The hole in the Earth's ozone layer (臭氧层) has until now protected Antarctica from the worst effects of global warming. But scientists have warned that as the hole closes up in the next few decades, temperatures on the continent could rise by around 3oC on average, with melting ice contributing to a global sea level increase of up to 1.4 metres.
In the past decades the western Antarctic has seen rapid ice loss as the world has warmed, but the other parts of the continent have, paradoxically, been cooling, resulting in a 10% increase in ice in the seas around the region. This is because the hole in the ozone layer has increased cold winds in Antarctica, making much of the continent surface colder than usual.
But now that the gasses that cause the ozone hole have been banned, scientists expect the hole to repair itself within the next 50 to 60 years. By then the cooling effect will have faded out and the Antarctic will face the full impact of global warming. This means an increase in average air temperatures of around 3OC and a reduction in sea ice by around a third.
The biggest threat to the continent comes from warming seas. Robert Johnson, a scientist who monitors Antarctica ice sheets, said, "The ice sheets in Antarctica are hundreds of metres thick. But once warm ocean waters start flowing underneath, the ice will begin thinning and could break up very quickly. "Thinning ice sheets cause ice to break away from the continent and to melt even faster. Escaping ice from western Antarctica has already resulted in a 10% rise in global sea level in recent decades.
Johnson believes that international action to reduce global warming is required immediately or it may be too late. "Everything is connected - Antarctica may be a long way away but it is an important part of the Earth's system," said Johnson. "It contains 90% of the world's ice, 70% of the world's fresh water and that is enough, if it melts completely, to raise sea levels by 63 metres."
Even in a worse-case situation scientists don't expect the ice to entirely disappear, but predict that, because of the melting ice sheets, average sea level rise will be around 1.4 metres higher by the end of the century.The underlined word "paradoxically" (in Paragraph 2) most probably means "_ _".
| A．rapidly | B．approximately | C．contradictorily | D．apparently |
What is the effect of the hole in the ozone layer on Antarctica?
| A．It is making much of the continent colder. |
| B．It is causing the ice to melt faster. |
| C．It is making the effects of global warming in the region worse. |
| D．It is reducing the amount of water in Antarctica. |
What do scientists think is the biggest danger facing Antarctica?
| A．Rising sea levels. | B．Warming sea water temperature. |
| C．Water pollution. | D．Growing ice sheets. |
Which of the following is true according to the passage?
| A．Antarctica contains most of the world's fresh water. |
| B．The average temperature has increased by 3 degree centigrade in recent decades. |
| C．Antarctica is currently experiencing the full effects of global warming. |
| D．Ten percent of Antarctica's ice has already been lost. |
The best title for the passage is ___ ___ .
| A．Our planet in danger | B．Antarctica melting away |
| C．Action plan to save Antarctica | D．Let's save the ozone layer |
Bicycle lights may not exactly be a problem that needs solving, but the following can be said about most of them ---- they’re easily stolen if left on an unattended bike. People riding at dusk can forget to turn them on, and those same people can forget to turn them off when they reach their destination. Well, the makers of the Blink/ Steady Bike Light have set out to address all of those shortcomings.
The waterproof(防水的) Blink/ Steady is so far only available as a tail light, although a head light is on the way. It’s fixed onto the bike’s seat post. A built- in photosensor(感光器) tells when it’s become dark enough for the light to be required, and allows it to come on once you begin the riding. According to the producers, it isn’t fooled by things such as headlights or streetlights. The light also contains an accelerometer, also known as a motion sensor, which can tell when the bike is in motion.
Between the two sensors, this means the light will come on only once it’s dark enough, and the bike is moving. Even when stopped at red lights, the small movements of the rider will reportedly be enough to keep the light activated---- it’ll go out after 30 seconds of complete inactivity. While this does mean that the two sensors are continuously powered up, they go into a very low---- power sleep pattern when the bike is sitting, unused.
Light is provided by two5- watt LEDs, seeable over a range of 180 degrees. And power comes from two AAA batteries, which provided up to 200 hours of continuous run time. The designers and engineers behind the Blink/ Steady are now raising money for its commercial production. About US $95 will get you one if they become available.The first paragraph is mainly to mean that______.
| A．bicycle lights are worth a research |
| B．bicycle lights are not a problem at all |
| C．bicycle lights are easy to deal with |
| D．bicycle lights are difficult to turn off |
According to the text, the Blink/Steady Bike Light is sensitive to______.
| A．the weather | B．streetlights | C．headlights | D．natural light |
Why is there an accelerometer in the Blink/ Steady Bike Light?
| A．To protect the bike against water. |
| B．To tell if the bike is moving. |
| C．To make the bike easy to ride. |
| D．To judge the speed of the bike. |
What can be inferred about the Blink/ Steady Bike Light?
| A．It will be turned off immediately if the bike stops. |
| B．The traffic lights have no effect on the light. |
| C．It won’t use any power if the bike is unused. |
| D．It must meet two requirements if it comes on. |
Poor weather. Technical difficulties. These are some of the typical causes of cancelled trains and planes. But sometimes, the excuse can be a lot more trivial.
