Divide the bills evenly. Some studentsare far less responsible than their roommates and tend to let their part of thefinance slide. Dissatisfaction is quick to build when everyone has to pay thebill for a fellow student who can't seem to pay his/her share of the money.

    Carry your part of the load. Everyonehas to clean the bathroom and the kitchen sometime. Don't avoid your part ofresponsibility. Student accommodations can get messy and it involves everyoneto keep them tidy and healthy.

    Think about someone else before youthink about yourself. Put your roommates interests above your own. Life will befar enjoyable when everyone is concerned about the feelings property andstudies of each other.

    Be open and honest. Hostilities (敌意) andfrustrations may cause problems that can't be fixed. Everyone brings differentstandards and expectations to group living and it's in everyone's best interestto put them into the open. Disagreements can be managed more warmly when your arewilling to be both open and listen to others.

    Here are some of the smartest animals in the world.

Pigs

    Pigs are actually very smart animals. Pigs are one of the cleanest if they are given a choice. If you provide them with enough space, they will make sure they separate their dining area from their living space. Studies have also shown that they can actually be good at video games. To get food, they will follow other pigs and then steal it from right under their noses. The victimized(受害的)pigs will then come out wiser from this. They will change their behavior next time to prevent other pigs from stealing from them.

Crows

    They are smart and creative, with the highest IQ among all birds. Crows have been known to throw nuts and shells on a road so that cars will drive over and open them. They also have the ability to make knives to cut leaves and grass.

Elephants

    They have extremely large brains, even bigger than humans'. They bury(埋葬)their dead families and friends properly, the only other animal to do this besides humans. They also know which leaves are medicinal and will eat specific plants depending on the sickness they are feeling. They also have the ability to recognize themselves in the mirror.

Bottlenose Dolphins

    They actually have the ability to watch television on the their own because of their ability to process acoustic and visual(视觉和听觉)information at the same time. They can also recognize themselves in the mirror, which they use to inspect their own bodies. Their comprehension skills are very high. Studies have shown that they even have the ability to choose the “I don't know” option during difficult tests.

    When you need to see a doctor, surely you will want to see a good one. But there is one important thing you may never have thought about: Has your doctor rested enough?

    Doctors in our country often have to work 34 hours or longer without sleep. Most of them work 104 hours a week, and some even 150. (There are only 168 hours a week!) One report said that a doctor who works such long hours cannot think more clearly than a drunk driver. Another found that doctors who sleep 5.8 fewer hours than the week before might make 22% more serious mistakes. Surely no one wants to get in a car that is driven by a drunk driver. So, how safe would you feel when you are under the care of a tired doctor?

    Sadly this problem has been around for a long time. There are no laws about it yet and hospital bosses don't look like they care either. And that is why we doctors are asking you to join us on the street this Sunday. Fight together with us on the street so we can fight better for your life in the hospital.

Time: 1 p. m. July 15            Place: City Hospital Square

    Dogs were living as companions to the early settlers of North America over 10,000 years ago. The oldest domestic dogs in the Americas were thought to be around 9500 years old. Angela Perri of Durham University, UK, and her colleagues have carried out fresh radiocarbon dating on the two dog skeletons that gave this date, discovered in the prehistoric Koster site in Illinois, and found they were even older: around 10,100 years old.

    A third dog from another Illinois site called Stilwell II was older still, at 10,190 years old. That makes it the oldest known domesticated dog in the Americas. The team concluded that all three dogs were domesticated as they skeletons were complete and unskinned, and so hadn't been butchered for food. They had also been carefully buried, evidence they were valued by their owners. The Stilwell II dog, which probably resembled a small English settler, was under what seemed to be the floor of a living area. It is unclear why it took so long for tame dogs to arrive in the Americas, given that they were domesticated at least 14,000 years ago in Eurasia. By this time, people were already moving into North America from Siberia; there is evidence some reached Chile 18,500 years ago. Geneticists have found signs of at least three waves of migration over the following millennia. There is no evidence that domestic dogs accompanied them. “We don't know if dogs were part of the first waves of immigration to the Americas" says Luc Janssens of Ghent University in Belgium. "It could be so, but no archaeological bones have yet been found." It is "overwhelmingly probable" that some of the early settlers did bring dogs to the Americas, but they may not have had "the time or the spiritual compulsion to bury them", says Pat Shipman of Pennsylvania State University.

