2019版一轮复习英语外研版：单元检测十六SandstormsinAsia.doc.pdf

单元检测（十六）Sandstorms in Asia I ?阅读理解 A sandstorm refers to a high amount of wind occurring in sandy areas, usually in deserts where the wind speed is able to lift the top layer of sand from the ground, and push it in every direction. The sand involved in the sandstorm can reach heights of about 3.05m 15.24m. It is very dangerous to experience a sandstorm. Sand can get into the nose, eyes，mouth and lungs. If you happen to be caught in a sandstorm, you must protect yourself by wearing masks, scarves and so on. If you“ re driving when such a storm approaches it“ s advised that you pull off the road, since it's difficult to continue driving. This is also important since vehicles can fail in during sandstorms and you could end up stuck on the road. Most sandstorms occur in spring, and during the daytime. Many of the areas around the Persian Gulf and the Sahara Desert are associated with the most serious storms. Since if s a natural phenomenon, it can“ t be entirely controlled. In areas that are natural desert regions, you can 11 always prevent a sandstorm. There“ s much evidence that the planet Mars has dust storms, and clearly, no human intervention （介入）is responsible for such. Though jj faQ giovjyholQana dunes ana aestroy frops. 2_§andstonq_jg noJwithout benefit. 语篇解读：本文介绍了沙尘暴常发生的时间、地点和基本状况以及如何在沙尘暴中自我保护的 一些建议。 1.If you“ re driving in a sandstorm, you，d better _ . A.stop your car in the middle of the road B? continue to make your way C. stop and ask for help D. stop your car on the side of the road 解析：选D 细节理解题。根据第三段第一句中的“If you' re driving when such a storm approaches, it's advised that you pull off the road ?”可知，如果你开车时遇到沙尘暴，你最 好 把车停在路边，pull off the road w 把车停在路边”。故选D。 2.The underlined sentence shows that, anyway, sandstorms are _ C. harmful D powerful 解析：选A 推理判断题。画线句表明，虽然沙尘暴能移动沙丘并毁坏农作物，但它不是毫无益 处的。注意 ua sandstorm is not without benefif9 表示“不无裨益” , 是双重否定 表示青定意义。故选 A。 3.According to the writer, a sandstorm _ ? A.is the result of human activities B.can be prevented C.can t completely disappear on the earth D.can“ t be forecast 解析：选c 推理判断题。根据最后一段可知，作者认为沙尘暴是一种自然现象，不能完全被控 制，也就不会完全消失，并且它也不是人为的后果。故选C。 B In Kenya, blind students and those with poor eyesight were still using Braille （布拉耶盲文） books for th&r studies until recently. Their books used the Braille system of raised dots to represent words and numbers. Those with limited or no eyesight can “read” by touching those markings. But Kenyan schools for the blind are now beginning to use technology that provides material in an audible （听得见的）form. Seventeen-year-old Lucas Mwanzia is visually impaired （受损的） .For the past two years, he has been attending computer classes at the Thika School for the Blind. He said，“The technology has opened doors that once were closed. Braille books arc costly and you have to spend a lot of money buying one. With computers, the books are available at little or no cost. So we can download the books to read and when we finish reading we just need to close the program? 5 Zachary Muasya was born blind. He is now one of the school's teachers. He has been teaching the students how to use the technology for about two years now. “The assistive technology equips the learners with many skills that really make them independent in life. They can read books, magazines and newspapers by themselves?” The school started using assistive technology six years ago. It enables blind and visually-impaired students to get information from computers and iPads. The assistive technology costs $ 1000 to set up. But a non-governmental organization called InAbie has provided it for the schools at no cost. Four out of Kenya“ s 11 schools for the blind are using the technology. InAbie says it will provide the financing for the remaining schools to join the effort. Peter Okeyo, the program manager at InAbie, says blind students using the technology may still have difficulty when they move to higher education. Students who have used the technology up through high school might not have it at the university they attend. Those students might have difficulty if they have to go back to Braille. 