Article: There is an English saying, "Laughter is the best medicine." Until recently, few people took the saying seriously. Now however, doctors have begun to look into laughter and the effects it has on the human body. They have found that laughter really can improve people's health. Tests were carried out to study the effects of laughter on the body. People watched funny films while doctors checked their heart, blood pressure, breathing and muscles. It was found that laughter has similar effects to physical exercise. It increases blood pressure, makes the heart beat quicker and makes people breathe deeper; it also works several groups of muscles in the face, the stomach, and even the feet. If laughter exercises the body, it must be beneficial. Other tests have shown that laughter appears to be able to reduce the effect of pain on the body. In one experiment doctors produced pain in groups of students who listened to different radio programmes. The group that tolerated the pain for the longest time was the group which listened to a funny programme. The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemical in the brain which _ both stress and pain. As a result of these discoveries, some doctors in the United States now hold laughter clinics, in which they help to improve their patients' condition by encouraging them to laugh. They have found that even if their patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter. Question: According to the author, we should _ in our life. Yes or no, is the answer "laugh as much as possible"?
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Article: Sydney Airport International Terminal -Arrival Area SPECIALTY RETAIL Newslink: Two separate Newslink stores _ all your reading needs including newspapers, magazines and the latest bestsellers. Downtown Duty Free: Make sure you shop at Downtown Duty Free for great savings on a range of items including perfume, alcohol, skincare and cigarettes. It's your last chance before customs. Beach Culture: A must for those into the Latest in beach clothing. Top surfer street and fashion labels including Mambo, Stussy and Quicksilver, including children's sizes. DINING Blue Sky Cafe: Speedy service leaves you time to keep an eye on the arrivals gate. Fresh milk, coffee, lemon juice, beer, Whisky, ice-cream, soda water, cakes and dumplings are on sale. Macdonald's: hamburgers, fries, pancakes, toasted potatoes, muffins, Pepsi, coca-cola and chocolates-all your family favorites. Breakfast served until 10:30. SERVICES ATM: ATMs are conveniently located throughout Arrival and Departures. Dollars, pounds and francs and RMB are all available. Vodafone Rentals: This communications center offers the very latest technology for mobile phone rentals, sales and serving. Question: Where is the passage likely to appear? Yes or no, is the answer "An official guide."?
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Article: In South America, the rich soil of the Amazon River basin in Brazil is known as "black gold". Scientists found that the secret of this rich soil was charcoal . Local people made it from animal bones and tree branches. They mixed the charcoal with the soil about 1.500 years ago. Now, scientists in the United States have done a modern demonstration. They say charcoal fertilization offers a revolutionary way to improve soil quality for hundreds or even thousands of years. Mingxin Guo and his team at Delavare State University heated tree leaves, corn stalks , small pieces of wood and poultry waste into "biochar" . They reported their findings at a recent meeting of the American Chemical Society in New Orleans. Biochar could be good news for farmers with poor soil and hungry populations to feed. Professor Guo says it could even help against global warming. Intensive farming and overuse of chemical fertilizer give out carbon dioxide into the atmosphere. Biochar does the opposite, he says. It traps carbon in the ground. The researchers planted winter wheat in containers of soil in a greenhouse -- some with biochar, some without. Professor Guo says the wheat grows much better in the pots with biochar. The soil was added two percent charcoal to. But he says even a one percent treatment will increase productivity. The results demonstrated that biochar can increase organic matter in soil. Loss of nutrients in soil is an increasing problem worldwide as farmers try to grow more food for growing populations. Next, the team will carry out a five-year study of biochar with spinach , green peppers and tomatoes. Mingxin Guo says he learns about the "black gold" in Brazil from a magazine story. He explains that it was discovered in the jungle, in the area where waters flow to the Amazon, in the 1960's. But it was not until recent years that scientists began to bring public attention to it. Question: Which of the following can be the best title of the passage? Yes or no, is the answer "Using Charcoal to Make soil into "Black Gold""?
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Article: A portable lung which could help those with breathing problems lead a normal life is being developed by scientists. The Swansea University scientists say it could take many years before the device , the size of a spectacle box , is available . Lung patients , who have seen how it would work , have welcomed the research. Its research suggests that one person in every seven in the UK is affected by lung disease---- this equates to approximately 8 million people. As of 6 March 2009, 217 people were on the waiting list for a lung transplant according to figures by NHS Blood and Transplant . Now scientists in Swansea are developing a portable artificial lung which could transform the lives of patients . Researchers claim that in the long term the device could offer an alternative to lung transplant , giving hope to those who suffer from conditions such as emphysema and cystic fibrosis. The device mimics the function of a lung---by getting oxygen into and carbon dioxide out of the blood stream . Professor Bill Johns came up with the idea after his son died of Cystic Fibrosis . It is important that we make something that will help people , who instead of being confined to a wheelchair with an oxygen bottle , can actually walk around and do things for themselves , he said. Although the research has been welcomed by leading charities , caution has also been voiced over the length of time it will take before a portable lung will become available . "We have to stress that this is several years away from being used , even in a trial stage," said Chris Mulholland , head of the British Lung Foundation. Patient Elizabeth Spence from Swansea has been refused the double lung transplant she needs but remains hopeful that one day the new device could save her . " My body will reject the lungs , so this possibly could be an answer--- another way of getting new lungs without actually having the transplant," she said. Question: Which of the following about the portable lung would the author agree? Yes or no, is the answer "It was once on display"?
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