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1、 Unit 3 ComputersIn a way computers can be considered a technological revolution. Because they have “artificial intelligence”， they can simplify difficult sums, “think” logically and solve any difficult mathematical problem. With the development of the network, computers have become very important i
2、n communication, finance and trade, and people all over the world can share their knowledge with others through the World Wide Web. Nowadays boys and girls use their mobile phones to surf the Internet. In order to explore the moon and Mars, computers have already been put into space rockets. In a wo
3、rd, computers can nearly deal with most problems in life. With the help of computers, the goal of human race will be turned into reality.However, just as a saying goes, “Every coin has two sides.” Personally, if you dont use computers properly, something uncomfortable will happen. For example, compu
4、ter games programmed by operators are so wonderful that a lot of young people love them very much. They even play the games day and night without going to school. As a result, they failed in their lessons. Sometimes if you download something, viruses which can make your computer break down will aris
5、e.Anyhow, if you have a computer, your life will be filled with happiness.在某种程度上电脑可以被看作是一次技术革命。因为电脑有“人工智能”，因此它们能够简化复杂的算数题，逻辑“思考”，解决任何数学难题。随着网络的发展，电脑已经在通讯、金融和贸易方面变得非常重要。世界各地的人们可以通过万维网与其他人分享他们的知识。如今少男少女们用移动手机上网冲浪。为了探索月球和火星，已经在太空火箭上安装上了电脑。总之，电脑几乎能够处理生活中的大部分难题。在电脑的帮助下，人类的目标将会变成现实。然而，正如一句谚语所说的：凡事都有利弊。我个人
6、认为，如果你使用电脑不恰当，不如意的事情就会发生。例如，由电脑操作员编程的电脑游戏是那样奇妙，以至于很多年轻人非常喜欢它们。他们甚至日日夜夜地玩电脑游戏，不去上学。结果，他们荒废了学业。有时如果你下载一些东西，能够导致电脑瘫痪的病毒就会出现。不管怎样，如果你有一台电脑，你的生活就会充满幸福。加餐练(一)完形阅读组合练.完形填空In the middle of town lived an old man. One day he _1_ his watch in his own store. It was _2_ to him because it was from his wife. After
7、 searching _3_ in the store for a long while, he _4_ to ask for help from a group of children playing outside the store. He _5_ them that the person who found it would be rewarded. _6_ this, the children hurried inside the store, went through and around the _7_ store, but still could not find the wa
8、tch.Soon the man felt hopeless and wanted to _8_. A little boy went up to him and asked for another _9_. The man looked at him and thought, “Why not? _10_， this kid looks sincere enough.” _11_ the man sent him back in the store. After a while the boy _12_ with the watch in his hand! The man was very
9、 _13_， and he asked the boy how he found it while the others had _14_. The boy replied, “I did nothing but sat on the ground and _15_. Then I heard the ticking (滴答声) of the watch and just looked for it in that _16_.”We usually think about our own needs, which cant bring peace into our mind. _17_ we
10、need to think about ourselves and keep peaceful for a while, which can produce a _18_ result. So allow a few minutes of _19_ to your mind every day, and see how it helps you deal with your work and make _20_ as you expect to!语篇解读：本文是夹叙夹议文。作者通过找表这样一个小故事告诉我们给自己的大脑片刻宁静非常重要。1A.lostBbrokeChid Dfixed解析：选A
11、由该段的“searching, found, still could not find the watch”可知，他把表弄“丢(lost)”了。2A.close BstrangeCsimilar Dimportant解析：选D由该空后的“because it was from his wife”可知，这块表对他来说非常“重要(important)”。3A.young and old Bheavy and lightChigh and low Dblack and white解析：选C这位老人在店里“上上下下(high and low)”找了个遍。4A.forgot BdecidedCagree
12、d Dlearned解析：选B由下文孩子们进店找表的行为可知，他“决定(decided)”让在店外玩耍的孩子们进来帮忙。5A.warned BtaughtCworried Dpromised解析：选D由该空后的“the person who found it would be rewarded”可知，他向孩子们“承诺(promised)”：谁找到了表，就有奖赏。6A.Hearing BSeeingCWearing DFeeling解析：选A“听到(Hearing)”他的承诺，孩子们冲进了店里。7A.big BdirtyCwhole Dbusy解析：选C孩子们为了找到表，搜遍了“整个(whole
13、)”店。8A.set off Bgive upCcalm down Dshow off解析：选B由该空前的“the man felt hopeless”可知，他想要“放弃(give up)”了。9A.date BreasonCmeeting Dchance解析：选D由下文的“the man sent him back in the store”可知，一个小男孩请老人再给他一次“机会(chance)”。10A.After all BSo farCAt first DAs usual解析：选A由该空前后内容可知，这里是说：为什么不呢？“毕竟(After all)”这个孩子看上去十分真诚。11A.B
14、ut BOrCSo DUnless解析：选C老人认为这个孩子真诚，因此又让他进了店，前后是因果关系，故填So。12A.ran away Bcame outCfell down Dwent back解析：选B由上文的“the man sent him back in the store”可知，过了一会儿，小男孩手里握着表“出来(came out)”了。13A.angry BproudCnervous Dsurprised解析：选D看到自己的表被找到了，这位老人十分“惊喜(surprised)”。14A.failed BfinishedCregretted Ddoubted解析：选A由上文内容可知
15、，其他孩子都没有找到表而这个小男孩成功了，故填failed。15A.played BwaitedClistened Dwatched解析：选C由该空后的“Then I heard the ticking (滴答声) of the watch”可知，这个小男孩坐在地上开始仔细地“听(listened)”。16A.station BdirectionCsituation Ddarkness解析：选B听到手表的滴答声，然后朝着那个“方向(direction)”找去。17A.Luckily BPossiblyCBesides DInstead解析：选D我们往往只考虑自己的需求，这样就无法让我们的心平静下来。“相反(Instead)”，我们应该从自身的角度去想一想，这样才会带来“好的(good)”结果。18A.clear BgoodCdirect Dnatural解析：选B参见上题解析。19A.silence BexerciseCpleasure Dconvers
