. Creatures that were more frightened simply ran for their lives and dived into caves.
"In effect then, whistles that mix with chucks say 'there's an enemy of average threat that's here', and whistles without chucks say 'there's an enemy of seemingly average threat around here somewhere', while pure chirps say, 'I'm hiding here because there's an immediate danger. ' " Hare told. Discovery News.
Hare and some other researchers believe such sounds are part of an advanced language that develops just as all other communication systems.
Although squirrels risk their lives when they call out to warn others of threats, other squirrels might admire this behavior, thus increasing the caller’s social status, like humans who look up to heroes. Hare added that other animals, such as birds, probably understand at least some squirrel language, since they also may benefit from the alarm calls.
In fact, another Canadian study found that deep-voiced, black-capped chickadees have their own language too. According to certain research, there are a lot of tidings in chickadees' calls, such as directing fellows' activities, keeping in contact between mates, and raising alarms.
While chickadees and other birds are often welcomed into gardens by homeowners, squirrels are frequently viewed as pests(害兽）. Hare wishes a greater understanding of the complex social lives and communication systems of squirrels will provide “hope that humans will gain a greater appreciation and stop doing harm to these animals”.The text mainly talks about _______ .
| A．the ways for squirrels to escape from their enemies |
| B．the comparison between squirrels and chickadees |
| C．the calling for the protection of squirrels |
| D．the study on the language of squirrels |
If a squirrel is in a very dangerous situation, it would probably make ____.
| A．whistles with chucks | B．pure chirps |
| C．whistles without chucks | D．repeated chucks |
The underlined word “tidings” in paragraph 6 probably means ____.
| A．difficulties | B．noises |
| C．messages | D．languages |
What can be learned from this text?
| A．Squirrels communicate with each other as humans do. |
| B．Some squirrels understand the recorded alarm calls. |
| C．Other animals also well understand the language of squirrels. |
| D．Birds such as chickadees don’t have their own language. |
THIS was the year the Earth struck back.
Earthquakes, heat waves, floods, volcanoes, super typhoons, snow storms, landslides and droughts killed at least a quarter of a million people in 2010 – the deadliest year in more than a generation. More people were killed worldwide by natural disasters this year than have been killed in terrorism attacks in the past 40 years combined.
"It just seemed like it was back-to-back and it came in waves," said Craig Fugate, who heads the U.S. Federal Emergency Management Agency. It handled a record number of disasters in 2010.
And we have ourselves to blame most of the time, scientists and disaster experts say.
Even though many catastrophes have the ring of random chance, the hand of man made this a particularly deadly, costly, extreme and weird（古怪的） year for everything from wild weather to earthquakes.
Poor construction and development practices conspire to make earthquakes more deadly than they need be. More people live in poverty in vulnerable（脆弱的） buildings in crowded cities. That means that when the ground shakes, the river breaches, or the tropical cyclone hits, more people die.
Disasters from the Earth, such as earthquakes and volcanoes "are pretty much constant," said Andreas Schraft, vice president of catastrophic perils for the Geneva-based insurance giant Swiss Re. "All the change that's made is man-made."
The January earthquake that killed well more than 220,000 people in Haiti is a perfect example. Port-au-Prince has nearly three times as many people - many of them living in poverty - and more poorly built shanties than it did 25 years ago. So had the same quake hit in 1985 instead of 2010, total deaths would have probably been in the 80,000 range, said Richard Olson, director of disaster risk reduction at Florida International University.
In February, an earthquake that was more than 500 times stronger than the one that struck Haiti hit an area of Chile that was less populated, better constructed, and not as poor. Chile's bigger quake caused fewer than 1,000 deaths.
Climate scientists say Earth's climate also is changing, bringing extreme weather, such as heat waves and flooding.
In the summer, one weather system caused oppressive heat in Russia, while farther south it caused flooding in Pakistan that inundated 161,200 square kilometers, about the size of Wisconsin. That single heat-and-storm system killed almost 17,000 people, more people than all the worldwide airplane crashes in the past 15 years.
Scientists have calculated that the killer Russian heat wave—setting a national record of 43.9℃—would happen once every 100,000 years without global warming.What is responsible for the most human deaths in 2010?
| A．Natrual disasters. | B．Terrorist attacks. |
| C．Poor buildings. | D．Too rapid developrnent. |
According to Andreas Schraft, .
| A．earthquakes are happening more often because of human beings |
| B．earthquakes are causing more damage because of human beings |
| C．stronger houses should be built to limit storm damage |
| D．Port—au—Prince is now overpopulated |
The main point of the article is to
| A．list the natural disasters that occurred in 2010 |
| B．give the details of some natural disasters of 2010 |
| C．warn that more natural disasters are to strike |
| D．blame humanity for not helping those affected by the disasters |
Each time I see a balloon, my mind flies back to a memory of when I was a six-year-old girl. It was a rainy Sunday and my father had recently died. I asked my mom if Dad had gone to heaven. "Yes, honey. Of course." she said.
