1. Backpacks 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 running, and maybe even light your way home. 3. The backpacks electricity-creating powers depend on springs used to hang a 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 movements of the pack to rotary motions of an electrical generator, producing up to 7.4 watts 5. The backpack could be especially useful for soldiers, scientists, mountaineers, 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 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! 1. Backpacks are convenient because___________. B) They can hold as many things as you want to carry. D) You do not have to carry things with you. A) It produces electricity for electronic devices while the wearer walks. C) It is small and convenient. 3. The word springs in Paragraph 3 means ____________. B) the season of the year, occurring between winter and summer. D) a length of metal wound around, which returns to its original shape after being pushed. A) To make the backpack more comfortable for the wearer. C) To test the advantage of the backpack. 5. What is implied in if you do get one eventually, just make sure to look both ways before crossing the street! B) Enjoying electronic devices while walking may invite traffic accidents. 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，但总有一天会走进我们的生活，为我们带来更多便利的。 2. Backpacks are convenient because___________. 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 D) You do not have to carry things with you. 你不用随身携带东西了。 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, 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（你回家的路）. 3．看第二题： A) It produces electricity for electronic devices（设施） while the wearer walks. B) It can be used as cell phones, GPS in the military actions or field studies. C) It is small and convenient. 它又小又方便。 题目的意思：由Lawrence和他的同事所发明的背包最重要的特征是什么？这是一道细节题。一起读第二段： 通过对这一段的学习，我们知道了这种背包最重要的特性就是：当背上它的人一边走就会一边产生电能。所以答案为A。 4. The word springs in Paragraph 3 means ____________. B) the season of the year, occurring between winter and summer.一年中的一个季节，介于冬季和夏季之间（春天） D) a length of metal wound around, which returns to its original shape after being pushed. 来回绕的一段金属，在被挤压后能回复它的原形（弹簧） The backpacks electricity-creating（产生的） powers （能量）depend on springs used（被用来） to hang（挂） a cloth pack（布包） from its metal frame（金属框架）. The frame sits（搁、放） against （倚、靠）the wearers back, and the whole pack（包） moves up and down（上下移动） as（当） the person walks. A gear （）mechanism（机械装置） converts（转化） vertical（垂直的） movements of the pack to rotary （旋转的）motions（运动） of an electrical generator（电子发电机）, producing up to（多达） 7.4 watts（瓦，电功率单位）. 5. According to Paragraph 4, what does Rome plan to do? B) To put the backpack on the market. 为了把背包推向市场 D) To promote the backpack in a newspaper or on television.为了在报纸上或电视上促销背包。 Unexpectedly（出人意料的是）, tests （实验）showed that wearers of the new backpack alter（同义词change, 改变）their gaits（步态，步法） in response to（响应、配合）the packs oscillations（摆动） so that （引导目的状语从句，表示为了）they carry（携带） loads（重物、重量） more comfortably and with less effort（更少的力量） than they do ordinary（普通的） backpacks. Because of that surprising（令人吃惊的） advantage（优点、优势）, Rome plans（动词，计划） to commercialize（使。。。商业化） both electric（电子的） and non-electric（非电子的） versions （种类）of the backpack. 所以，答案是B。 6. What is implied in if you do get one eventually, just make sure to look both ways before crossing the street! B) Enjoying electronic devices while walking may invite traffic accidents. C) It is not possible for you to get such a backpack.你不可能得到这样一个背包。 题目的意思是：如果你终于得到这样的背包，过马路时一定要两面都看看。这句话根据提问方式是推理题：即，根据文章已有的信息或文章的含义进行归纳和总结；或推断文章的引申、暗示的含义； The backpack could be especially（尤其） useful（有用的） for soldiers（士兵）, scientists, mountaineers（登山运动员）, and emergency workers （对紧急情况进行处理的工作人员）who typically（特别地、独特地） carry heavy backpacks. For the rest of us（对于我们其余人而言）, power-generating backpacks could make it （形式宾语）possible to walk, play video games（玩游戏）, watch TV, and listen to music, all at the same time（同时间进行）. Electricity-generating packs arent on the market （还没有出现在市场上）yet, but 5.if you do get one eventually, just make sure to look both ways before crossing the street! 小结：至此为止，这篇文章我就已经顺利完成了。最后我总结一下做阅读的需要注意的地方： 其次，拿到一篇文章不要着急做题，借助标题，很快将文章浏览一遍； 第四，解题时要将题目看清，千万别粗心大意，否则就一失足成千古恨。如：题干中的NOT, EXCEPT, BESIDES等字眼一定看明白，必要时可用笔作出记号时刻提醒你要小心。 最后，平时做阅读题建议一口气做完，最好能有个时间的概念。
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