Unit 3 The Internet Reading and Thinking—高一英语人教版（2019）必修第二册课时优化训练
一、阅读理解
1． As for old people, some of the applications are hard to use because they didn't grow up with them. They don't have simple models of how they should work, what to do when something doesn't work or where to go for help. We make it as easy as possible to be used for people who are not familiar with the technology.
I think there is huge potential and we are designing it. The ability to connect to friends, who remember the same movies, news and music, is really important, especially as people get old. They end up in retirement at home and they aren't always close to their friends. Allowing the network to help them connect with friends and family is a really powerful thing.
My mother is an enthusiastic user of the Internet, although it took me years to get her to use e-mail. She was born with normal hearing, but lost it when she was 3. She was totally deaf for many years, until age 53, when she got ear aids. They work really well. That is a big change for her. But before then, her friends couldn't call her on the phone, so they suggested she use e-mail to communicate with them.
Young people don't even think of the Internet as technology. It's just there, and they use it. There's been a very interesting change in communication styles between old people and young people. There are some kids who are now in their teens and aren't willing to make phone calls. And they think e-mail is old-fashioned and slow.
The reason why teens don't make phone calls seems to be that they don't know what to say. When they call, they often stop for a while and there's a silence. On the other hand, texting is considered proper, and it's okay if you don't answer. You might have been distracted. It's not rude. But it is strange if you're in this kind of conversation and simply stop talking.
1.What is the trouble that old people meet when surfing the Internet
A.They don't know how to use some applications.
B.They have to buy electronic productions at a high price.
C.There is no professional teacher to teach them how to use the Internet.
D.They have no friends to communicate with online.
2.What do the young people think of the Internet according to the passage
A.Interesting.
B.Amazing.
C.Boring.
D.Common.
3.We can infer from the passage that the author is a _______.
A.company manager
B.program designer
C.college professor
D.mobile phone seller
4.What does the underlined sentence in the last paragraph probably mean
A.You have replied the message.
B.You have walked away from the conversation.
C.You have been cut off.
D.You have asked for a pardon.
2．A new library in Tianjin—Tianjin Binhai Public Library—recently became an online hit. The Daily Mail described it as the “world’s ultimate (终极的) library”, while the word “breathtaking” was the choice of Newsweek magazine. One look at the library and you’ll see why. With its futuristic (未来主义) design and walls loaded with books, it’s the dream library of every book lover.
But as the surprise continues, there’s a burning question lying in the back of our minds: When physical bookstores are closing down one by one, what makes libraries safe from the wave of digitalization (数码化) And do we really still need libraries now that we’ve got the Internet in our hands
Reporter Ian Clark has the answer. “Libraries are not declining in importance—people are simply changing the way they use them,” he wrote on the Guardian website.
What Clark means is that libraries have shifted from simply being storehouses of books to a medium to help “bridge the gap between the haves and the have-nots” according to website Libraries Are Essential. Since not everyone can afford a smartphone, a tablet or an Internet connection, and not everyone has the know-how to search the Internet correctly and efficiently, it’s public libraries that make sure that these resources and technologies are available to a larger group of people.
“Nobody is trying to sell you anything in the library. There is no pressure to buy and there is no judgment of your choices/’ Anne Goulding, a professor at Victoria University in New Zealand, wrote on the Newsroom website. “There are few other spaces that you can just ‘be’ without somebody questioning your presence or your motivation.”
1.What cause book-lovers to like Tianjin Binhai Public Library
A.Breathtaking magazines.
B.World’s ultimate buildings.
C.Digitalization.
D.Design and book walls.
2.Where does the text most probably come from
A.A fiction. B.A tour guide. C.A newspaper D.A book.
3.Why are physical libraries necessary to exist
A.Everyone has a phone with them.
B.Some people are still used to the old ways.
C.More and more people use computers.
D.People can buy what they want there.
4.What does the text mainly talk about
A.Libraries living on in digital age.
B.internet libraries nowadays.
C.Physical libraries in the past.
D.People’s dream libraries.
3．Singing revolutionary songs, reciting martyrs’（烈士） stories, putting on performances that eulogize (颂扬） Chairman Mao Zedong, such are the daily scenes of more than 200 Red Army primary schools across China.
On campus, students wear Red Army uniforms, including octagonal (八角形的) caps and red scarves. In class they sing songs from the old revolutionary years，discuss the history of the CPC and learn the history of local soldiers.
Red Army primary schools, which were started in 2007, are schools named after influential figures of past revolutionary periods, such as Mao Zedong Red Army Primary School and Deng Xiaoping Red Army Primary School, or significant events or sites such as Xibaipo Red Army Primary School.
Red Army schools aim to carry on the revolutionary genes while improving educational conditions for children in China’s impoverished areas that used to be revolutionary bases, mainly through funds from the project council and financial support from local governments.
Red Army primary schools have been expanding across the nation over the past decade, following the footprints of China’s Red Army, covering revolutionary bases in 29 provinces. As the scale of the project continues to expand, donations to the schools have also expanded from the initiators (发起者），who were mostly revolutionaries or soldiers and their relatives, to cover all of society.
“Calling them Red Army ’ opened a channel for donations from all people in our society，”said Feng Haibo, vice principal at Bayi Red Army Primary School in Xibaipo, Hebei Province，where three primary schools are named“Red Army”.
1. What does Paragraph 2 talk about
A. Many instructive campuses.
B. Very active students at school.
C. How teachers ask students to sing revolutionary songs.
D. How the students carry the flag of loving motherland at school.
2. Red Army primary schools are named according to the following except .
A. significant sites
B. important events
C. famous revolutionary songs
D. influential figures of past revolutionary periods
3. What does the underlined word “impoverished ’’ in Paragraph 4 mean
A. Poor. B. Rich.
C. Natural. D. Mountainous.
4. As Red Army primary schools develop, .
A. many people get to know them
B. donations to the schools have also increased
C. more soldiers and their relatives take part in them
D. more and more people like singing revolutionary songs
二、七选五
4．How to Develop Courage by Overcoming Daily Fears
Sometimes when thinking of courage, we think it only applies to rare and uncommon situations. Yet our ordinary lives can also be full of courage, even if we are not facing the end of a gun, a wild animal or a dangerous criminal. Courage doesn't just mean doing heroic acts. ①________ In fact, where there is fear on a daily basis, there are opportunities for you to show your courage. Here are some suggestions to develop courage by overcoming daily fears.
Recognising your fears.
