Nowadays many people drive to work. It causes more traffic accidents. As students, how can we do to guarantee our safe？First of all, the traffic rules must be strict obeyed. When we cross streets, wait until the traffic light turn green. Next, don't forget walk on the pavement. Finally, I think it is the danger to us to wear headphones while we're walking or cycling. Since we can't pay enough attention on the traffic around us, an accidents may happen. Taking good care of ourselves and don't let our parents worry about them.

   Researchers are placing robotic dogs in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in the human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people’s depression, physical activity, and life satisfaction. “No one will argue that an older person is better off being more active, challenged, or stimulated (刺激), ”Edwards points out. “The problem is how we promote that, especially for those without friends or help. A robotic dog could be a solution.”

In the study, the robotic dogs, called AIBO, are placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect data for six weeks. These old people will keep a diary to note their feelings and activities before and after AIBO being placed. Then, the researchers will study the data to determine if it has inspired any changes in the life of its owner.

“I talk to it all the time, and it responds (回应) to my voice,” says a seventy-year-old lady. “When I’m watching TV, it’ll stay in my arms until it wants to go down. It has a mind of its own.”

The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.

“At the beginning, it was believed that no one would relate to the robotic dog because it is metal and not furry,” Beck says. “But it’s amazing how quickly we have given up that belief.”

“Hopefully, down the road, these robotic pets could become a more valuable health helper. They will record their masters’ blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people’s minds.”

   Here are four principles (行为准则) I live by. Whenever I follow these guidelines, I am at my very best, feeling productive and happy.

Devote time.

No matter how talented we may be, it’s wrong to think we can do it all. 【小题1】 The value of our achievements is greatly decided by what we spend our time on. We need to realize that every day we should devote the time to what matters and have the courage to let the unimportant things go.

Focus your attention.

Very often it seems that we just can’t focus our attention, even though we know what we should be doing, right? Resistance (阻力) makes us get disturbed by distractions.【小题2】 Developing a plan for overcoming resistance is important for maximum productivity.

【小题3】

We need to make a balance between work and play, between creation and pleasure.【小题4】 Even if we feel energetic to work long hours, the most effective long-term way is to hold ourselves back when we feel crazy and follow a proper pace instead.

Keep moving on.

More important than setting big goals is to just keep going. I know this goes against most of the “ set great goals for yourself” advice, but it’s what works for me.【小题5】 And it always made me more worried than it helped. Now, what does work for me is to think about how to improve my life and take small steps to make it happen.

   Now a new study has showed a key trick in getting the best deal - asking for a range of pay, rather than a single figure.

The research contradicts（与……抵触）traditional wisdom that argues giving a range will automatically cause employers to focus on the lower end of the offer. For instance, if you want  $90,000 and you suggest a range between $90,000 and $110,000, the study finds employers are more likely to make a higher offer.

But simply asking for $110,000 in the first place increases the chances of the deal falling apart, as it is a sign that the employee is not open to negotiation（协商）.

The team made the discovery after running a series of experiments involving Amazon Mechanical Turk workers and business school students.

Respondents were asked not only what they thought their negotiation partner's lowest acceptable offer could be, but also questions designed to show how they viewed their partner.

One type of offer, called a “bracketing” range,places the figures on either side of the desired salary. For instance, if you want $90,000, you'd ask for a range of between  $80,000 and $100,000. This causes employers to offer the lower end of the scale,but, unlike single figure offers, the deals rarely fall apart as the negotiator is often viewed favourably. “If your goal is to get along with someone without losing money, the‘bracketing' range offers may be a good move,”Dr Ames told the Wall Street Journal.

The“backdown”range offer, meanwhile, uses the target salary as the high figure in the range. For $90 ,000, an employer would ask for a range between $70,000 to $90,000. These range offers , predicta-bly, give the worst results in terms of pay.

However, Dr Ames warns against setting the range too high and says the most successful range is usually within 20 per cent of the target offer.