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 |
Why play games? Because they are fun, and a 1ot more besides. Following the rules…planning your next move...acting as a team member…these are all “game” ideas that you will come across throughout your life.
Think about some of the games you played as a young child, such as rope-jumping and hide-and-seek. Such games are entertaining and fun. But perhaps more importantly, they translate life into exciting dramas that teach children some of the basic rules they will be expected to follow the rest of their lives, such as taking turns and cooperating (合作) .
Many children’s games have a practical side. Children around the world play games that prepare them for work they will do as grown-ups. For instance, some Saudi Arabian children play a game called bones, which sharpens the hand-eye coordination（协调）needed in hunting.
Many sports encourage national or local pride. The most famous games of all, the Olympic Games, bring athletes from around the world together to take part in friendly competition. People who watch the event wave flags, knowing that a gold medal is a win for an entire country, not just the athlete who earned it. For countries experiencing natural disasters or war, an Olympic win can mean so much.
Sports are also an event that unites people. Soccer is the most popular sport in the world. People on all continents play it—some for fun and some for a living. Nicolette Iribarne, a Californian soccer player, has discovered a way to spread hope through soccer. He created a foundation(基金会) to provide poor children with not only soccer balls but also a promising future.
Next time you play your favorite game or sport, think about why you enjoy it, what skills are needed, and whether these skills will help you in other aspects of your life.Through playing hide-and-seek, children are expected to learn to ________.
| A．be a team leader | B．predict possible danger | C．act as a grown-up | D．obey the basic rules |
The underlined part in Paragraph 2 most probably means that games can________.
| A．describe life in an exciting way |
| B．turn real-life experiences into a play |
| C．change people’s views of sporting event s |
| D．make learning life skills more interesting |
According to the passage, why is winning Olympic medals so encouraging?
| A．It proves the exceptional skills of the winners. |
| B．It inspires people’s deep love for the country. |
| C．It helps the country out of natural disasters. |
| D．It earns the winners fame and fortune. |
Iribarne’s goal of forming the foundation is to _______.
| A．give poor kids a chance for a better life |
| B．bring fun to poor kids |
| C．provide soccer balls for children |
| D．appeal to soccer players to help poor kids |
What can be inferred from the passage?
| A．Sports can get all athletes together. |
| B．Games benefit people all their lives. |
| C．People are advised to play games for fun. |
| D．Sports increase a country’s competitiveness. |
Online Communication
In an age when technology moves faster than most can keep up with, a small group of people still remain in the time of old-fashioned letter. Frankly speaking, I was once certain that traditional letters could never be replaced by other means of communication.
But a story about online communication changed my mind.
An old man, who suffered a lot from Parkinson’s disease, was not able to talk clearly and could hardly write his name. Living totally alone, he managed to keep in touch with nearly all the members of his family. How did he achieve this? He clicked out words on his computer keyboard.
I, therefore, managed to get an E-mail box as soon as the opportunity came. My life changed. E-mail, and all online communication, is something truly different. It has capabilities（能力） that few other products can match.
E-mail is convenient. It takes less time with its fast speed and 24-hour connection. The slow postal service is no match. If you wouldn’t want to have a face-to-face talk with your manager, you might talk with him through E-mail even if you are in the same office.
Naming all the good things about online communication is not easy. But wait. E-mail can be inconvenient. It can waste time and energy. Just think what may happen when you take a short vacation and return to find your e-mail box filled with 200 unread messages. You could easily spend half a day clearing junk ads.
Then, online communication will keep us staying at our computer while it connects us to distant strangers. Once we throw ourselves into the machine, we may forget the human touches we once held so dear. I’m sure there is and always will be a place for the old-fashioned letter, phone call, and face-to-face meeting… even in the world of modern communication.