Just recently, passengers waiting for a train to Peterborough heard the following announcement, “For reasons beyond our control, we regret to inform passengers that the 13:46 Train to Peterborough has been cancelled. The next train will be arriving on Platform in approximately 36 minutes.”
Oh, well, another delayed train, thought most passengers. But a couple of them decided to enquire further. Incredibly, they were informed that the real reason for the non-arrival of the train was that the driver refused to do his job because his seat was wet.
“A wet seat? That’s got to be a joke,” said one passenger angrily. “I wouldn’t normally complain if the train is just a bit delayed, but this was unbelievable, ” he added. “What really made me angry is that this driver refused to get in the train,” said another passenger. “He probably went off for a cup of tea after that!” she added.
A spokesperson for the rail company apologized for the incident, but said the driver couldn’t sit on the damp seat, and wouldn’t be able to drive the train standing up. The spokesperson went on to explain that the seat had become wet after water entered through an open window when the train was being cleaned in a “train wash”
In another transport-related incident, a flight from Chicago to Frankfurt made an emergency landing in Canada after the pilot spilled his coffee. Apparently, the spilt liquid caused the plane’s radio to send out “transponder code 7500”, which is used to inform ground control that there’s been a hi-jacking (劫机). After landing in Toronto, the 255 passengers crew members were put up in a hotel for the night, then flown on to Frankfurt the following afternoon. “What a disgusting trip!” said one tired passenger after the painful experience had ended.
So, does your job have the potential to cause such disorder?Why did the driver of the train refused to do his job?
| A．His seat was damp. | B．His pay was low |
| C．The weather was terrible | D．His coffee was spilled |
The underlined word “trivial” in Paragraph 1 means “____”.
| A．damp | B．unimportant | C．emergent | D．convincing |
The flight made an emergency landing in Canada because “_______”.
| A．the plane was hijacked |
| B．the plane engines went wrong |
| C．the pilot ran out of coffee |
| D．the plane’s radio sent out a wrong signal |
Which of the following is the best title of the passage?
| A．Wet seat, Canceled Train! |
| B．Spilled Coffee, Emergency Landing! |
| C．Small Incident, Big Disruptions! |
| D．Innocent Driver, Angry Passengers! |
ANIMALS have always been used to represent certain human characteristics. Countries also use animals as symbols. From eagles to lions, many countries use an animal to show its national spirit and character.
The image of an eagle is on the US President’s flag, and on the one-dollar bill. The bald eagle is a large, powerful, brown bird with a white head and tail. The term “bald” does not mean that this bird lacks feathers. Instead, it comes from the old word piebald, that menas, “marked with white”.
The US declared that the eagle was its national bird in 1782. It was chosen because of “its long life, great strength, and noble looks”.
A few eagles have even become American heroes. An eagle named “Old Abe”, the mascot of a Wisconsin troop of soldiers during the Civil War, traveled 14,000 miles with its men. He was often shot at by the enemy, but survived 42 battles.
But, one of the Founding Fathers, Benjamin Franklin didn’t agree with the choice. “The bald eagle … is a bird of bad moral character, like those among men who live by robbing, he is generally poor, and often very messy,” he argued. Franklin wanted the turkey as the country’s national bird.
If Americans chose their national symbol deliberately, the symbol of England arose out of history.
King Herry Ⅰ(1068-1135) was a brave warrior but also wise. His appreciation for the rule of law earned him the nickname the Lion of Justice. He was the first English King to use a lion as a royal symbol, which is popularly known as the “king of the jungle”. By the year Richard Ⅰ, known as “The Lionheart” for his bravery, came to the throne in 1189, the famous Three Lions badge had been formed. Now it can be seen on the shirts of England’s sports teams.
Although people might not think of lions when they think of England, everyone knows about the Australian kangaroo. Legend has it that the kangaroo gets its name from an early meeting between local aborigines and white settlers. When asked by the Europeans what these strange-looking animals were, a native replied “kangaroo”, meaning “I don’t understand you.”
The kangaroo is an individualistic animal. Although it does gather in groups, the kangaroo is not a herd animal. If a group is attacked, individuals run off in different directions. Australians think the kangaroo represents positive values, such as individual responsibility and pride.The general idea of this passage should probably be __________ .
| A．animals are friends of human beings |
| B．nearly all the countries have an animal as their national animal |
| C．animals’ good values are always used to show a country’s national spirit and character |
| D．certain human characteristics are the same as some animals, so some countries love animals |
Which is NOT true about the animal of the “bald eagle”?
