Boris Worm of Dalhousie University in Nova Scotia, Canada, led the international team that did the study. Professor Worm says species have recently been disappearing from oceans at increasing speed. At this rate, he says, all seafood species could collapse by 2048 and seafood supplies from the world's ocean could be almost gone by then. Other studies have also warned about the dangers of overfishing and the effects on ocean environments. But not everyone thinks the oceans are likely to be empty in fifty years. Some scientists said parts of the world do have problems, but others are doing a good job of protecting fish populations. Government officials in several countries with large fishing industries also questioned the research. The study appeared earlier this month in Science magazine. The researchers say damage to oceans affects not only fish populations but also the productivity of ecosystems. These complex systems help control water quality. The scientists say the loss of different kinds of sea life appeared to increase the risk of fish kills and beach closures from harmful algae growth. The scientists examined the results of thirty-two experiments and observed forty-eight protected areas. They also looked at records of catches worldwide. They studied records from the United Nations Food and Agriculture Organization for nineteen fifty to two thousand three. And they examined archeological information and other historical records for twelve coastal areas. That research reached back over a thousand years. Boris Worm says the findings were, in his words, "beyond anything we suspected." But he also said the situation is not too late to correct. He said that with good fisheries management, some species could completely recover in three to ten years. The research led by Boris Worm _ . A) was conducted by scientists from Canada B) referred to information of many countries C) lasted from 1950 to 2003 D) referred to records dating back to over 1,000 years ago.
B
Jessica Alba rebelled from her "strict" parents when she was just five. The 29-year-old actress admits her Catholic education made her want to "break away" from her mother Catherine and father Mark. She explained: "It's always been weird because I grew up in a very traditional, Catholic household. My parents were very strict but I broke away from that at an early age. I was a feminist when I was five. These days, I am much more independent but I still respect their beliefs." As Jessica has grown older she has learnt to accept her parents' views, but still considers herself an independent woman. In her latest film 'Machete' Jessica gets to stab a love rival in the eye with her stiletto heels , something she thoroughly enjoyed. She said: "Walking in 3in heels wasn't as much fun as putting one in someone's eye. It was 104 degrees where we were shooting in Texas and they were not comfortable." Jessica - who has a two-year-old daughter Honor with husband Cash Warren - is regularly referred to as one of the world's most beautiful women, but she doesn't think of herself as "sexy". She added in an interview with the Metro newspaper: "I don't really pay attention to that sexy image. It just goes with the character in the movie. At the end of the day, it's all a part of selling a product." This passage is mainly about _ . A) a rebellious movie star Jessica B) a weird woman C) an interview with a newspaper D) a rebellious heart
A
Q: Farming is moving indoors, where the sun never shines, where rainfall is irrelevant and where the climate is always right. The perfect crop field could be inside a windowless building with controlled light, temperature, wetness, air quality and nutrition. It could be in a New York high-rise or a sprawling complex in the Saudi desert. It may be an answer to the world's food problems. The world is already having trouble feeding itself. Half the people on Earth live in cities, and nearly half of those--about 3 billion--are hungry or ill-fed. Food prices, currently increasing, are _ by dryness, floods and the cost of energy required to plant, harvest and transport. And prices will only get more unstable. Climate change makes long-term crop planning uncertain. Farmers in many parts of the world are already using water available to the last drop. And the world is getting more crowded: by mid-century, the global population will grow from 6. 8 billion to 9 billion. To feed so many people may require expanding farmland at the expense of forests and wilderness, or finding ways to completely increase crop output. Gertjan Meeuws has taken the concept of a greenhouse a step further, growing vegetables and house plants in enclosed and regulated environments. In their research station, water flows into the pans when needed, and the temperature is kept constant. Lights go on and off, creating similar day and night, but according to the rhythm of the plant. A building of 100 square meters and 14 layers of plants could provide a daily diet of 200 grams of fresh fruit and vegetables to the entire population of Den Bosch, about 140, 000 people. Their idea is not to grow foods that require much space, like corn or potatoes. Here sunlight is not only unnecessary but can be harmful. Plants need only specific wavelengths of light to grow. Their growth rate is three times faster than under greenhouse conditions. They use about 90 percent less water than outdoors agriculture. And city farming means producing food near the... What is the text mainly about? A) Development of indoor farming. B) Great Revolution in farming. C) Advantages of indoor farming. D) Sunless, rainless indoor farming.
A: D
(Question)
"How lucky you are to be a doctor..." Anyone who's a doctor is right out of luck, I thought. _ You may think I want to change my job. Well, at the moment I do. As one of my friends says-even doctors have a few friends-it's all experience. Experience! I don't need such experience. I need a warm, comfortable, undisturbed bed of my own. I need it badly. I need all telephones to be thrown down the nearest well, that's what I need. All these thoughts fly round my head as I drive my Mini through the foggy streets of East London at 3:45 a.m. on a December morning. I am a ministering angel in a Mini with a heavy coat and a bag of medicines. As I speed down Lea Bridge in the dark at this horrible morning hour, the heater first blowing hot then cold, my back aching from the car-seat, I do not feel like a ministering angel. I wish I were on the beach in southern France. Call me a bad doctor if you like. Call me what you will. But don't call me at half past three on a December morning for an ear-ache that you have had for two weeks. Of course, being a doctor isn't really all bad. _ . Once in a while people are ill, once in a while you can help, once in a while you get given a cup of tea and rock-hard cake at two o'clock in the morning-then you worry if you have done everything. But all too often 'everything' is a repetitious rule: look, listen, feel, tap, pills, injection, phone, ambulance, away to the next. And then there is always the cool, warm voice of the girl on the switchboard of the emergency bed service who will get your patient into hospital for you-the pleasant voice that comes to you as you stand in the cold, dark, smelly, dirty telephone box somewhere in a dangerous section of town. Oh, it has its moments, this life does. We can conclude that _ . A) the author is worried about his patient when he is driving through the foggy streets of East London B) the author is annoyed to be called out at such an horrible morning hour for an ear - ache patient C) the author is now heading for the beach in Southern France for his holidays D) as the author speeds down Lea Bridge in the dark on a December morning, his Mini breaks down half way
(Answer)
B