By the mid-nineteenth century, the term “icebox” had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, pubs, and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butler. After the Civil War (1861-1865), as ice was used to refrigerate freight cars(货车), it also came into household use. Even before 1880, half the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use. This had become possible because a new household convenience, the icebox, a precursor（前身）of the modem refrigerator, had been invented.

    Making an efficient icebox was not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was undeveloped. The common belief that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling. Nevertheless, early efforts to economize ice included wrapping the ice in blankets, which kept the ice from doing its job. Not until near the end of the nineteenth century did inventors achieve the delicate balance of insulation(绝缘) and circulation needed for an efficient icebox.

    But as early as 1803, an intelligent Maryland farmer, Thomas Moore, had been on the right track. He owned a farm about twenty miles outside the city of Washington, for which the village of Georgetown was the market center. When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting butter of his competitors to pay an extra price for his butter, still fresh and hard in neat, one-pound bricks. One advantage of his icebox, Moore explained, was that fanners would no longer have to travel to market at night in order to keep their produce cool.

    It's important to prepare for rainy days. Similarly, it's important to save money. {#blank#}1{#/blank#} Why? It's because they've got used to spending all the money they make. Sometimes, the hardest thing about saving money is just getting started. Here are some tips to help you save money.

    {#blank#}2{#/blank#}The first step in saving money is to know how much you're spending. For one month, keep a record of everything you spend money on. Once you have your data, organize these numbers by category(类别) and get the total amount for each.

    You can make a budget(预算). Now that you have a good idea of how much you spend in a month, what can you do now? {#blank#}3{#/blank#} To plan your spending, you can build a budget. In this way, you can limit over-spending and make sure that you put money away for unexpected situations.

    {#blank#}4{#/blank#}Doing so make it much easier to get started. Begin by deciding how long it will take to reach each goal. Some short-term goals include starting a fund to cover 6 months to a year of living costs and saving money for a vacation. Long-term saving goals are often several years or even decades away and can include saving for retirement and putting money away for a child's college education.

    Make saving money easier with automatic transfers (自动转帐). Automatic transfers to your savings account are very helpful. {#blank#}5{#/blank#}By moving money out of your checking account, you'll be less likely to spend money you plan to use for savings.

A. You can set savings goals.

B. You can record your costs.

C. You can plan your spending.

D. You can keep a record of what you do.

E. They can make saving money much easier.

F. However, some people find it hard to save money.

G. You can move money out of your savings account.

    FROM dogs and cats to pandas and penguins, lists of adorable animals can be very varied. However, when it comes to scary animals, the answers are often more or less the same­snakes and spiders are among the most dreadful ones for the majority of us.

    However, most of us have never been bitten by a snake or a spider. So does this mean we are born with a fear of certain things?

    Scientists have been actively looking into it for a long time. For example, studies have suggested that babies find live animals much more interesting than stuffed （毛绒填充的） ones. This interest continues even if those animals are snakes and spiders.

    A study published in Psychological Science in 2008seemed to show that snakes did have a different impact on babies. When scientists presented babies with animal videos along with random sounds of happy or frightened human voices, hey found that babies looked at snakes for longer than any other animal however the voices sounded.

    Now, a team from Rutgers University in New Jersey, US has tried to challenge the idea that babies are born with a fear of snakes and spiders. According to the BBC, the researchers measured babies' physiological （生理的） responses as they watched videos of snakes and elephants paired with both fearful and happy voices.

    Scientists then set out to surprise the babies to see how they would react. They presented them with an unexpected bright flash of light as they watched a video. As the BBC explained, a surprise like this would be more intense （强烈的） if the babies were already scared, just like when we watch scary films and jump more if we are already scared.

    However, according to their findings, published recently in the Journal of Experimental Child Psychology, babies 'surprised responses were not bigger when watching a video of a snake, even when it was shown with a fearful voice. Their heart response was also lower, which also made it seem that babies were not scared.

    "Children do not have an innate fear of snakes," concluded the study. Even if previous studies had suggested that babies have different responses to snakes, it isn't necessarily related to fear. "It's possible that paying more attention to something might make fear learning easier later on. It leads to fear learning," said research co­author Vanessa LoBue. She further explained that it was a good thing that humans didn't have an inborn fear of snakes because it would make a young infant's desire to explore new things less strong.

    Instead, we have evolved to quickly learn to be afraid of something if it turns out to be dangerous.

    Although problems are a part of our lives, it certainly doesn't mean that we let them rule our lives forever. One day or the other, you'll have to stand up and say—problem, I don't want you in my life.

    {#blank#}1{#/blank#} Problems with friends, parents, girlfriends, husbands, and children—the list goes on. Apart from these, the inner conflicts within ourselves work, too. These keep adding to our problems. Problems come in different shapes and colors and feelings.

    But good news is that all problems can be dealt with. Now read on to know how to solve your problems.