By realising that you are fearful, you're more likely to get to the bottom of what your fear is. ②________ You might come to understand that you're afraid of failing or taking chances. You may be fearful simply because you don't have confidence in yourself. The key is not to dwell on your fear, but rather to understand what it is that you're worried about.
Ask yourself what is the worst that can happen.
If you hesitate to take action, ask yourself this: What's the worst that can happen Then prepare to accept it. Then go on to improve on the worst. Is failure the worst thing that can happen No, absolutely not. ③________ Doing nothing is actually the worst thing that can happen. When you take no action, you are assured of getting nowhere.
Take action.
Courage comes from taking action. ④________ You need to act to overcome your fear. Your action may put you into discomfort, but you just have to do it. And your action can prevent you from being stuck.
⑤________
To build up your confidence, you need to do the same thing over and over again. Soon you will discover that less courage is needed because you have already gained mastery. You are able to move decisively forward.
A. Share your fear with others.
B. Practise, practise and practise.
G. So you are already in a comfort zone.
D. You cannot think courage comes just in one day.
E. Each undesired result is just one more step towards your goal.
F. Find out what is truly holding you back.
G. You needn't wait for an emergency to occur to develop courage.
三、语法填空
5．I would appreciate it if you could reply at your earliest________ (convenient).
6．The Internet has made _______possible for people to keep in touch easily even if they are on opposite sides of the world.
四、书面表达
7． 结合课文主题，使用本单元词汇与句型写一篇50词左右的短文
1.如果你方便(convenient)的话，请帮助一下这个学生，他陷入(stuck)电脑游戏不能自拔。
2.为此，我经常激励(inspire)他多参加户外活动，这对他的健康有好处(benefit)。
3.在戒掉网瘾之前，他肯定要度过(go through)—段艰难的(tough)时期。
4.我告诉他，既然选择了远方，便只顾风雨兼程。
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
1．答案：1-4 ADBB
解析：1.细节理解题。根据第一段中"As for old people, some of the applications are hard to use because they didn't grow up with them."可知，老年人上网时遇到的麻烦是他们不知道如何使用一些应用程序，故选A项。
2.推理判断题。根据文章倒数第二段中"Young people don't even think of the Internet as technology. It's just there, and they use it."可推知，年轻人认为网络是常见的东西，故选D项。
3.推理判断题。文章首段提到电脑的一些应用程序对老年人来说很复杂，然后第二段中"I think there is huge potential and we are designing it."可推断，作者是一名编程人员，故选B项。
4.推理判断题。根据最后一段中"But it is strange if you're in this kind of conversation and simply stop talking."可推知，画线部分"You might have been distracted."的意思是"你可能注意力没有集中在谈话上"。故选B项。
2．1.D1.D2.C2.C; 3.B; 4.A
解析：1.细节理解题。根据第一段可知，让图书爱好者喜欢上天津滨海公共图书馆的是它的设计和书墙。
2.推理判断题5根据第一段中的"A new library in Tianjin — Tianjin Binhai Public Library — recently became an online hit. The Daily Mail described it as the 'world's ultimate library' " 可知，这篇文章可能出自报纸。
3.推理判断题。根据第四段可知，由于并不是每个人都能通过网络获取知识，所以一些人依然在使用老方法，即去图书馆获取知识。
4.主旨大意题。根据全文内容尤其是第 二段中的"When physical bookstores are closing down one by one, what makes libraries... now that we've got the Internet in our hands"可知，这篇文章的主旨是在数字化时代，图书馆仍将继续存在。
3．答案：1.D 2.C 3.A 4.B
解析：1. D 段落大意题。本段主要讲的是，在校园里，学生 是怎样传递爱国主义旗帜的。故选D项。
2. C 细节理解题。根据第三段中的“are schools named after influential figures of past revolutionary periods”和“or significant events or sites” 可知，红军小学的 命名是根据革命时期有影响的人物、重大事件或地点。故选 C项。
3. A 词义猜测题。根据上文的“improving educational conditions” 和下文的 “ mainly through funds from …”可知， impoverished的意思是“贫困的”。故选A项。
4. B 细节理解题。根据第五段第二句“As the scale of the project continues to expand, donations to the schools have also expanded”可知，随着红军学校不断壮大，给这些学 校的捐赠也在增加。故选B项。
4．答案：GFEDB
解析：本文是一篇说明文。作者在文中给出了几条增强勇气的建议。
①由空前的"Courage doesn't just mean doing heroic acts."可知,勇气不仅意味着做些英雄举动,与此语境吻合的应为G项“你不必等到有紧急状况发生时再拿出勇气”。
②该段是作者给出的第一条建议——认清你的恐惧。浏览各选项,只有F项“弄清楚是什么真正使你犹豫不前”与此语境吻合。
③根据空前后语境“失败是最坏的结果吗 不,当然不是……什么都不做才真正是能发生的最坏的事情”,并浏览各选项可知能插在这两个句子之间的只有E项“每次不如意的结果不过是离你的目标又近了一步”。
④该段给出的建议是采取行动。空前后写道“勇气来源于行动……你需要用行动来克服恐惧”,故该空选D项“你不能认为勇气只在一天内就拥有了”。
⑤该段讲的是要不断地做同样的事情才能增强自信,适合做该段小标题的只有B项“练习,练习,再练习”。
5．答案：convenience
解析：
6．答案：it
解析：考查代词。句意:即使人们在世界的两端,互联网也能使他们很容易地保持联系。此处考查"make +宾语+宾补"结构,解题思路句子结构可知,空处应用it作形式宾语,真正的宾语是后面的不定式短语。
7．答案： If it is convenient for you, please help this student (who is) stuck in computer games. Therefore, I often inspire him to take more outdoor activities, which is of benefit to his health. He is sure to go through a tough time before he quits his addiction to the Internet. I told him that now that you've decided to go to a distant place, you'll try your best to make the trip.
解析：Unit 3 The Internet Reading for Writing—高一英语人教版（2019）必修第二册课时优化训练
一、阅读理解
1． On March 28th, the New York Times will begin charging all but the most infrequent users to read articles online.
In a letter to readers, Arthur Sulzberger, Jr., the publisher of the paper, laid out the details of the paywall, which he said will go into effect immediately in Canada and on March 28th for the rest of the world. He called the move "an important step that we hope you will see as an investment in the Times, one that will strengthen our ability to provide high quality journalism to readers around the world and on any platform."
Sulzberger said that readers will be able to read 20 articles per month at no charge. Once they click on the 21st piece, however, they'll be presented with three payment options: $ 15 for four weeks of online and mobile application access, $ 20 for access to the site and the iPad application, or $ 35 for access to everything. People who already receive the printed paper through home delivery will enjoy free and unlimited access to the Times on all platforms.