"Can we write him a letter?"
She paused, the longest pause of my short life, and answered, "Yes."
My heart jumped. "How? Does the mailman go there?" I asked.
"No, but I have an idea." Mom drove to a party store and returned with a red balloon. I asked her what it was for.
"Just wait, honey. You'll see." Mom told me to write my letter. Eagerly, I got my favorite pen, and poured out my six-year-old heart in the form of blue ink. I wrote about my day, what I learned at school, how Mom was doing, and even about what happened in a story I had read. For a few minutes it was as if Dad were still alive. I gave the letter to Mom. She read it over, and a smile crossed her face.
She made a hole in the corner of the letter where she looped (缠绕) the balloon string. We went outside and she gave me the balloon. It was still raining.
"Okay, on the count of three, let go. One, two, three."
The balloon, carrying my letter, darted upward against the rain. We watched until it was swallowed by the mass of clouds.
Later I realized, like the balloon, that Dad had never let his sickness get him down. He was strong. No matter what he suffered, he'd persevere, dart up, and finally transcend (超越) this cold world and his sick body. He rose into sky and became something beautiful. I watched until the balloon disappeared into the gray and white and I prayed that his strength was hereditar. I prayed to be a balloon.When the girl asked her mother if they could write to her father, her mother _________.
| A．felt it hard to answer | B．thought her a creative girl |
| C．believed it easy to do so | D．found it easy to lie |
When the girl was told that she could send a letter to her father, she _________.
| A．jumped with joy | B．became excited |
| C．started writing immediately | D．was worried that it couldn't be delivered |
In the eyes of the author, what was the rain like?
| A．An incurable disease. | B．An unforgettable memory. |
| C．The hard time her father had. | D．The failures her father experienced. |
What would be
the best title for the passage?
| A．An unforgettable experience | B．The strong red balloon |
| C．Fly to paradise | D．A great father |
A TAXI driver taught me a million dollar lesson in custome
r satisfaction and expectation. Inspiring speakers charge thousands of dollars to give his kind of training to corporate directors and staff. It cost me only a ＄12 taxi ride.
I had flown into Dallas just for the purpose of calling on a client. Time was important and my plan included a quick turn – around trip from and back to the airport. A clean taxi pulled up.
The driver rushed to open the passenger door for me and made sure I was comfortably seated before he closed the door. As be got in the driver’s seat, he mentioned that the neatly folded Wall Street Journal next to me for my use. He then showed me several tapes and asked me what type of music I would enjoy.
Well! I looked around for a 
“Candid Camera!” Wouldn’t you? I could not believe the service I was receiving! I took the opportunity to say, “Obviously you take great pride in you work. You must have a story to tell.”
“You bet,” he replied, “I used to be in Corporate America. But I got tired of thinking my best would never be good enough. I decided to find my right position in life, somewhere I could feel proud of being the best I could be.
I knew I would never be a rocket scientist, but I love driving cars, being of service and feeling like I have done a full day’s work and done it well. I evaluated my personal property and, I became a taxi driver!
One thing I know for sure, to be good in my business I jus have to meet the expectations of my passengers. But, to be GREAT in my business, I have to EXEED the customer’s expectations! I like the sound of being ‘great’ better than just being ‘average’. ”
Did I tip him big time? You bet!
The taxi driver taught me a great life lesson: Go an extra mile when providing any service to others. And there is no good or bad job you can make any job good.What lesson did the author learn from the taxi driver?
| A．How to make the best use of time. |
| B．How to do better in the service business. |
| C．How to turn an interest into your career. |
| D．How to become a motivational speaker. |
Why did the author look around for a “Candid Camera”?
| A．Because he was afraid he would be photographed in the cab. |
| B．Because he was worried what the driver could be up to. |
| C．Because he was amazed by the way the driver was treating him. |
| D．Because he wasn’t interested in the tapes offered by the driver |
It can be inferred from the story that .
| A．the taxi driver couldn’t accept just being average |
| B．the author was anxious to get back to meet a client |
| C．when the author waited for a taxi at the airport, he was not in a rush |
| D．the taxi driver loved to play his favorite music during rides |
According to the story, the taxi driver .
| A．was dissatisfied wit his present job |
B．was once often reward ed for being a model worker |
| C．enjoyed offering his customers more than they expected |
| D．was forced to become a taxi driver to support his family |
What is red but green, open but closed and old but new?
