人教版（2019）必修第二册Unit 3 The internet 限时练（含答案）

必修2 Unit 3 The Internet 限时练
一、完形填空
In many ways, Gitanjali Rao is an ordinary 11-year-old, lively and chatty, yet her scientific spirit makes a huge difference. Last month, she 1 the top prize at the Discovery Education 3M Young Scientist Challenge for her invention.
What 2 Gitanjali’s work was that her city faced a water emergency with too much lead in its water. “The idea didn’t 3 to me until I saw my parents try to do water tests. The test strips may show inaccurate results, which weren’t very 4 .”
She recalls. She then searched for suitable materials with continued efforts and 5 found that carbon nanotube (纳米管)sensors can be used to sense chemicals. Gitanjali 6 to build a small blue housing using the 3-D printer at her school with computer chips and a battery inside. A free app, which Gitanjali designed under 7 from her computer science teacher, gives instant 8 and sends the data to a linked phone through an attached device.
The process of designing her project wasn’t always 9 , though. Kathleen Shafer, a scientist paired with Gitanjali as her teacher in summer, 10 along the way. In the award ceremony, Gitanjali also 11 her parents with constant support and 12 to try “crazy ideas”. Gitanjali received $25, 000 to further develop her program along with the great 13 of winning the contest. According to Shafer, who 14 Gitanjali, “she shows a lot of motivation to solve 15 issues through science”.
1．A．earned B．designed C．offered D．made
2．A．exposed B．improved C．defined D．inspired
3．A．stick B．belong C．occur D．apply
4．A．simple B．reliable C．predictable D．creative
5．A．initially B．immediately C．temporarily D．eventually
6．A．managed B．promised C．pretended D．happened
7．A．observation B．command C．instruction D．control
8．A．access B．results C．decisions D．approval
9．A．optional B．complete C．continuous D．smooth
10．A．changed B．risked C．helped D．followed
11．A．stresses B．credits C．impresses D．provides
12．A．encouragement B．request C．struggle D．pressure
13．A．fortune B．intention C．honor D．potential
14．A．keeps up with B．gets along withC．takes care of D．speaks highly of
15．A．commercial B．practical C．academic D．systematic
二、阅读理解
A
The Internet Harms Friendships
While the Internet can bring people closer together, it can also harm friendships.
Firstly, talking online is no replacement for face-to-face contact - images really cannot replace a real-life smile or hug. According to a parenting expert, Denise Daniels, communicating through a screen makes it more difficult for children to concentrate or show kindness to others. As we know, important social skills are developed through direct contact with other people. It is these skills that enable us to develop lifelong friendships.
Secondly, the Internet can make people self-centred - not thinking of anyone or anything but themselves. For example, instead of having proper conversations with their friends, some people are only concerned with their online popularity-How many "likes" did I get How many followers do I have - though we know that the number of "likes" or followers cannot compare to having long- term and rewarding friendships. In addition, a lot of the content posted on social media is shallow or minor(不重要的). Posts about funny cat images do not necessarily help form meaningful relationships. Thirdly, online relationships may not be what they appear to be. Friendships are built on the basis of trust, and with online communication you can never be 100 percent sure that the people you are chatting to are being honest about who they are. Because of this, going online can be particularly dangerous for people who are easily influenced or too trusting.
In my opinion, friends should focus more on face-to-face communication, and less on online communication. This is the best way to maintain healthy relationships.
1. According to the passage, what does Denise Daniels suggest about children's ability when communicating through a screen
A. They are better at concentrating. B. They find it harder to show kindness.
C. They develop strong social skills. D.They are more likely to make lifelong friends.
2. What is one of the drawbacks（缺点） of online relationships mentioned in the passage
A. They always lead to long-term friendships.
B. People can be certain about others' honesty.
C. It's difficult to make out people's identities.
D. Online communication forms meaningful relationships.
B
With the rapid development of our society, more and more people are fond of online shopping for its convenience. Online shopping has been a heated fashion. But different people have different views on this point. After all, every coin has two sides.
Online shopping has a lot of advantages. Nowadays,the Internet has become a must. It is convenient to shop online. People depend on online shopping as it caters for those who are busy with work or other things. Instead of shopping in the traditional way, online shopping allows companies and consumers to make their business deals over networked computers,24 hours a day and seven days a week without having to leave their homes or offices. Besides, it can help us save money. From online shops, we can buy things which are cheaper than what we buy in the physical stores. What's more, it contributes to the further development of the Internet.