These details largely agree with earlier reports on how the paywall would work. The Times had made it clear that it did not want to imitate the total paywalls put into effect by papers such as The Times of London and Newsday, which block access to all contents unless the reader pays.
The paper also signaled that it wants to stay relevant in the social media world. According to Sulzberger's announcement, people who come to the Times site from Facebook, Twitter or from blogs will be able to read those articles even if they have gone over their monthly limit.
However, Sulzberger said that a limit will be placed on "some search engines", meaning that after readers have accessed a certain number of articles from search engines, any further articles they access from there will be added to their monthly count. It was reported that the only search engine that will be affected this way is Google, where there will be a five-article limit. This marks a clear attempt by the Times to close what could be a giant loophole(漏洞), since so much online traffic is directed through Google. But it also presents a risk for the Times for the same reason.
Sulzberger seems well aware of the risk. "The challenge now is to put a price on our work without walling ourselves off from the global network." he said, adding that the Times must "continue to engage with the widest possible audience".
1.The author's main purpose of the text is to ________.
A.describe research findings
B.make advertisements
C.report a piece of news
D.suggest a solution
2.Why will the Times charge their online readers
A.It wants to stay relevant in the social media world.
B.It has too many readers coming from the other sites.
C.It is trying a way to offer better service to its readers.
D.It is seeking new financial sources for its development.
3.Who will be limited to the New York Times articles
A.Those subscribing to the printed newspapers.
B.Readers clicking through from Facebook.
C.Those using Google search engine.
D.Readers paying $ 35 a month.
2． Big data of the human face can make a difference. Technology is rapidly catching up with the human ability to read faces. Apple's iPhone X has already used face recognition to unlock the home screen. Face recognition is becoming increasingly common in China, where it has been equipped at ATM and KFC restaurants. It is also used by shop owners to catch shoplifters.
Some universities are using face recognition technology as a means to keep track of the students' attendance in the classrooms. Students stand in front of a screen when they walk into lecture halls. Photos taken at the screen are matched with those logged in the university's database. It's believed that the system is highly accurate(精确的) because it can identify students even if they change their hair or wear makeup. Students have joked that face recognition is so strict that they don't dare to skip classes anymore. The traditional way of taking attendance is through a roll call. The new system helps to improve efficiency
(效率).
Face recognition technology has already been used in different fields in China. Police have set up face recognition scanners at busy crossroads to catch jaywalkers, whose photos will be shown on the digital screen as a warning. In the hotels of Wuzhen attractions, face scanner-equipped gates identify tourists staying in its hotels. The data collected will then serve as Entry Pass through the town's various attractions. Tourists do not have to pay extra entrance fee. Face recognition has also been in business use in China Alipay, for example, is using its face recognition technology to help customers at a Hangzhou KFC branch order food: The camera in the KFC will check customers' face against the ID card photos linked to their Alipay accounts.
Face recognition is expected to be used in all sorts of fields. It is going to become part of your life if it isn't already.
1.New iPhone uses face recognition to _______.
A.catch shoplifters
B.unlock the screen
C.keep track of customers
D.take workers，attendance
2.What is the advantage of the new system to track attendance according to the text
A.It can take more pictures.
B.It never makes any mistakes.
C.It saves time and reduces workload.
D.It can identify students by their hair and makeup.
3.Which of the following can be the best title for the text
A.How to Prevent Crime
B.Technology Saves Time
C.Technology Changes Life
D.Amazing Face Recognition
3．Oliver Twist (excerpt)
Although I am not disposed to maintain that the being born in a workhouse, is in itself the most fortunate and enviable circumstance that can possibly befall a human being, I do mean to say that in this particular instance, it was the best thing for Oliver Twist that could by possibility have occurred. The fact is, that there was considerable difficulty in inducing Oliver to take upon himself the office of respiration—a troublesome practice, but one which custom has rendered necessary to our easy existence; and for some time he lay gasping on a little flock mattress, rather unequally poised between this world and the next: the balance being decidedly in favour of the latter. Now, if, during this brief period, Oliver had been surrounded by careful grandmothers, anxious aunts, experienced nurses, and doctors of profound wisdom, he would most inevitably and indubitably have been killed in no time. There being nobody by, however, but a pauper old woman, who was rendered rather misty by an unwonted allowance of beer; and a parish surgeon who did such matters by contract; Oliver and Nature fought out the point between them. The result was, that, after a few struggles, Oliver breathed, sneezed, and proceeded to advertise to the inmates of the workhouse the fact of a new burden having been imposed upon the parish, by setting up as loud a cry as could reasonably have been expected from a male infant who had not been possessed of that very useful appendage, a voice, for a much longer space of time than three minutes and a quarter.
As Oliver gave this first proof of the free and proper action of his lungs, the patchwork coverlet which was carelessly flung over the iron bedstead, rustled; the pale face of a young woman was raised feebly from the pillow; and a faint voice imperfectly articulated the words, 'Let me see the child, and die.'
The surgeon deposited it in her arms. She imprinted her cold white lips passionately on its forehead; passed her hands over her face; gazed wildly round; shuddered; fell back—and died. They chafed her breast-hands, and temples; but the blood had stopped forever. They talked of hope and comfort. They had been strangers too long.
'It's all over, Mrs Thingummy!' said the surgeon at last.
'Ah, poor dear, so it is!' said the nurse, picking up the cork of the green bottle, which had fallen out on the pillow, as she stooped to take up the child. 'Poor dear!'
'You needn't mind sending up tome, if the child cries, nurse,' said the surgeon, putting on his gloves with great deliberation. 'It's very likely it will be troublesome. Give it a little gruel if it is.' He put on his hat, and, pausing by the bedside on his way to the door, added, 'She was a good-looking girl, too; where did she come from '
'She was brought here last night,' replied the old woman, 'by the overseer's order. She was found lying in the street. She had walked some distance, for her shoes were worn to pieces; but where she came from, or where she was going to, nobody knows.'
The surgeon leaned over the body, and raised the left hand. 'The old story,' he said, shaking his head: 'no wedding-ring, I see. Ah! Good-night!'
The medical gentleman walked away to dinner; and the nurse, having once more applied herself to the green bottle, sat down on a low chair before the fire, and proceeded to dress the infant.
