In 1863 the first underground passenger railway in the world opened in London. It ran for just under seven kilometers and allowed people to avoid terrible {#blank#}1{#/blank#} (crowd) on the roads above as they travelled to and {#blank#}2{#/blank#} work. It took three years to complete and was built using an interesting method. This included digging up the road, {#blank#}3{#/blank#}(lay) the track and then building a strong roof over{#blank#}4{#/blank#} top. When all those had been done, the road surface was replaced.

    Steam engines {#blank#}5{#/blank#}(use) to pull the carriages and it must have been{#blank#}6{#/blank#}(fair) unpleasant for the passsengers, with all the smoke and noise. However, the railway quickly proved to be a great success and within six months, more than 25,000 people were using{#blank#}7{#/blank#}every day.

    Later, engineers {#blank#}8{#/blank#}(manage) to construct railways in a system of deep tunnels (隧道）, which became known as the Tube. This development was only possible with the {#blank#}9{#/blank#}(introduce) of electric-powered engines and lifts. The central London Railway was one of the most {#blank#}10{#/blank#}(success) of these new lines, and was opened in 1900. It had white-painted tunnels and bright red carriages, and proved extremely popular with the public.

—Not yet. It {#blank#}1{#/blank#}(paint)at present.

    The dog, later {#blank#}1{#/blank#} (name) Arthur, came up to a Swedish team while the members were sharing a meal in front of a 20_mile race stage through the rough area in Ecuador. One of the {#blank#}2{#/blank#} (athlete), Mikael Lindnord, took pity on the dog wandering near their table and fed {#blank#}3{#/blank#} meatball to it. And that meatball made them friends for life, as far as Arthur was concerned.

The extreme sport of adventure racing includes biking, hiking, and boating that challenge even the {#blank#}4{#/blank#} (strong) humans. Imagine a dirty stray（迷失的）dog trying {#blank#}5{#/blank#} (keep ) up. But Arthur {#blank#}6{#/blank#} (do) keep up. The dog followed the team as they got up to leave. {#blank#}7{#/blank#} (actual), he never stopped following them—swimming alongside the boat of the team, and taking on muddy(泥泞的)slopes when the team hiked.

    Arthur stayed alongside the team for the rest of the {#blank#}8{#/blank#} (compete),but not without cost to his well—being. The dog needed doctor's attention after the six-day race was finished {#blank#}9{#/blank#} the team helped Arthur as much as they could during the event. Arthur's hard work paid off: Lindnord decided to adopt(收养) the dog {#blank#}10{#/blank#} brought him back to Sweden.

    I went backpacking through Italy many {#blank#}1{#/blank#} (summer) ago. There I had the opportunity to taste some of the best cherries in my life. I remember {#blank#}2{#/blank#} (ask) the fruit farmer, “ {#blank#}3{#/blank#}are these cherries from?” And she said they were from an orchard (果园) only twelve miles away. So I {#blank#}4{#/blank#}(jump) in my car and hit the road. At the orchard, and old man named Leopoldo, whose face was  {#blank#}5{#/blank#}(beautiful) lined, told the beautiful story of a beautiful life well lived. He offered me all kinds  {#blank#}6{#/blank#}cherries from the orchard and they were {#blank#}7{#/blank#} (amaze). And that's when I realized something: the world is inspiring. The fruit is inspiring, if you let {#blank#}8{#/blank#} be. As the sun began to set, I said goodbye to Leopoldo {#blank#}9{#/blank#}his lovely family. My mind {#blank#}10{#/blank#}(fill) with berries then, and I was thinking about being a fruit farmer on my way home.

    There once was a forest filled with happy animals. One day a raccoon(浣熊) found some socks left behind by picnickers, and {#blank#}1{#/blank#} (decide) to wear them. They fitted so well, and felt so {#blank#}2{#/blank#} (comfort), that he kept them on. He spent his days {#blank#}3{#/blank#} (walk) through the forest in his new socks.

    Other animals became envious of the raccoon's new look and followed his trend. First it was squirrels in {#blank#}4{#/blank#} (shirt), then rabbits {#blank#}5{#/blank#} hats on, and finally birds wearing underpants!

    Doctor Bear,{#blank#}6{#/blank#} forest physician, disapproved and tried to warn the clothes-wearers. But no one listened. Instead, they urged him to follow the {#blank#}7{#/blank#} (late) trend too.

    Soon, the problems started. The squirrel caught his shirt on a branch and crashed to the ground. The rabbit tried entering his hole while wearing his hat and got stuck. Even the raccoon, thanks to his {#blank#}8{#/blank#} (bright) coloured socks, slipped into the river and almost died.

    When the {#blank#}9{#/blank#} (injure) animals came to see Doctor Bear, he told them,“Your clothes are killing you. You don't need them.”

    Those {#blank#}10{#/blank#} listened to the doctor's advice finally understood they didn't need clothes. They'd only started wearing clothes to make others envy them.

    To celebrate his sixtieth birthday, Devon's father organized a family vacationto Alaska. On the long northward flight, Devon {#blank#}1{#/blank#} (think) that she would have preferred a tropical (热带的) island. But she changed her mind on their third day, {#blank#}2{#/blank#} they hiked out onto Root Glacier (冰川) with a guide. Standing inside an ice cave beneath the glacier's surface, Devon stared in amazement at the glowing neon (氖) blue of the glacial ice surrounding her. This was {#blank#}3{#/blank#} (definite) worth the trip!