The answer is: London’s new double-decker（双层）buses.
Red double-deckers are a symbol of the city. Their status was sealed (确定) in 2008 when one bus made the longer-than-usual trip to Beijing to collect a special passenger: the Olympic Flame.
On November 11, a life-size model of the new bus was shown to the media. The Guardian reported that the new design shares some of the features of the much-missed double-decker Routemaster bus. The original Routemaster was introduced in 1956 but December 2005 saw the end of the old bus’s general service. It was because the bus was difficult for some passengers to use and not environmentally fr
iendly. But it can still be seen on two heritage routes in the city.
Its replacements —boxy, modern double—deckers—have failed to win Londoners’ affection.
London mayor Boris Johnson told the BBC that the new buses were “a combination of nostalgia（怀旧）and the latest technology”. “Standing on the back platform of this bus brings a sense of nostalgia but also shows the best part of the latest technology and design, making this bus fit for the 21st Century,” he said.
The new bus also returns to the driver—and—conductor model—a key feature of the original version. It will be quieter than the old type and have a platform offering passengers the traditional hop—on hop—off service.
The first five new buses will be seen on the roads by early 2012.Which of the following shows that red double—deckers are a symbol of London?
| A．They have a long history and are seen everywhere in London. |
| B．They have nothing in common with the traditional Routemaster bus. |
| C．One such bus went from London to Beijing to collect the Olympic Flame. |
| D．They carried British athletes from London to attend the Beijing Olympics. |
Which of the following is true of the original Routemaster?
| A．The bus came into use in the 1960s. |
| B．The bus was banned because it was harmful to the environment. |
| C．Passengers didn’t like the bus because it was slow. |
| D．Visitors to London cannot see such buses on the roads any more. |
According to London mayor Boris Johnson, the new Routemaster .
| A．has not been as well received as was expected |
| B．will be widely used in London in 2012 |
C．is the mo st environmentally friendly bus in the UK |
| D．combines the latest technology with key traditional features |
What is the characteristic of the new red double – deckers?
| A．The buses will make no noises. |
| B．The buses will have no conductors. |
C．They will be equipped with air – conditioning. |
| D．The bus platform will offer passengers a traditional service. |
A sunflower is a sunflower. A mobile phone is a mobile phone. But can you combine the two to do something for your local environment? As early as next year it may well be possible. When you have finished with your mobile phone you will be able to bury it in the garden or a plant pot and wait for it to flower.
A biodegradable (生物可降解的) mobile phone was, this month, introduced by scientists. It is hoped that the new type of phone will encourage consumers to recycle. Scientists have come up with a new material over the last five years. It looks like any other plastic, but overtime it can break down into the soil without giving out any poisonous chemicals. British researchers used the new material to develop a phone cover that contains a sunflower seed. When this cover turns into waste, it forms nitrates (硝酸盐). These feed the seed and help the flower grow. “We’ve only put sunflower seeds into the cover so far. But we are working with plant experts to find out which flowers would perform best. Maybe we could put roses in next time.” said one scientist.
As phone technology is developing so quickly people are constantly throwing their mobiles away. This means producers are under pressure to find ways of recycling them. Some 650 million mobile phones have been sold this year. Most of them will be thrown away within two years, adding plastic, heavy metal and chemical waste to the environment. A biodegradable cover can offer some relief for nature, according to the scientists. “The seed is released and the flower grows in the pot so you don’t have to concern yourself with the phone when you have finished using it,” said Kerry Kirwan, the leader of the research team.After you have finished using the new type of mobile phone, _______.
| A．the sunflower seed will come out and flower in the pot |
| B．the phone cover will break down very soon in the soil |
| C．it will be recycled by the producers |
| D．it can charge itself with electricity in a green way |
This type of research is done because ________.
| A．the technology of making phones is changing rapidly |
| B．too many waste mobile phones may lead to environmental problems |
| C．nobody has ever thought of recycling mobile phones |
| D．producing mobile phones uses a lot of energy |
We can infer from the story ________.
| A．the new type of mobile phones are already on the market |
| B．the new type of mobile phones will sell extremely well |
| C．the material of the new type of phones is harmful |
| D．other flowers may be used in the new type of mobile phones |
The best title of this passage is .
| A．Recycling our phones |
| B．The phones that flower |
| C．A new material for making phones |
| D．The harm of thrown-away phones |