What an excellent example of the power of dress, young Oliver Twist was! Wrapped in the blanket which had hitherto formed his only covering, he might have been the child of a nobleman or a beggar; it would have been hard for the haughtiest stranger to have assigned him his proper station in society. But now that he was enveloped in the old calico robes which had grown yellow in the same service, he was badged and ticketed, and fell into his place at once—a parish child—the orphan of a workhouse—the humble, half-starved drudge—to be cuffed and buffeted through the world—despised by all, and pitied by none.
Oliver cried lustily. If he could have known that he was an orphan, left to the tender mercies of church-wardens and overseers, perhaps he would have cried louder.
1.Why did the author said that Oliver Twist's being born in a workhouse was fortunate
2. What did the author mean by saying "The old story"？
3. Why would Oliver perhaps have cried louder
二、七选五
4．Chances You Will Not Regret Taking in Life
Life is about trusting yourself and taking chances, losing and finding happiness, learning from experience, appreciating the memories，and realising the importance of taking every step. ① You also need to realise that every step is worth your effort. You’ve got to give yourself a fair chance. So here are some chances you will not regret taking in life.
Trust your intuition （直觉） on new opportunities. Life is too short to wait. Every new day is another chance to change your life. ② Trust that little voice inside your head that says, “ What if…” and then do it bravely once you decide.
③ You have everything you need within you to become the best possible version of yourself. Believe that you can. Believe that you’ve capable of pushing harder and farther than you have before. Believe that you’ve young enough, old enough and strong enough to achieve your goals. Don’t let false belief stop you from moving beyond yourself. And certainly don’t get disturbed by other people who are not on track.
Make moves in the face of fear. It’s often difficult to grow into your greatest self, but it9s a tragedy to let the lie of fear stop you. ④ Go after your goals. Never let your fear decide your future.
Smile anyway. Don’t let one bad moment ruin your day. ⑤ Stress begins when your worry list is longer than your gratitude list. Happiness begins when your gratitude list is longer than your worry list. So find something to be thankful for today. Be sure to appreciate what you have got. Be thankful for the little things in life that mean a lot.
A. Take a step forward today.
B. Believe in your own abilities.
C. You need to work on it gradually every day.
D. Of course, you need to be willing to take each step.
E. Every great achievement starts with the decision to try.
F. Think of it as a bad minute，not a bad day，and you’ll be OK.
G. So realise right now that fear doesn’t exist anywhere except in your mind.
三、语法填空
5．You should keep these guidelines _____ mind _____ case you make some mistakes.
6．In order to protect their _____(private), teenagers should be careful and cautious when using public Wi-Fi.
四、书面表达
7． 假设你是李明，学校校长和老师因为担心同学们浏览不健康的网站，关闭了教室内电脑的上网功能，你们感到很难过。请你写一篇博客谈谈你对此的看法。
注意：
1.博客要包括下表中的所有内容；
2.词数110左右；
3.博客的开头和结尾已给出，不计入总词数。
4.参考词汇:judgment判断力；principal校长
事由 教室内的电脑不能上网，建议学校开通网络
原因 1.有利于查找资料； 2.浏览新闻，了解信息； 3.作为高中生，我们正在形成自己的判断力。
Today I want to blog about a question that has been discussed many times—whether students can surf the Internet in the classroom.
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
1．答案：1-3 CDC
解析：1.推理判断题。本文主要介绍了《纽约时报》将对在线阅读收费，是在报道一条新闻。故选C项。
2.细节理解题。根据第二段最后一句可知，Sulzberger希望读者可以把在线阅读收费看作是一种投资，这个投资可以使《纽约时报》在全球任何一个平台上为读者提供高品质的阅读。而这个提高来自于收费， 所以收费的目的是寻求一种新的经济来源以促进发展。D项符合題意。故选D项。
3.细节理解题。根据第三段最后一句可知，订阅出版物的人不受限制，A项错误； 根据第五段最后一句可知，读者从网上看《纽约时报》不受限制，B项错误;根据第三段第二句可知，每月付35美元可以随便看,D项错误；由第六段可知C项符合题意，故选C项。
2．答案：1-3 BCD
解析：1.细节理解题。根据第一段Apples iPhone X has already used face recognition to unlock the home screen.得知苹果的新款iPhone已经利用这一技术来解锁屏幕。 故选B。
2.细节理解题。根据第二段The traditional way of taking attendance is through a roll call. The new system helps to improve efficiency得知一些大学使用人脸识别技术来跟踪学生出勤，节约了时间和工作量。故选C。
3.主旨大意题。根据全文大意得知本文介绍了人脸识别技术的奇特之处和其广泛应用。故选D。
3．1.Because1.Because when born Oliver was too weak to breathe. Fortunately he was saved by two people in the workhouse.
2.Oliver's mother was unmarried
3.Because his life would be miserable as an orphan.
解析：
4．答案：DEBGF
解析：1.根据上文中的“ realising the importance of taking every step” 和下文中的“You also need to realise that every step is worth your effort.”可知，此处强调每一步至关 重要，每一步都值得你付出努力，D项中的“ be willing to take each step”符合此处语境，故选D项。
2 .根据下文中的“do it bravely once you decide”可 知，E项中的“the decision to try”与此意义一致，故选E项。
3 .that...比句“Believe that...”可知，本段 介绍的是要相信自己的能力，故选B项。
4. 根据上文中的“Make moves in the face of fear.” 和下文中的 “ Never let your fear decide your future.” 可知， 本段内容与心中的恐惧有关，G项中的“fear”与本段关键词 一致，故选G项。
5. 根据上文中的“Don’t let one bad moment ruin your day.”可知，F 项中的“a bad minute, not a bad day” 与上 文中的“one bad moment”对应，故选F项。
5．答案：in; in
keep...inkeep...in mind意为“把……记在心里”,故第一空填in;此处指你应该牢记这些指导方针以防你犯一些错误,in case意为“以防”,故第二空填in。
6．答案：privacy
解析：考查名词。设空处作protect的宾语,且由设空处前面的形容词性物主代词their 可知此处应用名词privacy。句意:为了保护自己的隐私,青少年在使用公共Wi-Fi时应该小心谨慎。
7．答案：
基础篇
Today I want to blog about a question that has been discussed many times—whether students can surf the Internet in the classroom. We know our principal and teachers are afraid that we may visit unhealthy websites.
Actually, every coin has two sides. We still think that surfing the Internet can bring us much more benefits and it is more convenient for our study. Firstly, I think it would be better if we can surf the Internet, because there are a wide range of learning resources on the Internet. Secondly, we can keep track of various news online. Finally, as high school students, we are forming our judgment and we will keep what our principal and teachers say in mind. Given chances, we are sure that we will learn how to stay away from unhealthy websites.
