2019年高中英语 unit 3 computers sectionⅰ warming up & reading—pre-reading教案（含解析）新人教版必修2.doc

Unit 3 ComputersMost kids have cellphones or tablets (平板) and are texting or using social media all the time. Experts say that parents should use apps to watch out for their children's online activities.According to a survey, 70 percent of U．S. teens carry cellphones, and Russ Warner, the CEO of Net Nanny, is in the business of protecting kids online. His best advice to parents is to know what is out there and to plan in advance.“Put a plan into place because kids like to feel protected，” Warner said. “They like to feel like Mom or Dad is helping.”According to another study, almost 90 percent of children have seen cyber bullying (网络欺凌) in the last year. However, Warner said only 50 percent of parents talk with kids about avoiding these experiences.“That means the other half don't and that's a problem，” he said.Warner often speaks to parent groups concerned about keeping their teens safe, “Oftentimes (时常地) if we can't control or we don't understand something, we avoid it and we can't do that anymore.”He said parents need to talk to their children about online danger, and then they need to use safety software. Parents should know who is trying to communicate with their children and what they are watching online.Warner added parents also need to understand phone settings (设置). iPhone settings come with restrictions (限制) that are easy to set. Parents can enable restrictions with a code that they know, and their child does not. Parents can also set phones to not allow apps to be downloaded without a passcode.Section_ⅠWarming Up & Reading — Pre­readingWHO AM I?Over time I have been changed quite a lot①. I began as a calculating② machine in France in 1642. Although I was young I could simplify③ difficult sums④. I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage⑤. After I was programmed⑥ by an operator⑦ who used cards with holes, I could “think” logically⑧ and produce an answer quicker than any person. At that time it was considered a technological⑨ revolution⑩ and the start of my “artificial⑪ intelligence⑫”. In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a “universal machine” to solve any difficult mathematical problem⑬. From then on⑭， I grew rapidly both in size and in brainpower. By the 1940s I had grown as large as a room⑮， and I wondered if I would grow any⑯ larger. However, this reality⑰ also worried my designers. As time went by⑱， I was made smaller. First as a PC (personal⑲ computer) and then as a laptop, I have been used in offices and homes since the 1970s.①over time经过漫长的时间；随着时间的推移，在句中作状语，句子用现在完成时。

②calculate/'kælkjʊleIt/vt.计算calculator/'kælkjʊleItə/n. [C]计算器calculation n. [U]计算③simplify/'sImplIfaI/vt.简化④sum/sʌm/n.总数；算术题；金额a sum of money 一笔钱⑤此句使用了固定句式：It takes＋时间段＋before ...“过了多久才……”⑥program v．编写程序 n．(计算机)程序programmer/'prəʊɡræmə/n.程序员；程序师⑦operator/'ɒpəreItə/n.(电脑)操作员；接线员⑧logically/'lɒdʒIklI/adv.逻辑上；合逻辑地；有条理地logical/'lɒdʒIkl/adj.合逻辑的；合情理的⑨technological/ˌteknə'lɒdʒIkl/adj.科技的technology/tek'nɒlədʒI/n.工艺；科技；技术⑩revolution/ˌrevə'luːʃn/n.革命technological revolution 技术革命⑪artificial/ˌɑːtI'fIʃl/adj.人造的；假的⑫intelligence/In'telIdʒəns/n.智力；聪明；智能artificial intelligence 人工智能⑬solve/sɒlv/vt.解决；解答mathematical/ˌmæθə'mætIkl/adj.数学的how引导宾语从句；to solve ...为不定式短语作目的状语。

⑭from ... on 从……时起⑮“by＋过去时间”作状语，句子通常用过去完成时⑯any为程度副词，修饰比较级⑰reality/rI'ælətI/n.真实；事实；现实in reality事实上；实际上⑱as引导时间状语从句⑲personal/'pɜːsənl/adj.私人的；个人的；亲自的personally/'pɜːsənəlI/adv.就个人而言；亲自我是谁？[第1段译文]经过一段时间我已经被改变了很多1642年我在法国诞生时是一台计算机器尽管当时我很年轻，但是我能简化一些复杂的数学题我发育缓慢，差不多到了两百年之后，查尔斯·巴比奇才把我制成了一台分析机在操作员用穿孔卡为我设计程序后，我能够进行逻辑“思考”，并且能够比任何人更快地算出答案那时这被当作一次技术革命，也是我“人工智能”的开始在1936年，我真正的父亲艾伦·图灵写了一本书，讲述了怎样使我成为一台“通用机器”来解决任何数学难题从那时起，我在体积和脑容量方面迅速成长到20世纪40年代，我已经长得像一间屋子那么大，我不知道是否还会长得更大但是，这个现实也使得我的设计者很担心随着时间的推移，我被做得更小了自20世纪70年代以来，我一直被用在办公室和家庭里，先是用作个人电脑，后来又做成便携式电脑。

These changes only became possible as my memory improved. First it was stored in tubes⑳， then on transistors and later on very small chips. As a result I totally changed my shape. As I have grown older I have also grown smaller. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told！ And my memory became so large that even I couldn't believe it! But I was always so lonely standing there by myself, until in the early 1960s they gave me a family connected by a network. I was able to share my knowledge with others through the World Wide Web.Since the 1970s many new applications have been found for me. I have become very important in communication, finance and trade. I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and Mars. Anyhow， my goal is to provide humans with a life of high quality. I am now truly filled with happiness that I am a。