1、Unit 3Section .阅读理解Chinas lasting research and development efforts have helped the nation keep its pioneering role in developing 5G mobile communication technology, related standards and the licensing stage.Chinese telecom companies are trying to keep their leading role in the global race for 5G com
2、mercialization (商业化)They are speeding up R&D of the fifthgeneration mobile communication technology.The 5G technology is said to be at least 10 times faster than 4G services which means it will enable superfast downloads of heavy files like movies, selfdriving cars and virtual(虚拟的) reality games.It
3、will do largescale experiments of using 5G in 17 cities.Yang Jie, chairman of China Telecom, said，“We aim to begin commercial 5G services in 2020.”China Mobile Communications Corp is planning to use 5G with AI and cloud technology for a latest network, which is planned to be used in the year 2020.Th
4、e company has played an important role in the finish of the first stage of global 5G standards.The company will push forward the cloud deployment (云部署) of the superfast technology and build an intelligent network.Similarly, China Unicom said it will start 5G testing this year, commercialize 5G in 20
5、19 and finally carry out largescale commercialization in 2020.China is expected to have 576 million 5G users by 2025, according to a report published by EY earlier this month.With the global united standard set to be finished in the next year or so, China is likely to advance its plan for the commer
6、cial use of 5G connections to 2019, to possibly become one of the first 5Gready markets in the world, EY forecast.In the past, China was behind other countries in publishing 4G and 3G licenses.But in 5G, perhaps China will race ahead in R&D.China is struggling to take a leadership role in the global
7、 landscape.China is also hungry to join in the decision of 5G international standards, making it one of the major players.文章大意：本文是一篇说明文。文章主要讲述了中国日益发展的网络5G技术并对其进行了介绍，以及与他国的5G技术领军争夺战。1The word “heavy” in the second paragraph refers to C.AimportantBlongChugeDvaluable解析：词义猜测题。根据文章第二段内容，“The 5G technolog
8、y is said to be at least 10 times faster than 4G services which means it will enable superfast downloads of heavy files like movies, selfdriving cars and virtual (虚拟的) reality games.”5G技术据说比4G服务快至少10倍，这意味着它可以快速下载“大储存量”文件，如电影、自动驾驶汽车和虚拟现实游戏。故heavy的意思为“巨大的”。故选C。2What can we infer about the passage？AACh
9、ina attaches great importance to the commercial application of 5G.BThe largescale experiments of using 5G will be done in 17 cities by China Mobile.CChina lay behind other countries in using 4G and 3G in the past.DChina will decide 5G international standards in the future.解析：推理判断题。根据文章第一段第一句内容，“Chin
10、as lasting research and development efforts have helped the nation keep its pioneering role in developing 5G mobile communication technology, related standards and the licensing stage.”可知中国长期的研究和开发工作，帮助国家在发展5G移动通信技术、相关标准和许可证阶段保持了开创性的作用。即中国高度重视5G的商业应用。故选A。3According to EY forecast, the year when Chin
11、a plans the commercial use of 5G connections is likely to be B.A2018B2019C2020D2025解析：推理判断题。根据文章倒数第二段第二句内容，“.China is likely to advance its plan for the commercial use of 5G connections to 2019, to possibly become one of the first 5Gready markets in the world, EY forecast.”可知安永预测，中国计划将5G连接商业化使用的时间可能
12、是2019年。故选B。4The best title of this passage is D.AThe 5G technology in ChinaBThree communication companies in ChinaCThe commercial use of 5G in ChinaDChinese carriers wrest (争夺) 5G lead解析：标题判断题。根据文章内容，文章主要讲述了中国日益发展的网络5G技术以及与他国的5G技术领军争夺战。结合选项，故选D。.七选五根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Things to