I really hope we can have a chance to surf the Internet and our principal and teachers can take my suggestion into consideration and make a final decision.
提升篇
Today I want to blog about a question that has been discussed many times一whether students can surf the Internet in the classroom. We know our principal and teachers are afraid that we may be accessible to unhealthy websites.
Actually, every coin has two sides. We still think that surfing the Internet can bring us much more benefits and make our study more convenient. First of all, I think it would be better if we can surf the Internet, because there are a wide range of learning resources on the Internet. Furthermore, we can keep track of various news online. Last but not least, as high school students, we are forming our judgment and we will keep what our principal and teachers say in mind. Given chances, we ensure that we will learn how to stay away from unhealthy websites.
I do hope we can have access to surfing the Internet and our principal and teachers can take my suggestion into consideration and make a final decision.
解析：Unit 3 The Internet Listening and Speaking—高一英语人教版（2019）必修第二册课时优化训练
一、阅读理解
Social networking isn't only for the under-40s. More than 25percent of Americans 50 years of age and older stay connected using sites such as Facebook, MySpace and Twitter, according to new research.
"The latest data tells us that more and more social networking is becoming a part of everyday life for Americans 50 plus years of age," said Kevin Donnellan, chief communications officer at AARP, which released the report.
Nearly a quarter of older Americans are on Facebook and 73 percent say they use it to stay in touch with relatives, but not just their children and grandchildren. "They are using the Internet to keep up with the world and the people who are important to them," said Jean Koppen, the author of the report. She added that older adults were also on Facebook to stay connected not only with their family, but with their friends and those in the same age group. Almost 50 percent of older adults were introduced to the social networking sites by a family member, mainly a child or grandchild. Just under one-fifth of adults aged 50 and above say they do not use the Internet, according to the report.
The findings are based on a telephone survey of 1,863 adults. In addition to keeping up on Facebook and Twitter, older adults are aware of the latest technology. Eighty-three percent had heard about the Apple iPad and 11percent intended to buy one. Despite the popularity of the Internet among the over-50s, they still mostly go to print newspapers and magazines for news. Only one percent said they followed blogs.
1．What can we know according to the passage
A.85% of Americans 50 plus years of age prefer the Internet to the print media.
B.About 460 people in the telephone survey use Facebook.
C.About 20% of adults aged 50 plus have access to the Internet.
D.Three quarters of the people surveyed get to know the Internet through their family.
2．From the text, what can be concluded
A. Many older Americans are open-minded about new developments.
B. Kevin Donnellan supports this change among older Americans.
C.Young people should introduce their elders to new technology.
D.In a high tech age, it is difficult to avoid social networking.
3．What is the main idea of the text
A.Social networking isn't for the under-40s in the US.
B.American old people's way of life is quite fashionable.
C. Social networking is becoming popular among older Americans.
D.Facebook, MySpace and Twitter are the most popular websites in the US.
4．Where does the text probably come from
A.A novel. B.A newspaper.
C.A technology guide. D.A student's research paper.
5． The Internet plays a big part in human life. We use it for work and pleasure. We use it to learn a new language. We find advice on it. We use it to connect with family and friends. We use it to stay in touch with events we care about. The list goes on and on.
Well, that train has left the station. But can using the Internet too much be bad for our health It might be, researchers say. A new study finds that heavy Internet use may be connected to high blood pressure(血压) in an unlikely group: teenagers.
High blood pressure makes your heart and blood vessels(血管) work too hard. Over time, this extra pressure increases your risk of a heart attack. High blood pressure can also cause heart and kidney(肾脏) disease. It is also closely linked to a brain disease.
The Henry Ford Hospital in Detroit, Michigan did the study. 335 young people, from 14 to 17 years old, took part in it. 134 of the teens were described as "heavy Internet users". And researchers found that out of these 134 teens, 26 had high blood pressure. The researchers say the study is the first to connect heavy Web use with high blood pressure. Other research has connected heavy Internet use with anxiety, depression and obesity(肥胖).
The lead researcher is Andrea Cassidy-Bushrow. She said, "Using the Internet is part of our daily life, but it shouldn't ruin us." Ms Cassidy-Bushrow adds that it is important for teens to take regular breaks from their computers or smartphones and do some kind of physical activity. She also suggests that parents limit their children's use of the Internet to two hours a day, five days a week.
1. The expression "that train has left the station" in Para. 2 is used to show _______.
A. the Internet develops rapidly
B. no one can escape from the Internet
C. the Internet can provide whatever we want
D. there is no going back to an Internet-free life
2. What is Para. 3 mainly about
A. Causes of high blood pressure.
B. The harm of high blood pressure.
C. The disadvantages of Internet use.
D. Ways to prevent high blood pressure.
3. Andrea Cassidy-Bushrow would agree that _______.
A. teenagers shouldn't use the Internet
B. the Internet will ruin human life in the future
C. smartphones are more harmful than computers
D. regular breaks are necessary when using the Internet
4. What can be used as the best title of the passage
A. Heavy Internet users are mostly teenagers
B. How to prevent teenagers from the Internet
C. Too much Internet use may be bad for teenagers
D. Every coin has two sides—so does the Internet
6．What Is Social Media
Not many people ask the question "What is social media " anymore. Social media has been around for years now, and most of us would probably describe it as any Internet medium that can be used to share information with others, including blogs, forums, applications, games, websites and other stuff.
But let me ask you this: what exactly is so "social" about sitting before a computer setting up a blog and blogging for days without anybody reading it, or scrolling through your Facebook feed of information from 500 friends you barely know If you ask me, it can be way more antisocial than anything.
Social media is not a "thing". It's not just Facebook, WeChat and Weibo. It's more of a frame of mind and a state of being. It's about how you use it to improve your relationships with other people in real life. However, we tend to rely on technology and social media so much that it can actually tear apart those relationships.
Social media isn't about numbers. When someone says "social media", web giants like Facebook, Twitter, WeChat and Weibo instantly pop into our minds, often because they have more updates, more friends, more followers, more links, more photos and more everything. We tend to get distracted by the number game, thinking "volume, volume, volume". It leads to a lot of meaningless noise and information overload. As the old saying goes, quality over quantity is usually the way to go. So, social media is not just about lots of people aimlessly spreading lots of information.
