Scientists have long understood the key role that oceans play in regulating the Earth’s climate. Oceans cover 70 percent of the globe and store a thousand times more heat than the atmosphere does. What’s newer is the understanding of how this key component of our climate system responds to global warming.
A brake on global warming — for now
One of oceans’most important climate functions is absorbing heat and carbon dioxide (CO2), one of the gases that cause global warming. Acting as a heat sponge (海绵), oceans have absorbed huge amounts of heat and CO2 in the last forty years.
Fujita explains that "oceans are saving us from faster climate change — they are a big flywheel that delays rapid overheating of the Earth, putting a brake on the climate system."
"That’s the good news," he adds. "The bad news is that oceans only slow the atmospheric warming. Once oceans come to balance with a greenhouse gas warmed earth, the extreme heat will remain in the atmosphere and things will get much hotter." But where and how oceans release this accumulated (积累的) heat is uncertain. And as oceans store heat, fragile underwater ecosystems are struggling.
The most recent scientific report from the Intergovernmental Panel on Climate Change (IPCC) also notes with concern that oceans are acidifying because of increased absorption of atmospheric CO2, and thus causing a threat for shell-forming species. Sharp increases in carbon dioxide levels will cause further acidification of oceans.
Currents distributing heat
Another important role oceans play is that of distributor. Oceans deliver heat and life-sustaining nutrients around the globe. Just as blood vessels bring oxygen and nutrients to cells in the human body, oceans’ currents carry oxygen, nutrients and heat throughout the Earth. Oceans distribute 25 percent to 50 percent of the energy the planet receives from the sun. For example, the Gulf Stream carries heat across the Atlantic. This warm current gives northwestern Europe a milder climate than it would normally have so far north. A change to oceans’ circulation (循环) patterns could throw Europe into a colder period, even as the rest of world experiences warmer temperatures.We can infer from the passage that .
| A．oceans cause global warming |
| B．oceans stop global warming |
| C．oceans release nutrients and heat |
| D．ocean ecosystems face more dangers |
From the passage we can learn that oceans’ currents .
| A．produce oxygen and nutrients everywhere |
| B．absorb 25% to 50% of the energy from the sun |
| C．distribute heat and nutrients around the globe |
| D．change oceans’ circulation patterns |
Which of the following is NOT the result of oceans absorbing heat and carbon dioxide?
| A．It causes further acidification. |
| B．It affects shell-forming species. |
| C．It makes the atmosphere hotter. |
| D．It regulates the Earth’s climate. |
This passage mainly talks about .
| A．the roles of oceans | B．global warming |
| C．ocean currents | D．carbon dioxide |
As computers become more and more popular in China, Chinese are increasingly relying on computer keyboards to input Chinese characters. But if they use the computer too much, they may end up forgetting the exact strokes(笔画) of each Chinese character when writing on paper. Experts suggest people, especially students, write by hand more.
Do you write by hand more or type more? In Beijing, students start using a computer as early as primary school. And computer dependence is more widespread among university students. Almost all their assignments and essays are typed on a computer. All the students interviewed say they usually use computers.
It's faster and easier to correct the mistakes if using a computer. And that’s why computers are being used more and more often in modern education. But when people are taking stock in computers increasingly, problems appear.
“When I'm writing with a pen, I find I often can’t remember how to write a character, though I feel I'm familiar with it.”
“I'm not in the mood to write when faced with a pen and paper.”
Many students don’t feel this is something to worry about. Now that it's more convenient and efficient to type on a computer, why bother to write by hand?
Many educators think differently. Shi Liwei , the headmaster of a famous primary school in the capital said, “Chinese characters enjoy both practical and aesthetic (审美的) value. But those characters typed with computer keyboards only maintain their practical value. All the artistic beauty of the characters is lost. Besides, handwriting contains the writer's emotion. Through one's handwriting, people can learn one's thinking and personality. Beautiful writing will give people a better first impression.”
To encourage students to write more, many primary schools in Beijing have made writing classes compulsory and in universities, some professors are asking students to turn in their homework and essays written by hand. Which of the following can be the best title for the passage?
| A．The Importance of Typing |
| B．Practical and Aesthetic Value of Chinese Characters |
| C．Writing by Computer Will Replace Writing by Hand |
| D．To Type or to Write by Hand |
The students interviewed prefer to type on a computer mainly because_______.
| A．they can correct the mistakes quickly and conveniently |
| B．they are usually asked to e-mail their homework and essays |
| C．they find it hard to remember how to write a character |
| D．computers have become a trend and fashion in China |
Which of the following statements is NOT true about advantages of handwriting?
| A．Handwriting contains the writer's emotion. |
| B．Handwriting can impress people well and build their self-confidence. |
| C．The writer's thinking and personality are shown in his or her handwriting. |
| D．Chinese characters enjoy both practical and aesthetic value. |
The underlined phrase in Paragraph 3 probably means________.
| A．getting bored with | B．becoming crazy about |
| C．becoming dependent on | D．getting curious about |
Use your American Express Card to enjoy one-day visit at four of America’s greatest museums. Note the participating museums, and their exciting special exhibitions that you will not want to miss, listed below.