语篇解读：本文是一篇说明文。肯尼亚盲人学生以及视力不佳者可以不用盲文书籍来学习了， 因为科技为肯尼亚盲人学生提供了新的工具。 4 Compared with Braille books, the books online _ ? A.offer less help to students B ? are more difficult to get C- cost less or no money D. are harder to understand 解析：选C 细节理解题。根据第二段中的“Braille books are costly and you have to spend a lot of money buying one. With computers, the books are available at little or no cost.”告诉我们普通盲 文书籍非常昂贵，需要花很多钱去购买。而网络有声书籍很便宜甚至免费。故选C。 5 Mwanzia and Muasya were mentioned mainly to tell readers _ ? A.students can benefit a lot from the new technology B.Braille books are more suitable for the blind C.more help will be provided for students in Kenya D.students in Africa are fond of reading books 解析：选A 推理判断题。根据第二段中的“The technology has opened doors that once were closed?“ 以及“The assistive technology equips the learners with many skills that really make them independent in 告诉我们该技术打开了曾被关闭的大门。辅助技术让学习者 具备多种技能，这真正使得他们在生活中独立。故选A。 6.Whaf s Peter Okeyo , s attitude towards the new technology? A ? Indifferent.B ? Supportive. C. Sympathetic. D? Worried. 解析：选D 推理判断题。根据第三段中Peter Okeyo所说的话告诉我们使用该项技术一路读完 高中的学生在大学里可能没法再使用该技术。如果让这些学生重新回去使用盲文可能会面临很多困 难。故选D。 7.What can we learn from the last paragraph? A.The technology will be set up in Africa at a low price. B.More schools in Kenya will use the new technology. C.Students at university can use the technology now. D.The technology will become less popular in the future. 解析：选B 细节理解题。根据最后一段中的 w Four out of Kenya ， s . join the effort. 告诉我们 肯尼亚11所盲人学校中的4所正在使用该技术。InAble组织表示，该组织将为剩余学校提供资金加 入进来。故选B。 II ?阅读七选五 Tough teeth Spider （蜘蛛）silk, which is five times stronger than steel, no longer holds the record as the strongest material found in nature. Scientists have discovered that the teeth of a limpet （帽贝）are made of even tougher material. “Spider silk has been winning this competition for a long time, ” Asa Barber, an engineer at the University of Portsmouth, England, who led the study said “ 1 ” A limpet has about a hundred teeth，each about 1 millimeter （0.04 inches） long. 2 To find out just how tough limpet teeth are, Barber's team examined pieces of the limpets' teeth to test their tensile strength 一the resistance of a material to breaking when stretched. The scientists learned that the material that makes up limpet teeth can withstand a pulling force comparable to that of a rope lifting about 1,500 kilograms （3,300 pounds） of sugar. 3 They contain fibers made from a combination of goethite and chitin. _4_ Chitin, on the other hand, is stretchy （有弹性的） ? Mix the two together, and you get a material that's both hard and tough. In fact, limpet teeth are 10 percent stronger than spider silk. Scientists have had a hard time trying to artificially produce spiders，sticky web material in a lab, but Barber believes it will be easier to recreate limpet teeth. _5_ “I think this is going to be a much greater opportunity to manufacture materials that have high strength, ” he says. A. What makes limpet teeth so strong? B- Though hard，goethite breaks easily. C. A limpet has a tongue covered with tiny teeth. D- It uses them to get its preferred meal off rocks. E.But spiders use their silk to make webs or other structures. F.I was surprised and excited that limpet teeth beat the winner G.That way people too will be able to benefit from the superstrong materiaL 语篇解读：本文是一篇说明文。文章主要介绍了帽贝坚硬的牙齿。 1?选F F 项与上文的“Spider silk has been winning this competition for a long time“ 相呼应。 2?选D D 项与上文的“A limpet has about a hundred teeth”相呼应，D 项中的them 指代上文 中的“a hundred teeth“。 3.选A A项起承上启下的作用：上文讲帽贝的牙齿承重力强，下文解释原因。 4?选B B项与上下文相呼应。构成帽贝牙齿的两种成分一种坚硬，另一种有弹性； 二者结合使帽贝的牙齿既硬又坚韧。 5?选G G项与上下文相呼应。再造帽贝的牙齿这种材质相对容易些，这会使人们从 这种超硬的材料中受益。