However,it is also a risk to do online shopping because we may be cheated by the dishonest shopkeepers. Sometimes the quality of what we buy online is much worse than we could imagine. Take buying a shirt as an example: you cannot try it on when you buy it online. Therefore, the colour may be not the same as what you see on the web page,and the size may be too large or too small.
When we are shopping online, we should keep wise to prevent us from being cheated. And we will find that online shopping has more advantages than disadvantages.
3. What is a major advantage of online shopping mentioned in the article
A. It allows people to try on clothes before buying.
B. It contributes to the development of the Internet.
C.It requires people to leave their homes.
D.It is only suitable for those who are busy.
4. According to the article, what is one potential risk of online shopping
A. It is always more expensive than physical stores.
B. The quality of products may be worse than expected.
C. Online shops do not provide refunds.
D. Shoppers can't check the product details online.
5. What advice does the article give to people who shop online
A. To always buy from well-known websites.
B. To never trust online reviews.
C. To be wise and cautious to avoid being cheated.
D. To only shop during certain times of the day.
C
When you are online, you can be anyone or anything. You can create your own image and a new personality. These digital identities, known as avatars(头像、图标、虚拟替身), are a key part of how people use the Internet to communicate and express themselves.
The first simple 2D avatars appeared in role-playing computer games in the 1980s. Yet, very few people knew that future avatars would have such a wide variety of forms and uses. By the late 1990s, they had been used in web chats.
When people started creating their own avatars, they discovered that they were going to have the power to create new identities that did not look or act like their real selves at all. They could dress their avatars in fancy clothes, or they could try being someone of the opposite sex, and call themselves "Andy" instead of "Anna"! When Internet users realised that their avatars would be seen by many people, not just their friends, they started having more than one avatar: a sensible one for work; a friendly, good-looking one for meeting people; and a silly one for having fun. Avatars let you express yourself and give you lots of room for creativity.
Of course, the avatar you choose says a lot about your personality. If your blog avatar is a picture of a cute cat, your message is "I like relaxing and having fun". Well-known cartoon characters or laughing monkeys say "I'm a really funny person". Most people create avatars that have similar features to their personalities and that look more or less like them and act like them.However, nearly all avatars are tall, young and nice-looking, so people obviously make their avatars look better than they do in real life.They also experiment with things like different hairstyles - which says a lot, perhaps, about what they want to look like.
Nowadays, avatars are everywhere. In most web chats, people choose an avatar from a selection of ready-made images, or create their own images. You can also use avatars that move around and talk when you type in your message. The avatars in online worlds can talk, walk and fly around, meet people, go shopping and attend classes.
The use of avatars has also caused a few concerns. Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of meeting people in the real world. The use of several avatars can also be a risk, as people can use avatars to cheat others online. However, other users view avatars in a more positive light. They look forward to a time when their avatar will act like a real person and travel around bigger,more exciting virtual worlds.
6. What is the main idea of the article
A. The history and development of avatars
B. The various forms and uses of avatars
C. The impact of avatars on people's real lives
D.The advantages and disadvantages of using avatars
7. What can we infer from the sentence "They could dress their avatars in fancy clothes, or they could try being someone of the opposite sex, and call themselves 'Andy' instead of 'Anna'!"
A. Avatars are used to express users' real personalities.
B. People only use avatars for fun and entertainment.
C. Avatars can only be used in web chats and online worlds.
D. Avatars can be dressed up and used to explore different identities.
8. According to the article, what do most people's avatars look like
A. They look exactly like their real selves.
B. They are tall, young, and good-looking.
C. They are silly and fun-looking.
D. They are well-known cartoon characters.
9. Which word could best describe the author's attitude towards avatars
Negative B. Subjective C. Objective D. Positive
三、七选五
The Internet Helps Friendships
1.____________
Firstly, the Internet makes communication much more convenient. You can stay in touch with friends no matter where you are or what you are doing. Using a smartphone, a tablet or a computer, 2._________.
Secondly, 3._________.Traditional ways of communicating, like letters and phone calls, can be limiting and take time. However, you can share photos, videos, news stories and websites with your friends online. You can give a brief response to a message with an emoji or a picture. 4._____.
Thirdly, online communication can actually bring people closer to each other. Nowadays, your friends are just a click away. Whenever someone needs help, friends from all over the world can immediately provide useful suggestions or information. 5.______ To me, this is a very thought-provoking argument, as it points out the benefits of online friendships.As Eileen Kennedy-Moore, an authority on the subject, points out, online friends"fill holes real-life friends can't".
