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1、大家论坛职称英语理工类C级阅读理解复习资料(1)Electric Backpack1. Backpacks(背包) are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you dont mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone
2、running, and maybe even light your way home.2. Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia(费城美国宾夕法尼亚州东南部港市) and the Marine Biological Laboratory in Woods Hole(美国马萨诸塞州的一个渔村，也是许多重要研究机构所在地), Mass(Massachusetts 的缩写：马萨诸塞州，美国东北部的一个州)have invented a backpack that
3、 makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS)(全球定位系统) receivers(接收机), night-vision goggles(夜视镜), and other battery-powered devic
4、es to get around and do their work. The backpacks electricity-generating feature could dramatically reduce the amount of a wearers load now devoted to spare batteries, report Rome and his colleagues in the Sept. 9 Science6.3. The backpacks electricity-creating powers depend on springs used to hang a
5、 cloth pack from its metal frame. The frame sits against the wearers back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical(垂直的) movements of the pack to rotary (旋转的)motions of an electrical generator, producing up to 7.4 watts(瓦(特).4. Unexpectedly, tests
6、showed that wearers of the new backpack alter their gaits(步态，步法) in response to the packs oscillations(摆动) so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize(商业化) both electric and non-elec
7、tric versions of the backpack.5. The backpack could be especially useful for soldiers, scientists, mountaineers(登山运动员), and emergency workers who typically carry heavy backpacks. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to
8、music, all at the same time. Electricity-generating packs arent on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!Questions:1. Backpacks are convenient because_.A) They can be very largeB) They can hold as many things as you want to carr
9、y.C) Your hands are freed to do other things.D) You do not have to carry things with you.2. What is the most important feature of the backpack invented by Lawrence C. Rome and his colleagues?A) It produces electricity for electronic devices while the wearer walks.B) It can be used as cell phones, GP
10、S in the military actions or field studies.C) It is small and convenient.D) It is light and easy to carry.3. The word “springs” in Paragraph 3 means _.A) a small stream of water flowing naturally from the earth.B) the season of the year, occurring between winter and summer.C) the act or an instance
11、of jumping or leaping.D) a length of metal wound around, which returns to its original shape after being pushed.4. According to Paragraph 4, what does Rome plan to do?A) To make the backpack more comfortable for the wearer.B) To put the backpack on the market.C) To test the advantage of the backpack
12、.D) To promote the backpack in a newspaper or on television.5. What is implied in “if you do get one eventually, just make sure to look both ways before crossing the street!”A) You will be too excited to watch the traffic.B) Enjoying electronic devices while walking may invite traffic accidents.C) I
13、t is not possible for you to get such a backpack.D) It is wise of you to have such a backpack.文章详解：1. 首先解读标题：Electric(这是理工类阅读中经常出现的单词，因此含义要记住：电子的)Backpack(合成词：back是后背的意思，pack是包、包裹的意思，因此backpack就是背包。)背包是大家日常生活中很熟悉的东西，但电子背包没听说过。带着一份好奇，通读一遍原文，大致了解，电子书包除了大家知道的普通功能之外，科学家还打算让它具有更多更新的功能。虽然现在市场上还买不到，但总有一天会走
14、进我们的生活，为我们带来更多便利的。2.接下来，在正式看文章每句话之前，先浏览所设置的问题，这样一方面可以更清楚地了解文章的脉络，另一方面一会儿精读时，也比较容易在相关段落找到答案。通过看五个问题，我们知道，它们的答案就出现在文章相应的五个段落里，而且以细节题居多。所以，我们就看一题，针对性地精读一段。先看问题1：1. Backpacks are convenient because_.A) They can be very large他们能够非常大B) They can hold as many things as you want to carry.你想带多少东西，背包就能装多少东西C)
15、Your hands are freed to do other things.你的双手能够被解放出来干其它事情D) You do not have to carry things with you. 你不用随身携带东西了。题目的意思是：背包很方便，是因为。标准的细节题形式：文章一开头，就提到Backpacks(背包) are convenient.所以，我们一起把第一段读完：They can hold(装) your books, your lunch, and a change of clothes(换洗衣服), leaving (留着)your hands free (自由的、空闲的)to do other things. Someday(有朝一日), if(如果) you dont mind carrying (介意做某事，一般用mind doing sth)a heavy load(很重的东西), your backpacks might also power(动词，给。提供电能) your MP3 player(MP3播放机), keep(使) your cell phone (手机)running(运行、运转), and maybe even light(照亮) your way home(你回
