1 . In a bustling city in Arizona stood a high school where most of the students live in poverty. Among them were four sons of Mexican immigrants, Juan, Oscar, Luis, and Alfredo. These boys, coming from ________ backgrounds, often found themselves overlooked and underestimated. Bonded by fate and friendship, they shared a common passion for ________. Two science teachers there decided to enter their high school into a complicated ________ robotics competition sponsored by the NASA and the Naval Research. Excited for the news, these four boys signed up for the competition.

With enthusiasm and energy, they started calling mechanical engineers for design help. They were ________ that these kinds of robots require glass syntactic flotation foam, a type of floating material used in various marine applications.________ money, all they could afford was some PVC pipes and duct tape (强力胶布).________, they searched the city for various spare parts, gathering whatever they could to bring their vision to life. With the teachers’ guidance and encouragement, they ________ together a robot with no more than metal and wires.

As they worked on their robot, the boys also faced personal challenges. Juan struggled with the weight of family responsibilities; Oscar ________ a deep-seated fear of failure; Luis’s heart ached from the constant peers’ mockery (嘲笑) for his ________ accent, and Alfredo longed for acceptance and belonging.________ these obstacles, they persevered, leaning on each other for support and inspiration.

After a few test runs of their robot, they piled into a second-hand van to head to the competition. Upon entering the main pool area, they noticed the college teams wearing matching outfits, with robots sponsored by big companies. Feeling a bit nervous, the boys put the robot in the water for a test run.________, the PVC didn’t hold up, causing the robot to leak and sink.

However, instead of letting this ________ ruin their spirits, the boys put their heads together and came up with a brilliant solution. 12 hours later, armed with 8 super-absorbent pads to plug the leak, the robot was ________ into the pool again. This time, their robot performed admirably. Gliding gracefully through the waters, it navigated the course with precision and speed,________ the judges and audience alike. This underwater robot, a symbol of their determination and ________, conquered the waters, defeated engineering powerhouse MIT and ranked first in the country. This was not just a win for those four but a victory for every underdog with a dream.