As I listen to the sound of the modem(调制解调器), I was excited at stepping out to the outside world but, at the same time, I sensed a loss of control over something valuable in my personal life.What is the most probable meaning of the underlined word “junk” in paragraph6?
| A．old and useless | B．New and useful | C．Short but valuable | D．Long but clear |
What does the writer think of online communication?
| A．It should replace old-fashioned letters completely. |
| B．It is perfect and always does good to you. |
| C．It is extremely useful and convenient, but it may be inconvenient or even harmful. |
| D．It does more harm than good. |
What caused the writer to become interested in E-mail and online communication?
| A．The sound of the modem. | B．His own illness. |
| C．The changing of his life. | D．A sick old man’s experience. |
According to the writer, traditional means of communication will never disappear because ________.
| A．they are convenient and popular though they are slow |
| B．they help to keep the friendly relationship between people |
| C．most people cannot keep up with the development of technology |
| D．modern means of communication does too much harm |
How did the sick old man keep in touch with his family members?
| A．With the help of his computer. | B．By writing letters with his pen. |
| C．By making telephone calls. | D．By visiting them regularly. |
Homestay provides English language students with the opportunity to speak English outside the classroom and the experience of being part of a British home.
What to Expect
The host will provide accommodation（住宿） and meals. Rooms will be cleaned and bedcovers changed at least once a week. You will be given the house key and the host is there to offer help and advice as well as to take an interest in your physical and mental health.
Accommodation Zones
Homestays are located in London mainly in Zones2，3 and 4 of the transport system. Most hosts do not live in the town centre as much of central London is commercial and not residential(居住的). Zones 3 and 4 often offer larger accommodation in a less crowed area. It is very convenient to travel in London by Underground.
Meal Plans Available
♢ Continental Breakfast♢ Breakfast and Dinner ♢ Breakfast, Packed Lunch and Dinner
It’s important to note that few English families still provide a traditional cooked breakfast. Your accommodation includes Continental Breakfast which normally consists of fruit juice, cereal（谷物类食品），bread and tea or coffee. Cheese, fruit and cold meat are not normally part of a Continental Breakfast in England. Dinners usually consist of meat or fish with vegetables followed by dessert, fruit and coffee.
Friends
If you wish to invite a friend over to visit. you must first ask your host’s permission. You have no right to entertain friends in a family home as some families feel it is an invasion of their privacy.
Self-Catering Accommodation in Private Homes
Accommodation on a room-only basis includes shared kitchen and bathroom facilities and often a main living room. This kind of accommodation offers an independent lifestyle and is more suitable for the long-stay student. However, it does not provide the same family atmosphere as an ordinary homestay and may not benefit those who need to practise English at home quite as much.Which of the following will the host provide?
| A．Room cleaning. | B．Medical care. | C．Free transport. | D．Physical training. |
The passage is probably written for
| A．hosts willing to receive foreign students |
| B．foreigners hoping to build British culture |
| C．English learners applying to live in English homes |
| D．travellers planning to visit families in London |
According to the passage. What does continental Breakfast include?
| A．Dessert and coffee. | B．Fruit and vegetables. |
| C．Bread and fruit juice. | D．Cereal and cold meat. |
What can be inferred from Paragraph 3?
| A．Zone 4 is more crowded than Zone 2. |
| B．The business centre of London is in Zone 1. |
| C．Hosts dislike travelling to the city centre. |
| D．Accommodation in the city centre is not provided. |
Why do some people choose self-catering accommodation?
| A．To experience a warmer family atmosphere. |
| B．To enrich their knowledge of English. |
| C．To entertain friends as they like. |
| D．To enjoy much more freedom. |
I learned how our attitudes made a big difference in our everyday lives from my friend Mary.
She doesn’t have any pets. I happened to see her outside on a -30 degree morning walking a dog. I felt sorry for Mary, out there walking a dog that’s not hers in such cold weather. I thought maybe she was saying to herself, “Yeah, this is why I don’t have any pets! I hate walking dogs.”
Later that day I saw Mary and said, “I saw you out there walking a dog this morning. Are you unhappy because you had to walk it on such a cold day?” To my surprise, she said that she enjoyed getting out there and walking the dog and that she got good exercise because of the dog. She also said she had talked to her brother, the dog’s owner, who was on holiday in Orlando, Florida with his family. He said his children were enjoying Disney World and the resorts (胜地). His four-year-old son had breakfast with Mickey Mouse and said it was the best day in his life. Mary said, “If I can help my brother and his family have a wonderful time relaxing for a week, knowing that their pet is being loved and cared for, what more could I ask for?” She added, “It’s worth it for me to make the sacrifice (牺牲) so that they can go and have fun.”
