John Snow was a famous doctor in London-so{#blank#}1{#/blank#},indeed,that he{#blank#}2{#/blank#}Queen Victoria as her personal physician. But he became{#blank#}3{#/blank#}when he thought about helping ordinary people{#blank#}4{#/blank#}to cholera.This was the deadly disease of its day.Neither its cause nor its{#blank#}5{#/blank#}was understood.So many thousands of terrified people died every time there was an outbreak.John Snow wanted to face the challenge and solve this problem.

    First there was England.Wales was{#blank#}6{#/blank#}to it in the thirteenth century.Now when people{#blank#}7{#/blank#}to England you find Wales{#blank#}8{#/blank#}as well.Next England and Wales were joined to Scotland in the seventeenth century and the name was changed to "Great Britain".Happily this was accomplished without{#blank#}9{#/blank#}when King James of Scotland became King of England and Wales as well.Finally the English government tried in the early twentieth century to form the United Kingdom by getting Ireland{#blank#}10{#/blank#}in the same peaceful way.

    {#blank#}1{#/blank#} we know, there are three medalists in Olympic races: the gold, the silver, and the bronze (铜牌).

    Imagine what it's like to be the silver medalist. If you {#blank#}2{#/blank#} (be) just one second faster, you could have won the gold! So close! You would keep comparing yourself to be the gold winner, full {#blank#}3{#/blank#} envy.

    Now imagine what it's like to be the bronze medalist. One second {#blank#}4{#/blank#} (slow), and you wouldn't have won anything! Whoo-hoo! You would be thrilled that you were {#blank#}5{#/blank#} (official) an Olympic medalist, and got to stand on the winner's podium at all.

    You can {#blank#}6{#/blank#} compare up or compare down and your{#blank#}7{#/blank#} (happy) depends on where you're focusing. This is easy to understand, but hard to remember in everyday life. If you catch yourself {#blank#}8{#/blank#} (bum) with envy of anger, think like the bronze medalist, not the silver. Change your focus.

    For example, if you buy something that is “the best”, you may feel like a gold winner, but when the new “best” {#blank#}9{#/blank#} (come) out next year, you'll feel like the siver. Instead, if you look at what you buy as something “surprisingly good”, it will keep you in the bronze mindset. Since you're not comparing it to best, you'll feel no need {#blank#}10{#/blank#} (keep) up with the newest thing.

    CPR is an effective form of first aid {#blank#}1{#/blank#} (give) to the victim whose heart stops. Doing it can increase the chance of the victim's {#blank#}2{#/blank#} (survive). So knowing CPR can be a real lifesaver.

    How to give CPR? There are {#blank#}3{#/blank#} (simple) three steps. Firstly, roll the victim onto his back and do chest compression (按压). {#blank#}4{#/blank#} this way, it keeps blood flowing to the brain, heart and other organs. To perform the compression, place one hand over {#blank#}5{#/blank#} other and press firmly on the victim's chest many times in a row, {#blank#}6{#/blank#} (push)at least 2 inches deep on every compression. Then after compressions {#blank#}7{#/blank#}(complete), check the air way {#blank#}8{#/blank#} (see)whether the person is breathing. If not, perform mouth-to-mouth rescue breathing, {#blank#}9{#/blank#}helps to move the oxygen down into the victim's lung. And chest compression should start again right after the two breaths are given.

    Learn CPR, for you never know when you might need {#blank#}10{#/blank#}. And it feels good to know that you could help in case of emergency.