Social media needs to have an "IRL" factor—an Internet slang standing for "In Real Life". It should affect how a person thinks or acts offline. After all, social media shouldn't be an end in itself. It was built to enhance your actual social life, in real life. Take for example an event that a person attends because he is invited by the host on Facebook through a Facebook event page. Something like that definitely has the IRL factor. Likewise, a WeChat photo that touches someone so much that they feel the need to bring it up and describe it to someone else during a dinner date also has the IRL factor.
So, is it really considered to be social to spend an hour scrolling through photos on Weibo, with no thoughtful or emotional effect and no interaction with others In fact, there is no wall between real life and Internet life where true social media exists. Social media is not a specific place on the Internet or just a thing you use to see what other people are doing. It's all about creating meaningful experiences and relationships wherever you may be.
1.What does the underlined phrase "tear apart" in Paragraph 3 mean in the text
A.Destroy.
B.Change.
C.Continue.
D. Strengthen.
2.The writer thinks that social media should be _______.
A.a number of websites where people communicate
B.a set of social tools like Facebook, WeChat and Weibo
C.a collection of online applications where ideas are exchanged
D.a group name for online platforms used to strengthen meaningful relationships
3.According to the author, which of the following cases has an IRL factor
A.Updating Facebook on a regular basis.
B.Following new friends in real life on Facebook.
C.Visiting a museum with friends after reading a story on Weibo.
D.Reading Twitter to see what other people are doing and thinking about.
4.What is the authors purpose of writing this article
A.To explain the importance of social media.
B.To inform the negative effects of social media.
C.To call on readers to use social media to promote real social life.
D.To encourage readers to interact with others in real life more often.
二、七选五
7． ①_______ He is not nearly as rich or famous as Mare Andreessen, the founder of Netscape, or Bill Gates, whose name has become a well-known word.
Berners-Lee, who works in a small office at the Massachusetts Institute of Technology, is the creator of the World Wide Web. ②_______ Gutenberg earned his reputation for inventing printing by movable type(活字) in the fifteenth century.
Berners-Lee was born in England in 1955. His parents, who helped design the world's first commercially(商业地) available computer, gave him a great love of mathematics and learning.
In 1980, Berners-Lee went to work at CERN, a physics laboratory in Geneva, Switzerland, where he had a lot of material to learn quickly. ③_______ Therefore, he wanted to find a way to help him keep track of things he couldn't remember. He invented a software program that allowed him to create a document that had links to other documents. He continued to develop his idea through the 1980s. He wanted to find a way to connect the knowledge and creativity of people all over the world.
④_______ After the Web came into being, the number of Internet users started to grow quickly. However, Berners-Lee is not completely happy with the way the Web has developed. He thinks it has become a passive tool for so many people, not the tool for creativity that he had imagined.
⑤_______ He answers questions he is often asked in the book, "What were you thinking when you invented the Web " "What do you think of it now " "Where is the Web going to take us in the future "
A.He had a poor memory for facts.
B.Without the Web, our life would be different.
C.In 1991, his project became known as the World Wide Web.
D.Most people have never heard of Tim Berners-Lee.
E.It was his parents who inspired Tim Berners-Lee to create the World Wide Web.
F.In 1999, Berners-Lee published a book called Weaving the Web.
G.The creation of the Web is so important that some people compare Berners-Lee to Johann Gutenberg.
8．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。
Social Media
Social media can be defined (解释) as web-based and mobile media that are used for people to interact, connect and communicate with each other. It often involves the creation and sharing of content (writing, pictures, and video) that people make themselves, mostly through the Internet.
①__________ The first type involves people getting together to work on a project, for example, Wikipedia. Blogs and micro-blogs (such as Twitter) are another type of social media. There are other websites like YouTube that allow people to share content such as pictures, articles or videos. ②__________ These sites allow people to stay in touch with friends, make new ones and join communities. Facebook is an example of this type. Many people like to play games on the Internet and, yes, there are social media games as well. These games allow gamers to interact with each other and play with or against other gamers. ③__________ The final type of social media is websites like Second Life, where people can create avatars (化身) and use and create objects, as if they were in the real world.
Social media are different from traditional media. With social media, many individual people in different places create content.
Another difference is that people who produce content in social media don't need very special skills. ④__________ It takes only a few minutes to write a twitter post, for example.
⑤__________ But whatever you might think, social media is here to stay.
A. World of Warcraft is a good example.
B. And social media content can be produced much faster.
C. In general, there are six different types of social media.
D. Another type of social media are social networking sites.
E. Some people think social media is good and some think it is bad.
F. In traditional media, people need special skills to produce something.
G. Social media is one of the fastest-growing industries in today's world.
三、语法填空
9．The headmaster gave a very________ speech yesterday, which made us deeply________ (inspire)
10．The course will offer remote access _______course materials via the Internet.
