2019秋外研版九年级英语上册同步测试：Module 5 Unit 2　If you ever go to London, make sure you visit the Science Museum

Unit 2　If you ever go to London, make sure you visit the Science Museum. 基础闯关全练 拓展训练 完形填空 　　 Suppose you find a bright yellow bike on a street corner in the city. You hop on (跨上) it and 　1　. But wait—isn’t this stealing? No, it isn’t. 　2　 shouts, “Stop! Thief!” That is 　3　 this free ride is just fine with the city.   You　4　 find hundreds of free yellow bikes in some US cities. The idea began in Portland, Oregon, in 1994. People saw a need for 　5　 transportation, and they wanted to help 　6　pollution. So, to get citizens(市民) 　7　 their cars and onto pollution-free bikes, they 　8　 the Yellow Bike Project.  The　9　 bikes are painted bright yellow and placed throughout the city. People can hop on the yellow bike and ride to run errands(短程差事), to work 　10　 to school. Then, they leave the bike for the 　11　 rider. There have been times when bikes have been stolen, but most people 　12　 the rules, because they think it is not wise to 　13　 the bike that’s already free.  Portland’s 　14　 was quickl