Boston
Isabella Stewart Gardner Museum
Chairs
February 11-May 8, 2012
Italian furniture expert Fausto Calderai and Indian photographer Dayanita Singh present an exhibition of chairs from the museum’s collection and “chair photographs” from around the world presented in a Venetian-style hall housing world-famous masterpieces.
For more information：www. gardnermuseum. org
New York
The Noguchi Museum
Noguehi and Graham
December 1, 2011-May 1, 2012
Noguchi’s long-term collaboration（协作） with dancer Martha Graham is regarded by many as a high point in the history of both modern dance and art. The exhibition highlights nine of the sets created through this collaboration.
For more information：www. noguchi. org
Philadelphia
Pennsylvania Academy of the Fine Arts
In Full View：American Painting（1720—2012）
January 11--April 10, 2012
Founded in 1805, the Pennsylvania Academy has been home to America’s artists for more than 200 years. The Academy collects and exhibits the works of famous American artists, and is well-known for training fine artists. 2012 at the Academy begins with the largest exhibition of Academy’s distinguished American collection in the institution’s history.
For more information：www. pafa. org
Seattle
Seattle Museum of Glass
Murano：Glass from the Olnick Spanu Collection
Through November 7, 2011
This exhibition includes over 200 pieces of beautiful glass from Murano, the island of glassblowers near Venice, Italy. Watch live glass-blowing shows in the Hot Shop and see other modern glass exhibitions.
For more information：www. museumofglass. orgWhich of the following websites offers information about the furniture show?
| A．www. pafa. org | B．www. museumofglass. org |
| C．www. noguchi. org | D．www. gardnermuseum. Org |
We learn from the text that Martha Graham is ___________.
| A．a dancer | B．a glassblower | C．a painter | D．a photographer |
If you want to know the history of American painting, you may visit ___________.
| A．the Noguchi Museum | B．Seattle Museum of Glass |
| C．Isabella Stewart Gardner Museum | D．Pennsylvania Academy of the Fine Arts |
Plants have family values, too; it seems, with new research suggesting they can recognize close relatives in order to work together.
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking recognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life，” Dudley said.
The study found plants from the same species of beach-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their families.
Sea rocket, a North American species, showed stronger and healthier root growth when planted in pots with strangers than when raised with relatives from the same maternal(母系的) family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said.
Kin selection also applies to competition, because if family members compete less with each other, the group will do better overall. “Everywhere you look, plants are growing right up next to other plants，” Dudley said，“ Usually it’s a case of each plant for itself. But sometimes those plants are related, and there are benefits to not wasting resources on being competitive, and there is not really a cost to not being competitive as long as your neighbor is also not being competitive.”
Learning and memory appear to be important for kin recognition in animals, but this isn’t an option for plants, she noted.
Some researchers speculate(猜测) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.What’s the main idea of the message?
| A．Studies find plants can recognize, communicate with relatives. |
| B．Kin selection is important for plants. |
| C．Animals can recognize and memorize their relatives. |
| D．Competition asks plants to recognize their relatives. |
Which of the following is NOT right about animals’ social skill?
| A．Animals can recognize and memorize their relatives. |
| B．Animals’ social skill is to cooperate and share resources. |
| C．Animals’ social skill can recognize close relatives in order to work together. |
| D．Animals’ social skill is no use at all. |
Plants’ kin selection is to ________.
| A．grow well | B．compete with other kinds of plants |
| C．strengthen the relationship among siblings | D．find which one is the best |
From the passage，we learn that ________.
| A．sea rocket is a South American species |
| B．sea rocket grows aggressively alongside unrelated neighbors |
| C．sea rocket grows aggressively alongside its siblings |
| D．sea rocket is a kind of bush without flowers |
How can the plants communicate with each other according to experts’ suppose?
| A．Plants communicate by using tiny chemical signatures specific to each plant’s family. |
| B．Plants communicate with each other through their roots. |
| C．Plants communicate with each other by their leaves. |
| D．Plants communicate with each other with their flowers. |
A new generation addiction is quickly spreading all over the world. Weboholism, a twentieth century disease, affects people from different ages. They surf the net, use e-mail and speak in chat rooms. They spend many hours on the computer, and it becomes a compulsive habit. They cannot stop, and it affects their lives.
