1 . Suppose you find a bright yellow bike on a street corner in the city. You hop on (跨上) it and _______. But wait — isn’t this stealing? No, it isn’t._______ shouts, “Stop! Thief!” That is _______ this free ride is just fine with the city.

You _______ find hundreds of free yellow bikes in some US cities. The idea began in Portland, Oregon, in 1994. People saw a need for _______ transportation, and they wanted to help _______ pollution. So, to get citizens (市民)_______ their cars and onto pollution-free bikes, they _______ the Yellow Bike Project.

The _______ 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 ________ to school. Then, they leave the bike for the ________ rider. There have been times when bikes have been stolen, but most people ________ the rules, because they think it is not wise to ________ the bike that’s already free.

Portland’s ________ was quickly loved by a lot of people. Within two years of its starts, similar programs were ________ in cities in six other states.

3 . A young Mexican-born girl _________ for what was right and achieved the unexpected. Her name is Erica Fernandez. Erica was born and _________ in Michoacan. Mexico until the age of 12. At that time, her family _________ to an American agriculture city. Oxnand, California to make a fortune. One of the biggest _________ at the time was that neither her parents nor herself could speak English. Therefore, she worked hard at English for several years and _________ from Chicago University with good grades._________, a light life and racial prejudice (歧视) forced them to _________ Mexico, where she started her new career.

One day Erica was invited to attend a meeting as a translator. She _________ got news that the richest mining company in the world would build a chemical factory in her hometown. The reason why they chose Michoacan was that this _________ was refused in those developed areas. It would cause 280 tens of air __________ each year, not only affecting the __________ of Oxnard settlers, but also their harvests. Some local people were __________ to celebrate for more chances of making money because they didn’t know the truth. Seeing that her hometown was going to be __________, Erica decided to do something about it. Erica joined forces with __________ environmental protection organizations, and reached out to the media to report this unfairness to __________ this programme from going through. She also __________ more than 250 high school students marching on the street. All her efforts became __________ after her exciting speech. The project didn’t go through. It was Erica’s courage and determination that __________ their success.

Erica saved her hometown from a bad __________ at her young age, but most __________ she is teaching us how to live life in the right way: Care about our homeland and we can make a difference!