    What is the single most effective way to reduce greenhouse-gas emissions? Go vegetarian (素食)？ Replant the Amazon? Cycle to work? None of the above. The answer is: make air-conditioners better. On one calculation, replacing refrigerants (制冷剂) damaging the atmosphere would reduce total greenhouse gases equaling 90bn tonnes of CO₂ by 2050. Making the units more energy-efficient could double that. By contrast, if half the world's population gave up meat, it would save 66bn tonnes. Replanting two-thirds of tropical forests would save 61 bn tonnes. A one-third increase in global bicycle journeys, just 2.3bn tonnes.

    Air-conditioning is one of the world's great overlooked industries. Automobiles and air-conditioners were invented at roughly the same time, and both have had a huge impact on where people live and Work. Unlike cars, though， air-conditioners have drawn little criticism for their social impact, emissions or energy efficiency. Most hot countries do not have rules to govern their energy use. There is not even a common English word for “coolth” (the opposite of warmth).

    Yet air-conditioning has done more than most things to benefit humankind. Lee Kuan Yew, the first prime minister of Singapore, called it “perhaps one of the signal inventions of history”. It has transformed productivity in the tropics(热带地区)and helped turn southern China into the workshop of the World. In Europe, its spread has pushed down heat-related deaths to 10% since 2003, Men 70,000 people than usual, most of them elderly, died in a heatwave. For children, air-conditioned classrooms are associated with better grades at school.

    Environmentalists who call air-conditioning “a luxury we cannot afford” have half a point, however. In the next ten years, as many air-conditioners will be installed(安装)around the world as were put in between 1902(invention time)and 2005.Unless energy can be produced without carbon emissions, these extra machines will warm the world. At the moment, therefore, air-conditioners create a vicious cycle. The more the Earth warms, the more people need them. But the more there are, the warmer the world will be.

    Cutting the impact of cooling requires three things. First, air-conditioners must become much more efficient. The most energy-efficient models on the market today consume only about one-third as much electricity as average ones, Minimum energy-performance standards need to be raised raised, orintroduced in countries that lack them altogether, to push the average unit's performance closer to the standard of the best.

    Next, manufacturers should stop using damaging refrigerants. One type called hydrofluoro-carbons, is over 1,000 times worse than carbon dioxide when it comes to trapping heat in the atmosphere. An international agreement to knock out these pollutants will come into force in 2019.

    Last, more could be done to design offices, malls and even cities so they do not need as many air-conditioners in the first place. More buildings should be built with overhanging roofs or balconies for shade, or with natural ventilation (自然通风).Simply painting roofs white can help keep temperatures down. Providing indoor air-conditioned comfort need not come at the expense of an overheating world.

Kitchen Products That Will Make Your Life Easier

Food Chopper (切碎机) with Storage Container

Using a food chopper to save time and effort when preparing dinners is always a smart idea. But using a food chopper that doubles as a storage container is more convenient. This one is made of BPA-free plastics and comes with three interchangeable blades (刀片) so you can chop your vegetables in various sizes.

Available on Amazon. $ 18. 99

Mixing Bowl Set with No-skid (防滑的) Bottoms and Pour Spouts

This clever set of mixing bowls solves a few problems we didn't realize we had. For one thing, it has no-skid bottoms, so you can more easily have control over the bowl while using a hand mixer or other tools. And for another, the specially designed part makes it easy to pour liquid from the bowl into a pan or baking dish with hardly any effort. Plus, they're pretty cute.

Available on Amazon. $ 21. 97

Rubbermaid Fresh Works Produce Saver

Do you feel like you're constantly throwing away fresh vegetables you just bought? Rubbermaid's Fresh Works containers come in a variety of sizes, and are made to help food and vegetables remain fresh for as long as possible-saving your time and money in the long run.

Available on Amazon, $ 6. 99

Heat-Resistant Gloves

These aren't your grandma's potholders. These heat-resistant gloves are made with high-quality silicone, making them effective against high temperatures and non-slip. They're also multi-purpose, since you can use them inside when removing plates from the oven or outside while barbecuing.

Available on Amazon, $ 14. 99