练38 科普知识与现代技术(二)(语境提能)-【勤径学升】2024高考一轮复习英语考点增分练

人与社会回 练38科普知识与现代技术（二）（语境提能） ,对应答案P210 I.阅读理解 disks was normal metal,while the other was (山西一模)If you're trying to build the same material with the special etching something that won't sink,making it out of technique applied.As you know,the metal seems like a terrible idea.We make boats superhydrophobic metal disk refused to sink, and ships out of metal because it's strong and even when pushed deep beneath the water. lasts a long time,but it weighs a lot and,if Perhaps even more important for real- something goes wrong, there's nothing world use cases,the metal keeps its water- stopping it from sinking to the bottom. repelling properties even when damaged.The Researchers from the University of researchers drilled several holes in the disk, Rochester have come up with a potential revealing that it still floated on the surface even solution.It's a metal that absolutely hates when its structural integrity was damaged.This water,strongly repelling (it and creating proves that metal etched in such a way could be pockets of air that allow the metal to float useful in the manufacturing of boats and ships, under just about any circumstance. Its allowing them to remain afloat even when inventors believe it could revolutionize ship damaged. design and create truly unsinkable boats. 1.What's the feature of the special metal? The secret is a special pattern that is A.It repels air. etched(蚀刻)into the surface and that traps B.It looks like a fire ant. air and prevents water from making contact, C.It is unsinkable. pushing it away.The team says this D.Its surface is elegant. superhydrophobic(超疏水的)etching 2.What does the underlined word "buoyant"in technique was inspired by the natural world. Paragraph 4 mean? The bodies of fire ants are hydrophobie,and A.Floating. B.Creative. spiders that make underwater webs use their C.Splendid. D.Artificial. bodies to trap air and carry them beneath the 3.How did the researchers carry out the surface. experiment? “The essential insight is that