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Hello, everyone!

    Welcome to Enshi. I'm your guide, LiXia. I'm glad to serve you. I'm sure that you will have fun{#blank#}1{#/blank#}the beautiful city surrounded by green mountains. Today, you will have a walking {#blank#}2{#/blank#}. You'll enjoy not only the {#blank#}3{#/blank#}of nature but also all kinds of delicious food. From now on, You will have four {#blank#}4{#/blank#}time to play and take photos. Attention, please! Pay attention to{#blank#}5{#/blank#}when you lose yourselves in lovely scenery.

    One evening Nasreddin heard a noise in his garden and looked out of the window. A white ox had got into the garden and was eating his vegetables. Nasreddin at once took his{#blank#}1{#/blank#}, ran out and chased the ox, but he was too old to catch it. When he got back to his garden, he found that the ox had ruined(毁坏)most of his precious vegetables.

    The next morning, while he was walking in the street near his house, he saw cart(运货车)with two white oxen which{#blank#}2{#/blank#}the one that had eaten his vegetables very much. He was carrying his stick with him, so he at once began to beat the two oxen with it. As neither of them looked more like the ox that had eaten his vegetables than the other, he beat{#blank#}3{#/blank#}of them equally hard. The owner of the oxen and the cart was drinking coffee in a nearby coffee-house. When he saw what Nasreddin was doing to his animals, he{#blank#}4{#/blank#}out and shouted, "What are you doing? What have those poor animals done to you for you to beat them like that?" "You keep out of this!" Nasreddin shouted back. This is a matter between me and one of these two oxen. He knows very well why I am beating him!"

    Free energy is everywhere around us. There are many ways to make and collect energy from{#blank#}1{#/blank#}sources(来源)like the sun, wind, water, etc. But people always make things difficult by not using these sources of energy. In the last few years there have been a great number of new ideas for generating(产生)energy. People suddenly realized that everyday things can be a source of energy. For example, riding a bike running or just{#blank#}2{#/blank#}, ate. But, is there anything else that can be used for collecting energy? We{#blank#}3{#/blank#}have to change our way of thinking if we want to change the world.

    So comes the idea of solar(太阳能)roadways. Are they the road of future? Why don't we use them for collecting energy?

    The US Department of Transportation{#blank#}4{#/blank#}$100. 000 to Solar Roadways to build the first ever Solar Road.