    Talk, it really helps. What most of us think is that our problem can be understood only by us and that no talking is going to help. {#blank#}2{#/blank#} Talking helps you move on and let go.

    Write your problems. {#blank#}3{#/blank#} When you write down your problems, you are setting free all the tension from your system. You can try throwing away the paper on which you wrote your problems. By doing this, imagine yourself throwing away the problems from your life.

    Don't lose faith and hope. No matter what you lose in life, don't lose faith and hope. Even if you lose all your money, family…you should still have faith. {#blank#}4{#/blank#}

    Your problems aren't the worst. No matter what problem you get in life, there are another one million people whose problems are huger than yours. {#blank#}5{#/blank#} Your problems might just seem big and worse, but in reality they can be removed.

    Go about and solve your problems because every problem, however big or small, always has a way out.

    Banff National Park is Canada's first national park. In 1883, on the Canadian Rocky Mountains, three railway workers discovered a natural hot spring, and from there the park was born. Nowadays, it is one of the world's popular tourist spots with great mountain scenery. Every year, millions of people visit it for its wonderful views.

Banff National Park is part of UNESCO's Canadian Rocky Mountain World Heritage site. Located in the heart of the Canadian Rockies, the park has perfect mountains like those on postcards. They are from 45 to 120 million years old, with the highest in the park, Mount Forbes, coming in at 11,850 feet.

    Banff National Park is 80 miles west of Calgary. Calgary's international airport is serviced by major national and international carriers with many flights arriving daily. Open year­round, it offers amazing wildlife viewing and sightseeing, plus many shopping and dining choices, any time of the year. Summer is popular for hiking, mountain biking and cycling, photography, and climbing. The best time for viewing the seasonal color is fall, when the trees turn yellow.

    In winter, the mountain makes exciting downhill (速降) and cross­country skiing. In fact, three major downhill ski resorts (度假胜地) operate within the park. Lake Louise Ski Resort, Sunshine Village, and Mount Norquay combine to offer a large area for skiing, not to mention the backcountry trails available throughout the park. The ski season, which runs from November to May, is one of the longest in North America. Visitors can also enjoy wildlife tours, ice walks, and dogsleds (雪橇).

    Weather in the Canadian Rockies can change quickly. A single day can have a mix of sunshine, snow, wind, and rain, so you should change your clothes. In summer, temperatures average a high of 70 (21 ℃), and daylight lasts until 11 p. m. Autumn brings cool nights and fresh air. Winters can be very cold. In January, the average temperature is 7 ℃ below zero, but by April it is 9 ℃.

Humans' overconsumption of resources is a leading contributor to global climate change, says University of Arizona researcher Sabrina Helm. Therefore, it's increasingly important to understand the choices consumers make and how those decisions affect the health of a planet with limited resources. In a new study, published in the journal Young Consumers, Helm and her colleagues explore how materialistic values influence pro-environmental behaviors in millennials, who are now the nation's most influential group of consumers.

The researchers focused on two main categories of pro-environmental behaviors: reduced consumption, which includes actions like repairing instead of replacing older items; and "green buying," or purchasing products designed to limit environmental impacts. The researchers also looked at how engaging in pro-environmental behaviors affects consumer well-being.

More materialistic participants, the researchers found, were unlikely to engage in reduced consumption. However, materialism did not seem to have an effect on their likelihood of practicing "green buying." That's probably because "green buying," unlike reduced consumption, still offers a way for materialists to fulfill their desire to get new items, Helm said.

Study participants who reported having fewer materialistic values were much more likely to engage in reduced consumption. Consuming less was, in turn, linked to higher personal well-being and lower psychological suffering. Green buying—which may have some positive environmental effects, although to a smaller degree than reduced consumption—was not found to improve consumer well-being, Helm said.

The take-home message for consumers: "The key is to reduce consumption and not just buy green stuff. Having less and buying less can actually make us more satisfied and happier," Helm said. "If you have a lot of stuff, you have a lot on your mind," she said. "For example, it requires maintenance and there's a lot of burdens of ownership, and if you relieve yourself of that burden of ownership, most people report feeling a lot better and freer."

Helm and her colleagues additionally looked at how materialism affects millennial consumers' proactive financial behaviors, such as budgeting and saving. Examining financial behaviors alongside pro-environmental behaviors provides a picture of how young adults proactively deal with resource limitations in two contexts: environmental and financial, Helm said.

As expected, Helm and her colleagues found that those who reported having more materialistic values engaged in fewer proactive financial behaviors than their less materialistic counterparts (对应的人). The researchers also found that, consistent with previous studies, proactive financial behaviors were associated with better personal well-being, life satisfaction and financial satisfaction, as well as lower psychological suffering.

Understanding how materialistic values impact consumer behaviors, and how those behaviors in turn affect personal and environmental well-being, is important, Helm said. However, she acknowledges that for many consumers, shifting behaviors to be more financially proactive and consume less will be challenging.