Ten years ago, no one thought that using computers could become a compulsive behavior that could affect the social and physical life of computer users. This obsessive behavior has affected teenagers and college students. They are likely to log on computers and spend long hours at different websites.
They become hooked on computers and gradually their social and school life is affected by this situation. They spend all free time surfing and don't concentrate on homework, so this addiction influences their grades and success at schools. Because they can find everything on the websites, they hang out there. Moreover, this addiction to websites influences their social life.
They spend more time in front of computers than with their friends. The relation with their friends changes. The virtual life becomes more important than their real life. They have a new language that they speak in the chat rooms and it causes cultural changes in society.
Because of the change in their behavior, they begin to isolate themselves from the society and live with their virtual friends. They share their emotions and feelings with friends who they have never met in their life. Although they feel confident on the computer, they are not confident with real life friends they have known all their life. It is a problem for the future. This addictive behavior is beginning to affect the whole world.The passage is about________.
| A．the cause of weboholism | B．the advantage of weboholism |
| C．the popularity of weboholism | D．the influence of weboholism |
The underlined word "obsessive" in the second paragraph most probably means
| A．attractive | B．addictive | C．professional | D．potential |
We can learn from the passage that________.
| A．weboholism has the greatest effect on teenagers |
| B．teenagers can hardly balance real and virtual life |
| C．people are addicted to games on the internet |
| D．virtual life is more vivid and attractive anyway |
Which of the following is NOT true of weboholism?
| A．It contributes to the development of the web. |
| B．The chat room language may change social culture. |
| C．The problem will have a negative influence on our future. |
| D．People addicted to the web often become inactive in real life. |
The author's attitude towards weboholism is that of being ______.
| A．objective | B．positive | C．opposed | D．acceptable |
The Americans have been voted the world’s “funniest nationality” ---the one “best at making people laugh” ---in a global poll (民意调查), which also names the Germans the “least funny” nationality and the British “not as funny as they think”.
30,000 people across 15 countries were asked to name both the “funniest” and “least funny” nationality in a poll conducted by Badoo.com, the world’s largest social network for meeting new people, with 119 million users worldwide.
The Americans were voted the funniest nationality, ahead of the Spanish --- the funniest Europeans --- in second, Italians in third and British in seventh.
The voting for the “least funny” nationality confirmed the view of America’s Mark Twain that “a German joke is no laughing matter”. The Germans won, ahead of the Russians and Turks. The stereotype of German humourlessness is believed to derive from their reputation for efficiency, punctuality and rationality(理性). Examples of German jokes include: “Yesterday, I met my friend Horst at the hospital. He’d swallowed a sponge. He says it doesn’t hurt but he’s always thirsty.”
“When we meet someone new, one of the first things we notice is whether they make us laugh”, says Lloyd Price, Badoo’s Marketing Director. “America is a worthy poll winner”, says Price. “It’s the world’s only comedy superpower.”
The British pride themselves on their humour but learn from the poll that they’re not as funny as they think. They placed just seventh of 15 --- behind the Brazilians, French and Mexicans.According to the poll, which is the right order from the funniest nationality to the least funny one?
| A．Spanish, Americans, French, Mexicans, British |
| B．Americans, Spanish, Italians, Brazilians, French |
| C．British, Mexicans, Brazilians, Spanish, Americans |
| D．Italians, French, British, Mexicans, Brazilians |
Which of the following statements is TRUE?
| A．The poll was conducted among 119 million people by Badoo. com. |
| B．Spanish are the funniest nationality in Europe. |
| C．That Germans are named the “least funny” nationality is because of Mark Twain. |
| D．Some people think that British are funny while others think the opposite in the poll. |
Which can be the substitute of the word “derive” in the fourth paragraph?
| A．acquire | B．suffer | C．translate | D．accomplish |
What is the author’s purpose of telling us a German joke?
| A．The author wants to show that Germans are good at telling jokes. |
| B．The author wants to confirm what Mark Twain said. |
| C．The author wants to prove that Germans are not funny at all. |
| D．The author just wants to say that swallowing a sponge is no harm. |
It seems that the best title for this passage is ______.
| A．The Funniest Nationality |
| B．A Global Poll Conducted by Badoo.Com |
| C．Americans Won the Funniest Nationality |
| D．Americans Voted “Funniest Nation”, Germans “Least Funny” |