Day 4-冲刺2021年中考英语完形填空提分必练之科普知识与现代技术

Day 4 A Take a piece of hair from your head. Ouch! It may be long, but it’s not wide. Three scientists spent over 30 years 1 a kind of machine. This kind of machine is about a thousand times 2 than the width of one piece of your hair. These machines are 3 small that they can only be seen under a microscope(显微镜)! They 4 nanomachines(纳米机器). Because of their hard work, the three scientists 5 the 2016 Nobel Prize in Chemistry. They are all Europeans. Sir J. Fraser Stoddart, one of the scientists, told reporters that he thanked hundreds of other scientists from 24 different countries for helping make this prize 6 . He said he once brought a chocolate Nobel Prize to his daughter from a trip to Stockholm. He expected 7 a real one someday. What are nanomachines good for? Scientists believe that 8 the future, nanomachines can help deliver(传送) medicines inside a person’s body, or take away things that are making us sick. Mr. Feringa compared 9