13、know when you write an email messageFor most of the twentieth century, people communicated by telephone or by mail. This is now changing，and email is becoming the preferred method of communication. Its faster than traditional mail.1.B As email is becoming popular, here are several rules we need to k
14、now.Be polite and friendly.Start your message with a greeting. If you are writing to a friend, you can begin with Hi, Sandra. If you are writing to your teacher, begin your message with Dear Mr Atonso. 2.E Many people just type their names.Others say Bye, Cheers，or use abbreviations (缩写) like BFN (b
15、ye for now)Look good.When someone receives an email message from you, they might not know anything about you.They will judge you from your email message, so make yourself look good.3.DSometimes sentences seem clear when you write them, but dont make sense when you read them back.4AIf you start to us
16、e your email several times a week, your message box will soon be filled with mail.After a few weeks，you can have a list of 60 or 70 messages! It is easy to delete (删除) the messages you dont want anymore.If your messages are important, you can save them in folders (文件夹).5.F It only takes a few minute
17、s to learn.AOrganize your email.BIts cheaper than a phone call.CThe email must be addressed correctly.DType your message, and then read it again.EYou need a closing at the end of your email.FIf you dont know how to do that, just ask a friend.GThe most commonly used emails are business emails.文章大意：本文
18、是一篇说明文。介绍了如何写一封电子邮件。解析：1根据空格前的内容可知“电子邮件比传统邮件快多了”，可知此处介绍的是电子邮件的优点。B项“电子邮件比打电话便宜。”符合题意。故选B项。2根据空格后的内容可知很多人只需要打出他们的名字。E项“在邮件的最后要有一个收尾。”符合题意。故选E项。3根据本段标题Look good.和该空后的“Sometimes sentences. when you read them back.”可知，写完后要再读一遍。故选D项。4考查本段的标题。本段主要论述了及时整理邮件的重要性，故用Organize your email.“整理你的电子邮件”作为小标题最恰当。选A。5
19、由该空前的“you can save them in folders (文件夹)”和该空后的“It only takes a few minutes to learn.”可知，F项“如果你不知道如何去做，问问朋友就可以了。”符合语境。.完形填空Is it a good thing that teens around the world use social media a lot? While you can say nice and 1.B things on the Internet, you could also say mean and hurtful words 2.A，its ca
20、lled cyberbullying (网络欺凌)When people say mean things to us, we feel 3.C， depressed and powerless. These are just some of the possible 4.B effects that could affect teens who are cyberbullied.Teens think their lives arent worth anything or that lives are too 5.B to handle when they are often sad or d
21、epressed.Its difficult to believe that one person saying mean or 6.C things to another person could make him think about 7.C himself, but it does happen. However，you could say that teens can just turn off their computers or their phones. They can just block(屏蔽) the person who 8.B them or just simply
22、 ignore him.9.A， people, especially teens love going on the Internet and talking to people. Its part of their daily lives. Its 10.B to tell teens to turn them off. In addition，11.C they block someone, the person can just 12.A coming back on a different account or as someone else. Also, if its a 13.B
23、 posted video，picture or message, everyone can see it and even report or share it.And finally no one can just 14.D so many mean words that are being said to them.Overall, cyberbullying is a(n) 15.D thing that people do. There should be laws to protect people from cyberbullying.文章大意：本文是一篇说明文。文章介绍了网络欺
24、凌及其带来的后果。1ApopularBkindCinterestingDproper解析：根据本空前的nice可知，在网络上可以说“友好的(kind)”事。2AonlineBon purposeCindirectlyDin brief解析：根据本段中的social media, Internet可知，这里指当人们“在网上(online)”说一些恶毒或伤害人的话时就构成了网络欺凌。3AterrifiedBlonelyCsadDbored解析：根据下文中的depressed and powerless，再结合本句句意可知当有人对我们说恶毒的话时，我们会感到“难过(sad)”、沮丧和无力。4Anot
