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　　2017年广东省广州市高考英语一模试卷
　　第二部分 阅读理解（共两节，满分30分）第一节 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑．
　　21．Inside the Rain Room
　　The Rain Room has arrived and local art lovers are taking notice．Is it worth the wait？Yes，I assure you it is．Once inside，visitors find a long，dark room with a high ceiling．A single bright light shines through heavy rain falling around visitors．The mist．The damp air．The noise．It feels like a mighty storm is pouring down．But the storm is inside．And visitors aren't getting wet．Instead，visitors wander in awe，admiring the rain and the artists who created it．
　　The Rain Room was created to highlight the connection between humans，nature and technology．With a tracking system that senses movement and stops the rain wherever visitors move，it does just that．Light and sound produce an experience that feels both natural and foreign．The exhibit is moving on to Atlanta next month．I urge you to visit before then．It's time to experience the Rain Room for yourself!
　　Welcome to the Rain Room
　　•The Rain Room features falling water．Please be aware you may get slightly wet．However，visitors wearing raincoats will be turned away．
　　•This exhibit features advanced technology．To ensure its effectiveness，please avoid wearing dark or reflective clothing．
　　•Visitors are welcome to take photographs of the exhibit．
　　•Children must be accompanied by an adult．
　　•For the convenience of all guests，visits are limited to 10minutes．
　　21．What's the purpose of the text？　　
　　A．To attract visitors to a new art exhibit．
　　B．To explain how an exhibit has been created．
　　C．To describe the technology used in the exhibit．
　　D．To promote the artists taking part in an exhibit．
　　22．What's the function of the exhibit's tracking system？　　
　　A．To keep visitors from getting wet．
　　B．To protect the exhibit from water damage．
　　C．To time how long visitors are in the room．
　　D．To count the number of visitors in the room．
　　23．What must you do when visiting the Rain Room？　　
　　A．Wear a raincoat．
　　B．Wear dark clothing．
　　C．Leave your camera outside．
　　D．Pass through within 10 minutes．
　　24．Dujiangyan is the oldest man﹣made water system in the world，and a wonder m the development of Chinese science．Built over 2，200 years ago in what is now Sichuan Province in Southwest China，this amazing engineering achievement is still used today to irrigate over 6，000 square kilometres of farmland，take away floodwater and provide water for 50cities m the province．
　　In ancient times，the region in which Dujiangyan now stands suffered from regular floods caused by overflow from the Minjiang River．To help the victims of the flooding，Li Bing，the region's governor，together with his son，decided to find a solution．They studied the problem and discovered that the river most often overflowed when winter snow at the top of the nearby Mount Yulei began to melt as the weather warmed．
　　The simplest fix was to build a dam，but this would have ruined the Minjiang River．So instead Li designed a series of channels built at different levels along Mount Yulei that would take away the floodwater while leaving the river flowing naturally．Better still，the extra water could be directed to the dry Chengdu Plain，making it suitable for farming．
　　Cutting the channels through the hard rocnt Yulei was a remarkable accomplishment as it was done long before the invention gunpowder and explosives．￡1Bing found another solution．He used a combin