参考答案
1．答案：B
解析：细节理解题。根据第三段中的“Nearly a quarter of older Americans are on Facebook”及倒数第二段中的“The findings are based on a telephone survey of 1,863 adults.”可知在接受电话调查的1,863人中,近四分之一的人使用Facebook,也就是约460人。故选B。
2．答案：A
...older。倒数第二段中的“...older adults are aware of the latest technology. Eighty-three percent had heard about the Apple iPad and 11 percent intended to buy one.”表明年长的美国人知道最新的技术,并以苹果的iPad为例进一步说明,所以许多年长的美国人对新产品持开放的态度。故选A。
3．答案：C
解析：主旨大意题。第一段主要指出超过25%的50岁及50岁以上的美国人通过一些社交平台与外界保持联系,第二段引用Kevin Donnellan的话指出越来越多的网络社交正成为美国50岁以上的人日常生活的一部分,第三段主要是从他们在Facebook上做什么、与谁联系、是如何开始使用社交网站的、不使用互联网的人占很小的一部分这些方面展开介绍,第四段指出了调查结果的根据以及年长的美国人不仅使用Facebook和Twitter保持联系,还知道一些最新的技术,最后一段主要说明尽管互联网在50岁以上的人群中很受欢迎,但他们仍然主要通过报纸和杂志来获取新闻。所以文章主要介绍了网络社交在年长的美国人中日益受欢迎。故选C。
4．答案：B
解析：推理判断题。文章主要介绍了网络社交在年长的美国人中日益流行这一现象,这种话题最有可能出现在报纸上。故选B。
5．答案：1-4 DBDC
解析：1.句意理解题。文章首句讲到现在互联网对人类生活来说至关重要，接着列举了我们日常生活中用到互联网的方方面面。在第二段作者引用了that train has left the station这句话，紧跟着又提出疑问:过度使用互联网会不会影响我们的健康？由此可知这句话在此处所要表达的意思就是:我们不能返回到没有互联网的生活了。
2.段落大意题。根据文章第三段的内容可知，本段讲的是髙血压的种种危害。
3.推理判断题。根据文章最后一段Ms Cassidy-Bushrow adds that it is important for teens to take regular breaks from their computers or smartphones."可知，Andrea Cassidy-Bushrow认为上网时隔一段时间就休息一下是很有必要的。
4.主旨大意题。文章主要讲的是一项研究发现青少年过度使用互联网可能会导致髙血压，由此可知选C项作为文章标题最佳。
6．答案：1-4 ADCC
解析：1.词义猜测题。destroy破坏；change改变；continue继续； strengthen 加强。根据上文"It's about how you use it to improve your relationships with other people in real life."可推断，此处指 我们往往过于依赖科技和社交媒体，以至于它们实际上会破坏那些关系。tear apart意为"使分裂、分开"，故选A。
2.细节理解题。根据最后一段中"Social media is not a specific place on the Internet or just a thing you use to see what other people are doing. It's all about creating meaningful experiences and relationships wherever you may be."可知，作者认为，社交媒体应该是用来加强有意义的关系的网络平台的统称，故选D。
3.推理判断题。根据倒数第二段中"Social media needs to have an "IRL" factor—an Internet slang standing for "In Real Life". It should affect how a person thinks or acts offline. After all, social media shouldn't be an end in itself. It was built to enhance your actual social life, in real life."可推知，在微博上读了一篇故事后，和朋友一起参观博物馆含有IRL因素，故选C。
4.主旨大意题。根据最后一段中"It's all about creating meaningful experiences and relationships wherever you may be."可推断，作者写这篇文章的目的是呼吁读者利用社交媒体来促进真实的社会生活，故选C。
7．答案：1-5 DGACF
解析：is...一句中的"He is..."可知此处提到了一个人的名字，且根据行文逻辑可知本题应该选D项。
2.本句应该和下文的Gutenberg有关，故本题选G项合理。
3.根据下文的信息"he wanted to find a way to help him keep track of things he couldn't remember"可知，本句应该和记忆力有关，故选A项。
4.根据下文的信息"After the Web came into being"可知本空应该和创立万维网有关,故本题C项正确。
5.解题思路下文的信息"He answers questions he is often asked in the book"可知，本句应该和一本书相关，故F项正确。
8．答案：C; D; A; B; E
解析：1.下文对几种社交媒体进行了详细的介绍，所以这里应该进行一个总的介绍，C项（一般而言，有六种不同的社交媒体。）符合语境，所以选C。
2.根据"This site allows people to stay in touch with friends, make new ones and join communities. Facebook is an example of this type."可知这里的意思是"另外一种社交媒体是社交网站"，所以选D。
3.根据"Many people like to play games on the Internet and, yes, there are social media games as well. These games allow gamers to interact with each other and play with or against other gamers."可知这里在谈论电脑游戏，A项（魔兽世界就是一个好例子。）符合语境，所以选A。
4.根据"It takes only a few minutes to write a twitter post, for example."可知这里指社交媒体的内容创作得更快，B项符合语境，所以选B。
5.根据"But whatever you might think, social media is here to stay."可知这里在表达对社交媒体的看法，E项（有些人认为社交媒体是好的，有些人认为社交媒体是不好的。）符合语境，所以选E。
9．答案：inspiring; inspired
解析：
10．答案：to
解析：考查介词。句意:该课程将通过互联网来提供可远程访问的课程资料。名词access常与介词to连用,表示"使用或见到……的机会/权利"。Unit 3 The Internet Discovering Useful Structures—高一英语人教版（2019）必修第二册课时优化训练
一、阅读理解
1． Today almost everyone knows computers and the Internet. If I ask you what is the most important in your life, maybe you will say computers and the Internet.
The first computer was made in 1946. It was very big but it worked slowly. Today computers are getting smaller and smaller. But they work faster and faster. What can computers do A writer has said, "People can't live without computers today."
The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, write letters, do shopping, play games or make friends.
Many students like the Internet very much. They often surf the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don't know their real names, ages, and even sex(性别). They are so interested in making the "unreal friends" that they can't put their hearts into study. Many of them can't catch up with others on many subjects because of that.
We can use computers and the Internet to learn more about the world. But at the same time, we should remember that not all the things can be done by computers and the Internet.
(1).The Internet can not be used for _______.
A.studying B.shopping
C.thinking D.playing
2.When the first computer was invented, it was _______.
A.large and worked quickly
B.small and worked slowly
C.large but worked slowly
D.small but worked quickly
3.The Internet was born in about _______.
A.1960 B.1970
C.1980 D.1985
4.What does the writer think of the Internet
A.It is terrible.
B.It can make students study harder.
C.It is not good for students.
D.It is helpful, but we can't do everything on it.
2． The Internet brings us many advantages.
With the Internet, people can send and receive e-mails. On the Internet, people can skim over news. Using the Telnet, the user anywhere on the Internet can log into any other machine on which he has an account. It is possible to use the FTP program to copy files from one machine on the Internet to another.
But the Internet also brings us troubles.
Internet use seems to cause a fall in psychological (心理的) health, according to research at Carnegie Mellon University. Even people who spent just a few hours a week on the Internet experienced more depression and loneliness than those who logged on less often, the two-year study showed. And it wasn't that people who were already feeling bad spent more time on the Internet, but that using the Net actually seemed to cause the bad feelings.
Researchers are puzzled over the results, which were completely opposite to what they had expected. They expected that the Net would prove socially healthier than television, since the Net allows users to choose their information and to communicate with others.
The fact that Internet use reduces time used for family and friends may be the reason for the drop in health, researchers said. Faceless, bodiless "virtual" (虚拟的) communication may be less psychologically satisfying than actual conversations, and the relationships formed through it may not be so deep. Another possibility is that exposure to the wider world through the Net makes users less satisfied with their lives.
"But it's important to remember this is not about the technology; it's about how it is used," said one of the researchers. "It really points to the need for considering social factors (因素) when you design new inventions."
(1).The writer mainly wants to tell us that _______.
A.the Internet can bring people many advantages
B.the Internet use may cause psychological problems
C.the Internet users are not satisfied with their lives
D.we shouldn't use the Internet
(2).Why are the researchers puzzled over the results
A.Because the results were completely different from what they had thought.
B.Because the Net proved socially healthier than television.
C.Because the Internet users were all healthier.
D.Because the Internet users experienced less depression and loneliness.