25、iceableBnegativeCpracticalDlasting解析：根据本段中的depressed, powerless可知，当有人对我们说恶毒的话时，我们会感到难过、沮丧和无力，这是网络欺凌可能带来的“负面(negative)”影响。5AshortBhardCordinaryDbusy解析：此处说明网络欺凌的负面影响让青少年因此觉得自已的生命没有价值或者生活太“艰难(hard)”。6ArealBstupidCcruelDhorrible解析：根据本空前的mean可知，这里指一个人对另一个人说一些恶毒或“残忍的(cruel)”话。7AteachingBblamingCkillingDpu
26、nishing解析：网络欺凌会让有些人因此想“自杀(killing himself)”。8AcheatsBhurtsCbeatsDconfuses解析：要屏蔽的应该是“伤害(hurts)”他们的人。9AHoweverBMoreoverCInsteadDTherefore解析：本空前后部分为转折关系，故However符合此处语境。10AunnecessaryBunrealisticCunusualDuncertain解析：根据本空两句内容可知，青少年喜欢上网聊天，这是他们日常生活的一部分，因此让他们关掉手机和电脑是“不现实的(unrealistic)”。11AasBunlessCifDuntil
27、解析：此处表假设， 故用if。12AkeepBadmitCrememberDenjoy解析：如果他们屏蔽了某个人，这个人也可以“一直(keep)”用别的账户或以别人的名义上网。13AquicklyBpubliclyCcarelessDcoldly解析：根据本句中的everyone can see it可知，这里指的是“公开(publicly)”上传到网上的视频、图片或信息。14AforgetBrefuseCdiscoverDignore解析：没有人可以“忽略(ignore)”对他们说的那么多恶毒的话语。15AdifficultBfunnyCannoyingDterrible解析：综上所述不难看
28、出，网络欺凌很“可怕(terrible)”。.语法填空阅读下面材料，在空白处填入一个适当的单词或括号内单词的正确形式。What do people do with their old, outofdate but still useful computers? Most people dont know 1.how to deal with them. Many old computers are put away in homes. Many more 2.are_thrown(throw) away with the rubbish.Finally, some companies are
29、thinking of ways 3.that they bring down the number of old computers.Sony has agreed to help recycle old Sony products. Dell and other companies now also take 4.back some old computers.In some countries, laws are being passed, too.Computer companies will have to collect and recycle their 5.used (use)
30、 products. And 70% of computer waste must be recycled. The idea behind the laws 6.is(be) that computer companies themselves should pay the cost. That will encourage them 7.to_make(make) computers that are easier and cheaper to repair and upgrade (升级)Yet while many people are throwing away good compu
31、ters, others cannot afford 8.them at all.Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers. 9.The computers then go to schools, charities and people who need them, Giving a used computer to one of these
32、10.organizations(organize) can turn one persons rubbish into someone elses useful thingsand cut down on waste, too.文章大意：本文是一篇说明文。电脑在我们的日常生活中变得越来越普及，那么，对于那些旧电脑我们该如何处理呢？赶紧来读一下这篇文章吧！解析：1考查连接词。空格处表示的是处理旧电脑的方式，所以填连接词how。2考查时态和语态。many more指代的是old computers，与throw away是被动关系，且根据语境可知用一般现在时，故用一般现在时的被动语态结构。3考查
33、定语从句。分析句子结构可知，所填词引导定语从句，且先行词为ways。故填关系词that。4考查固定搭配。take back“回收”。戴尔和其他公司现在也回收一些旧电脑。5考查固定搭配。考句意：电脑公司不得不回收和循环利用他们用过的产品。过去分词used作定语表示“被使用过的”。6考查时态和主谓一致。句子的主语idea是单数，根据语境知使用一般现在时。故填is。7考查时态和主谓一致。encourage sb. to do sth.“鼓励某人做某事”，是固定搭配。8考查代词。代词替代前面的computers，作afford的宾语，用them。9考查冠词。特指回收以后修理好的那些旧电脑，用the。1
34、0考查名词复数。“one of名词复数”表示“之一”。.应用文写作随着网络的发展，很多人给亲朋好友发电子贺卡表示问候和祝福。请根据以下提示，写一篇博客，阐述电子贺卡的优越性。1传递速度快；2形式多种多样；3有利于保护环境；4可以播放动画和声音。注意：1.词数80左右；2可适当增加细节，以使行文连贯。参考词汇：电子贺卡ecard；动画animation_参考范文：With the development of the Internet, more and more people tend to send ecards instead of paper ones to offer their gr
35、eetings and wishes to their relatives and friends. Compared with traditional cards, ecards are more interesting and lively, for you can get not only pictures but also sound and animation. Besides, it is faster to send an ecard. There are many websites online where varieties of cards are available. If none of these cards are of any interest to you, you can design cards with unique style using FLASH or other software. More importantly, with the popularity of ecards, less paper is used for making traditional cards, which contributes to the environmental protection.