Are you facing a situation that looks impossible to fix?

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

    According to a review of evidence in a medical journal runners live three years{#blank#}1{#/blank#}(long) than non-runners You don't have to run fast or for long{#blank#}2{#/blank#}(see)the benefit You may drink, smoke, be overweight and still reduce your risk of {#blank#}3{#/blank#}（die）early by running.

    While running regularly can make you live forever, the review says it {#blank#}4{#/blank#} (be)more effective at lengthening life {#blank#}5{#/blank#}walking ,cycling or swimming. Two of the authors of the review also made a study published in 2014 {#blank#}6{#/blank#}showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all {#blank#}7{#/blank#}(cause).

    The best exercise is one that you enjoy and will do. But otherwise ……

It's probably running. To avoid knee pain, you can run on soft surfaces to {#blank#}8{#/blank#}(strength)your leg muscles(肌肉),avoid hills and get good running shoes. Running is cheap, easy and it's always {#blank#}9{#/blank#}(energy). If you are time poor, you need run for only half the time to get the same benefits other sports, so perhaps we should all give {#blank#}10{#/blank#}a try.

    Long before Barack Obama became president of the United States, he wrote a book {#blank#}1{#/blank#}(call) Dream from My Father: A Story of Race and Inheritance, which has since become {#blank#}2{#/blank#} bestseller. It is an {#blank#}3{#/blank#}(appeal) book that includes what he went through during {#blank#}4{#/blank#}(he) childhood. Obama has little contact with his father {#blank#}5{#/blank#}roots were in Kenya because he left home when Obama was very young. His mother got married {#blank#}6{#/blank#}a student from Indonesia shortly after the family moved to Jakarta. A few years later, Obama came back with his grandparents to Hawaii, where he{#blank#}7{#/blank#}(attend) a private high school. {#blank#}8{#/blank#}(study) at Columbia in New York City, he then entered Harvard Law School. This autobiography also touches {#blank#}9{#/blank#}(heavy) on Obama's exposure to racism. Readers will find his reflections of childhood {#blank#}10{#/blank#}(experience) which involved racial discrimination to be especially moving.

Nosey and the Porcupine（豪猪）

    Nosey knew that she was supposed to stay in the yard, but the gate was let open. She took a glance {#blank#}1{#/blank#} the woods up the street. For Nosey there was nothing as wonderful as {#blank#}2{#/blank#}(dash) among the trees and sniffing（嗅）the flowers. After all, she was called Nosey for a reason. Her name described her usual, day-to-day {#blank#}3{#/blank#}(behave).

    She quietly slipped out of the yard and headed towards the woods. Soon after Nosey arrived in the woods, a butterfly landed on her nose. She reached for it, {#blank#}4{#/blank#} it few away. Then Nosey {#blank#}5{#/blank#}(spot) it again on a berry bush. When she was within striking distance, she jumped. The butterfly fluttered out of Nosey's reach once more, but it was too late for Nosey {#blank#}6{#/blank#}(stop). She landed directly on top of the berry bush with a crash. At first, she was astonished by the sudden fall. Then she was shocked to find {#blank#}7{#/blank#}(she) face to face with a sleeping porcupine under the bush!

    The arrival of a {#blank#}8{#/blank#}(noise) visitor caused the porcupine to wake up. Nosey had ever seen a porcupine before, so she gently sniffed at it with her nose, {#blank#}9{#/blank#} really annoyed the porcupine. He turned around and the quills（棘刺）on his tail were standing up. {#blank#}10{#/blank#}(sudden) Nosey found herself with a nose full of quills.

    We all know that the Friday after Thanksgiving means a mad dash to the shopping centre for ridiculous sales. But how did this bargain shopping get {#blank#}1{#/blank#}(it) start?

    In fact, the first Black Friday had nothing {#blank#}2{#/blank#} (do) with Thanksgiving or shopping. The origin of Black Friday as we know it today started in Philadelphia during the 1950s and 1960s. Crowds of people would come to town the day after Thanksgiving for the annual Army­Navy football game to be held the {#blank#}3{#/blank#} (follow) Saturday. Streets and {#blank#}4{#/blank#} (store) were always crowded, which was great for business but made easy­pickings for shoplifters (行窃者). Local police called this “Black Friday”. Not only did they have to deal with extra traffic {#blank#}5{#/blank#} shoplifting, but they had to work extra hours and couldn't request the day off.

    The term didn't go national {#blank#}6{#/blank#} the late 1980s, but the {#blank#}7{#/blank#} (explain) changed. While shopkeepers {#blank#}8{#/blank#} (general) suffered financial losses most of the year, the increase of holiday shoppers marked the first day of real profit. In traditional accounting (会计) practices a few years ago, losses {#blank#}9{#/blank#} (record) in red ink, and profits in black ink. So the day after Thanksgiving, {#blank#}10{#/blank#} companies go “into the black” and make a profit, became Black Friday.

    I love the desert {#blank#}1{#/blank#} it makes me feel spiritual. I especially like the orange and red sunset in the desert. When the night {#blank#}2{#/blank#} (come), I lay my blanket, build a fire, and eat some dinner. Then I like lying on the sand and looking at the countless {#blank#}3{#/blank#} (star) in the sky. At this time I can feel more relaxed. I'll wait for another beautiful picture in the morning, the sunrise.