A. It was Benjamin Franklin who made the bald eagle as the national animal of the USA.
B. The term “bald” means “marked with white”.
C. The bald eagle can show American national spirit and character.
D. “Old Abe” was even an American hero.The reason why the lion was made as the national animal of the United Kingdom was that ______ .
| A．it could always be used to represent certain human characteristics of England |
| B．the Kings of England loved lions |
| C．there are many lions in England |
| D．lions are “king of the jungle” |
What good values can the kangaroo show as national spirits?
| A．Group. | B．Respect of others. |
| C．Not understanding | D．Positive values. |
I remember the first time that I was extremely happy, I was about 8 years old when for the first time, there was a computer in the classroom. I remember that my teacher allowed each student to take turns to play various educational games on the computer. One day, I found the source code for one of these games. Without knowing or being taught any programming language, I was able to figure out some of the BASIC code. I just gave myself a limitless number of lives in the game, so I could continue playing it forever. This was also my first introduction to algebra, and I didn’t even know it at the time. This was a decisive moment in my life. I was quite excited because of what I was learning and what I was able to do. As a result, I was enthusiastic for the rest of my life about self-learning and computers, and I was quite happy doing them too.
I’ve noticed that people who are truly content with life are enthusiastic about what they do. This enthusiasm, along with good health, is the key to being happy. It also leads to self-confidence and content in life too. It may also lead to success, wealth and achievements.
Success, wealth or achievements can also bring some people happiness, yet I know plenty of rich people who are unhappy. I know many people with successful businesses that are not happy with what they are doing. I know people who continuously buy themselves new toys, such as cars, computers, and televisions, yet never seem content for too long. Please remember, happiness is the journey of life, not the destination.What can we know from Paragraph 1?
| A．The author has a great talent for algebra. |
| B．Creative thinking is necessary for every child. |
| C．The BASIC code of the computer is not difficult. |
| D．The author’s experience in his childhood changed his life. |
The author wants to tell us through the first paragraph that____.
| A．interest is the best teacher |
| B．children are the hope of the future |
| C．young people are fearless |
| D．where there’s a will , there’s a way |
What is the secret of happiness in the author’s opinion?
| A．Success and wealth. |
| B．Gifts and self-confidence. |
| C．Enthusiasm and good health. |
| D．Knowledge and achievements. |
We can infer from the last paragraph that ______.
| A．rich people generally feel unhappy |
| B．wealth can’t bring people any happiness |
| C．one will feel unhappy once he has gained all the things he wants |
| D．being enthusiastic about what you are doing is more important than wealth |
Whether in the workplace or on the football field, effective teamwork can produce amazing results. However, working successfully as a team is not as easy as it may seem. Effective teamwork certainly does not just happen automatically; it takes a great deal of hard work and compromise. There are a number of factors that must be in place to make a good team.
Effective leadership is one of the most important components of good teamwork. The team’s leader should possess the skills to create and preserve a positive working environment and motivate and inspire the team members to take a positive approach to work and be highly committed. An effective team leader will promote a high level of spirit and make them feel supported and valued.
Communication is a vital factor of all interpersonal relationship and especially that of a team. Team members must be able to articulate their feelings, express plans and goals, share ideas and see each other’s opinions.
Conflicts will arise no matter how well a team functions together. The best way to deal with conflicts is to have some organized methods of handling conflicts. Team members should be able to voice their concerns without fear of offending others. Instead of avoiding conflict issues, a hands-on approach that settles them quickly is much better. It is often advised that the team leader sit with the conflicting parties and help work out their differences without taking sides and trying to remain objective if possible.
The team leader must set a good example to create good teamwork. In order to keep team members positive and committed and motivated, the team leader herself / himself needs to show these qualities. The team turns to the leader for support and guidance. So any negative words or behaviors on the leader’s part can be disastrous.+X+K]
Regardless of what type of work you are in, knowing how to effectively work on and with a team is going to be extremely important to your success and that of your team.Effective leadership is important partly because _________.
| A．it helps a leader to develop lots of skills |
| B．it makes a leader feel supported and valued |
| C．it creates a positive working environment |
| D．it depends on interpersonal relationship of a team |
The underlined word “articulate” probably means _________.
| A．hide | B．feel | C．express | D．plan |
When conflicts arise among team members, the team leader should ________.
| A．worry about the team members | B．ignore the team members’ voices |
| C．try to avoid conflict issues | D．work out their differences |
To become a good team leader, you have to __________.
| A．be positive and committed | B．set up a good team |
| C．look for support from the team | D．avoid natural disasters |
Which is the best title for the passage?
| A．Football And Teamwork | B．What Makes Effective Teamwork |
| C．Handle Conflict In A Team | D．Communication And Teamwork |