Are you facing a situation that looks impossible to fix?

    In 1969, the pollution is terrible along the Cuyahoga River near Cleveland, Ohio. It {#blank#}1{#/blank#} (be) imaginable that it could be ever be cleaned up. The river was so polluted that it {#blank#}2{#/blank#} (actual) caught fire and burned. Now year later, this river is one of{#blank#}3{#/blank#} most outstanding examples of environmental cleanup.

    But the river wasn't changed in a few days{#blank#}4{#/blank#} even a few months. It took years of work {#blank#}5{#/blank#} (reduce) industrial pollution and clean the water. Finally, that hard work paid off and now the water in the river is{#blank#}6{#/blank#} (clean) than ever.

    Maybe you are facing an impossible situation. Maybe you have a habit {#blank#}7{#/blank#} is driving your family crazy. Possibly you drink too much or don't know how to control your credit card use. When you face such impossible situation, don't you want a quick fix and something to change immediately.

    While there are{#blank#}8{#/blank#} (amaze) stories of instant transformation, for most of us the {#blank#}9{#/blank#} (change) are gradual and require a lot of effort and work, like cleaning up a polluted river. Just be{#blank#}10{#/blank#} (patience)

    The other day, I met an old man whose name was Ted, 91 years old. He told me about his{#blank#}1{#/blank#}(believable) unusual story. He had lived through the Great Depression, served in the defence force and worked on{#blank#}2{#/blank#}farm. He was so knowledgeable that he knew a lot in many areas of life. He was building model carts(手推车)that day. His pale hands reached out to a folder on the table, and he{#blank#}3{#/blank#}(take) out some photos. In the photos I saw his collection of model carts. Ted took me through each photo and explained{#blank#}4{#/blank#}was in each photo. He started telling me about how he cut steel{#blank#}5{#/blank#}(build) his model carts. He seemed very{#blank#}6{#/blank#}(enthusiasm). He gave me some valuable life{#blank#}7{#/blank#}(lesson). He repeatedly kept saying that {#blank#}8{#/blank#}(learn) is very important in life.{#blank#}9{#/blank#}(impress) by his love and enthusiasm for life at the age of 91, I realized that there can't be any barriers in life{#blank#}10{#/blank#}we impose (把……强加于) those barriers on ourselves.

    The burn is a kind of common but very painful {#blank#}1{#/blank#} (injure), While minor burns will heal without much medical attention, severe burns require special care {#blank#}2{#/blank#} (prevent) infection. Before you treat a burn, it is important to understand {#blank#}3{#/blank#} degree of the burn you have suffered.

    First degree burns are the most common and happen as a result of brief contact with hot items and the sun. The damage is only {#blank#}4{#/blank#} the most outer layer of the skin. They will likely appear red and may be {#blank#}5{#/blank#} (mild) painful.

    When you have a second degree burn, your skin might appear {#blank#}6{#/blank#} (swell), blisters will form and the pain will be math more intense. Second degree burns come from brief contact with extremely hot {#blank#}7{#/blank#} (thing), extended contact with hot items and long exposure time in the sun.

    Third degree burns are the most serious {#blank#}8{#/blank#} they need immediate medical attention. These happen when extended exposure to a hot object burns through all three layers of your skin, sometimes {#blank#}9{#/blank#} (cause) muscle, fat and bone damage. The burns will have a white or black {#blank#}10{#/blank#} (appear). The pain can vary depending on the level of damage to the nerves in the skin layer. These burns can look wet because of the break of the cells.

    Should naps(小睡) actually{#blank#}1{#/blank#} (take) during the day? Well, we certainly know from{#blank#}2{#/blank#}(evident) in the sleep center and that of many other scientists that naps can give you benefits for both your brain{#blank#}3{#/blank#} your body. But naps can actually be{#blank#}4{#/blank#} double-edged sword because while we're awake during the day, we're building up sleepiness or sleep pressure. So when you try to fall asleep at night, you'll fall asleep quickly and then you'll stay asleep. And when we sleep, we actually release that sleepiness so that we wake up the next morning feeling{#blank#}5{#/blank#}(refresh).

    So if you take a nap during the day, especially if you take it too late in the afternoon, you will actually release some of that sleepiness and it will make it much{#blank#}6{#/blank#}(hard) to fall asleep and stay asleep soundly throughout the night. So the advice would be if you don't struggle with your sleep and you can nap{#blank#}7{#/blank#}(regular), then naps are just fine.

    But if you do find it difficult{#blank#}8{#/blank#} (fall)asleep or stay asleep at night, then you should avoid naps and try to build up that healthy sleepiness in the evening.

    The ideal nap depends on{#blank#}9{#/blank#} you want from that nap. Different stages of sleep actually give you different types of brain and body{#blank#}10{#/blank#} (benefit).