I learned a lesson from Mary. What do we know about Mary?
| A．She liked exercising outside before that day. |
| B．In fact she likes taking care of dogs very much. |
| C．She likes helping others. |
| D．She was sorry for not going on holiday with her brother. |
Why did the author feel sorry for Mary?
| A．It was a cold morning. |
| B．He thought Mary was suffering because of others. |
| C．Mary didn’t have any pets. |
| D．He found Mary was unhappy to walk the dog. |
Mary’s brother and his family could have a wonderful holiday because __________.
| A．the children could have breakfast with Mickey Mouse |
| B．the children enjoyed Disney World and the resorts |
| C．Mary did not go with them |
| D．Mary looked after their dog |
What lesson did the author learn from Mary?
| A．Traveling is fun, and walking dogs is also fun. |
| B．Walking dogs will make you feel warm. |
| C．Helping others is also a kind of enjoyment. |
| D．Walking dogs is also a kind of exercise. |
What can we infer from the passage?
| A．The author mistook Mary that morning. |
| B．Mary would raise a dog after helping her brother. |
| C．Mary made a lot of sacrifices for her brother. |
| D．Mary disliked raising any pets. |
When I was seven, my parents gave me a doll, a doll’s house and a book. The Arabian Nights, came wrapped in red paper. I was just ready to read when my mother walked into my room．
“Isn’t your doll just beautiful?” my mother asked. I looked at the doll, with fair hair in a pink dress----I’ll have to call her “she” because I never gave her a name. I folded my lips and raised my eyebrows, not really knowing how to let my mother down easily.
“This doll is different.” My mother explained, trying to talk me into playing with it.
Thinking the doll needed love, I hugged her tightly for a long time. Useless, I said to myself. Finally, I decided to play with the doll’s house. But since rearranging the tiny furniture seemed to be the only active possible, I lost interest. I caught sight again of the third of my gifts The Arabian Nights, and I began to read it. From that moment, the book was my constant companion.
Every day I climbed our garden tree, nestled among its branches, I read the stories in The Arabian Nights to my heart’s content. My mother became concerned as she noticed I wasn’t playing with either the doll or the little house. She insisted that I take the doll up the tree with me.
Trying to read on a branch 15 feet off the ground while holding on to the silly doll was not easy. After nearly falling off twice, I tied one end of a long vine around the doll’s neck and the opposite one around the branch, letting the doll hang in mid air while I read. I always looked out for my mother, though. I sensed that my playing with the doll was of great importance to her. So every time I heard her coming, I lifted the doll up and hugged her. The smile in my mother’s eyes told me my plan worked.
The inevitable(不可避免的) happened one afternoon. Totally absorbed in the reading, I didn’t hear my mother calling me. When I looked down, I saw my mother staring at the hanging doll. Fearing the worst of scolding, I climbed down in a flash, reaching the ground just as my mother was untying the doll. To my surprise, she didn’t scold. She kept on staring at the doll．
The next day, my father came home early and suggested he and I play with the doll’s house. Soon I was bored, but my father seemed to be having so much fun, I didn’t have the heart to tell him. Quietly I slipped out, picking up my book on my way to the yard. So absorbed was he in arranging and rearranging the tiny furniture that he didn’t notice my quick exit.
Almost 20 years passed before I found out why the hanging-doll incident had been so significant for my parents. By then I was a parent myself. After recalling the incident, my mother said all those years she had been afraid whether I would turn out to be a most loving and understanding mother to my son．
My mother often thanks God aloud for making me a good parent, pointing out that with education I might have been a rich dentist instead of a poor poet. I look back on that same childhood incident, recalling my third gift, the book in red-paper, and I take advantage of the experiences that have made me who and what I am. Sometimes I pause to wonder at life’s wonderful ironies （讽刺）.Why didn’t the author give the doll a name?
| A．Because the gift was given by her parents. |
| B．Because the girl didn’t care much for the doll. |
| C．Because her parents would give the doll a name. |
| D．Because the doll had little in common with her. |
The author’s account of a childhood incident shows that, as a young girl, she viewed her parents as people who.
| A．hoped to shape their children’s future |
| B．were unconcerned about their behavior |
| C．ruined their children’s dreams completely |
| D．might withdraw their love at any moment |
What can we infer from the last paragraph?
| A．The mother is now satisfied with her daughter’s career. |
| B．The daughter now regrets what she did when she was a girl. |
| C．The mother thinks the daughter’s achievements are unsatisfactory. |
| D．The daughter wishes that she had been allowed more freedom as a child. |