(3).What may be the reasons why the Internet use causes a fall in psychological health
A.Internet use reduces time used for family and friends.
B.Virtual communication is less psychologically satisfying than actual conversations.
C.Exposure to the wider world through the Net makes users less satisfied with their lives.
D.All of the above.
(4).According to the passage, which of the following is TRUE
A.Users anywhere on the Internet can log into any other machine.
B.The two-year study showed that using the Net seemed to cause the bad feelings.
C.People who are already feeling bad spend much more time on the Internet.
D.Relationships formed through the Internet are usually deep.
3． They like using the Internet. They have lots of pocket money to spend. And they spend a higher proportion of it online than the rest of us. Teenagers are just the sort of people an online seller is interested in, and the things they want to buy—games, CDs and clothing—are easily sold on the Web.
But paying online is a tricky business for consumers who are too young to own credit cards. Most have to use a parent's card. They want a service that allows them to spend money. That may come sooner than they think: new ways to take pocket money into cyber (网络的) space are coming out rapidly on both sides of the Atlantic. If successful, these products can stimulate (刺激) online sales.
In general, teenagers spend huge amounts: $153bn (billion) in the US last year and ￡20bn annually in the UK. Most teenagers have access to the Internet at home or at school — 88 percent in the US, 69 percent in the UK. According to the Jupiter Research, one in eight of those with Internet access has bought something online—mainly CDs and books.
In most cases, parents pay for these purchases with credit cards, an arrangement that is often unsatisfactory for them and their children. Pressing parents to spend online is less productive than pressing on the high street. They are more likely to ask "Why " if you ask to spend some money online.
One way to help teenagers change notes and coins into cyber cash is through prepaid cards such as Internet Cash in the US and Smart cards in the UK. Similar to those for pay-as-you-go mobile telephones, they are sold in amounts such as ￡20 or $50 with a concealed (隐藏的) 14-digit number that can be used to load the cash into an online account.
1.What does the word "They" in paragraph 1 refer to
A.Sellers.
B.Buyers.
C.Teenagers.
D.Parents.
2.According to the passage, which of the following statements is TRUE
A.More than half of the teenagers in the US and the UK have Internet access.
B.Teenagers pay for goods online with their own credit cards.
C.Most teenagers in the US and the UK have bought something online.
D.Teenagers found it easier to persuade parents to buy online than in a shop.
3.A new way to help teenagers shop online is to use _______.
A.a new machine
B.special coins and notes
C.prepaid cards
D.pay-as-you-go mobile phones
4.What is the passage mainly about
A.Online shopping traps.
B.Internet users in the US and the UK.
C.New credit cards for parents.
D.The arrival of cyber pocket money.
二、语法填空
4．All the preparations for the task _____(complete), and we are ready to start.
5．Her novels _____(translate) into many foreign languages so far.
三、书面表达
6． 众所周知，学生使用手机越来越普遍，但是学生使用手机的消极作用也日渐凸显。请你根据所给信息，以The negative effects of using cellphones on students为题目写一篇英语短文：
1.长时间使用手机危害身体健康，特别是视力；
2.依赖打电话、发短信，学生与亲友间很少面对面交流；
3.上课发短信、看视频，学生成绩快速下降；
4.沉迷于玩手机，学生没有时间进行体育锻炼；
5.家长和老师应该适当限制学生使用手机。
注意:
1.可以适当增加细节，以使行文连贯；
2.词数:80左右。
The negative effects of using cellphones on students
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参考答案
1．答案：1-4 CCBD
解析：(1).细节理解题。第三段最后一句提到我们可以通过互联网来看书、写信、购物、玩游戏、交友等，但未提到用互联网来思考问题。由常识也可知，互联网不能代替人类的思考。
(2).细节理解题。由第二段第二句可知，第一台计算机体积大但是运行速度很慢。
(3).数字计算题。结合第二段首句及第三段第二句可知，计算机诞生于1946年，约25年之后（即1970年左右）出现互联网。
(4).细节理解题。由最后一段可知，互联网虽然功能先进，但并不是万能的。D项表述与之相符。
2．答案：1-4 BADB
解析：(1).主旨大意题。文章虽然谈论了网络的优点，但从其篇幅和重点来看，文章侧重于谈论使用网络产生的一些问题，主题句在第四段。作者其实是想提醒我们使用网络可能会损害心理健康。
(2).细节理解题。由第五段第一句"Researchers are puzzled over the results, which were completely opposite to what they had expected."可知令研究人员疑惑的是研究结果与他们预期的完全相反。
(3).细节理解题。由第六段可知A、B、C三项都为原因。
(4).细节理解题。由第二段第三句"Using the ...and the user anywhere on the Internet can log into any other machine on which he has an account."可知A项的成立是有前提的；由第四段第三句"And it wasn't that people who were already feeling bad spent more time on the Internet, but that using the Net actually seemed to cause the bad feelings."可知C项错；由第六段中的"...and the relationships formed through it may not be so deep."可知D项是错的。故选B。
3．1.C1.C2.A2.A; 3.C; 4.D
解析：1. 根据文章第一段后部分"Teenagers are just the sort of people an online seller is interested in, and the things they want to buy-games, CDs and clothing-are easily sold on the Web."可看出指的是青少年。
2. 根据文章"Most teenagers have access to the Internet at home or at school-88 percent in the US, 69 percent in the UK."可看出答案。
3. 根据文章"One way to help teenagers change notes and coins into cybercast is through prepaid cards such as Internet Cash in the US and Smart cards in the UK"可得出答案。
4. 全文讲的是青少年上网问题,以及解决的建议。可看出A,B,和C不符合文章的内容。所以答案为D。
4．答案：have been completed
解析：
5．答案：have been translated
解析：考查现在完成时的被动语态以及主谓一致。根据so far可知应用现在完成时,又因为novels和translate之间是被动关系,所以用现在完成时的被动语态。主语novels为复数,故填have been translated。句意:到目前为止,她的小说已经被翻译成了多种外语。
6．答案：
The negative effects of using cellphones on students
As we all know, more and more students use cellphones in school nowadays. Though a cellphone is a useful tool, it could have lots of negative effects on students.
Firstly, using cellphones for a long time does harm to students' health, especially to their eyesight. Secondly, by making calls and sending messages, students seldom communicate with relatives and friends face to face. Thirdly, some students send messages or watch videos instead of listening to teachers in class. As a result, their school grades go down rapidly. Last but not least, students who play with cellphones often have less time to play sports.
Therefore, parents and teachers should limit children's using cellphones.
解析：