Finally, I believe the Internet brings people closer together and makes communication with friends more convenient and interesting.
The Internet may harm friendships in many ways.
The Internet can help develop friendships in many ways.
you can be in contact at home and also when you are on the move.
It makes friends feel lonely and less hopeful.
the Internet has also made communication more fun.
There are so many online tools you can use to be creative.
This makes friends feel loved and cared for.
四、语篇填空
Much has been written about the wonders of the World Wide Web. There are countless articles telling us how the Internet has made our lives more convenient. We no longer have to wait in line1. ________carry cash around when we go shopping. We can get the most 2.______________(update) information from large databases. We can download software, documents, and 3.__________(image) whenever we need them. But the Internet has done much more for people simply make life more convenient. People's lives have been changed by online communities and social networks.
Jan Tchamani, an English teacher in Birmingham, UK,suddenly 4.____________(develop) a serious illness and had to quit her job. At age 50, she found herself out of work and 5. ______(stick) at home with only her computer to keep her company. After 6.____while, she discovered that7.____________(surf) the Internet could help her feel less lonely and bored. She could listen to music, watch films, play games,8.____________explore the world. She also joined an online group 9.____________she could talk about her problems and get support and advice from others. She realized that one of the greatest benefits of the Internet was its ability to remove the10.____________(distant) that usually exists between people.
She was11._______inspired by the people she met online that she decided to start12._____IT club to teach older people how to use computers and the Internet. She and her friends now organize13.____________(event) and collect money to pay for private teachers. Many people have been helped by the club. A 59-year-old man learnt how to apply14.____________work online and found a great job. Now 15._____he works and can take care of himself, his daughter has time to study at university. A 61- year-old woman16.____________was living alone has started a small online company together with two friends. She no longer feels lonely, and her company has become quite successful.
Jan has started taking online classes to learn more about how to use the Internet to make society better. She believes that it is highly important 17.________________(bridge) the digital divide and make sure that everyone has access 18.______the Internet and knows how to use new technology. Her next goal is to start a charity website19.____________(raise) money for children in poor countries.
Jan's life has been20.____________(great) improved by the Internet. “When you go through tough times, you meet others who are facing similar challenges," Jan says.“Thinking about other people's situations inspired me to offer help.”
班级_______________姓名______________ 学号_____________ 成绩_______________
必修2 Unit 3 The Internet 限时练
参考答案：
1．A 2．D 3．C 4．B 5．D 6．A 7．C 8．B 9．D 10．C 11．B 12．A 13．C 14．D 15．B
【导语】这是一篇记叙文。文章讲述了吉坦贾利·拉奥只是是一个11岁的普通人，活泼健谈，但她的科学精神却产生了巨大的影响，她因其发明获得了探索教育3M青年科学家挑战赛的最高奖项。
1．考查动词词义辨析。句意：上个月，她凭借自己的发明获得了探索教育3M青年科学家挑战赛的最高奖项。A. earned获得；B. designed设计；C. offered提供；D. made制作。根据下文“the top prize at the Discovery Education 3M Young Scientist Challenge for her invention.(探索教育3M青年科学家挑战赛的最高奖项)”可知，吉坦贾利·拉奥获得了这个奖项，故选A项。
2．考查动词词义辨析。句意：吉坦贾利的工作之所以受到启发，是因为她的城市面临着水资源紧急情况，水中铅含量过高。A. exposed暴露；B. improved改善；C. defined定义；D. inspired启发。根据下文“her city faced a water emergency with too much lead in its water(她的城市面临着水资源紧急情况，水中铅含量过高)”以及“The idea didn’t occur to me until I saw my parents try to do water tests.(直到我看到父母试着做水测试，我才想到这个主意)”可知，她的城市面临着水资源中铅含量过高这一问题使吉坦贾利受到了启发，故选D项。
3．考查动词词义辨析。句意：直到我看到父母试着做水测试，我才想到这个主意。A. stick刺；B. belong属于；C. occur想到；发生；D. apply申请。根据下文“until I saw my parents try to do water tests(直到我看到父母试着做水测试)”可推理出，作者在看到父母试着做水测试时，想到了主意，故选C项。
4．考查形容词词义辨析。句意：测试条可能显示不准确的结果，这不是很可靠。A. simple简单的；B. reliable可靠的；C. predictable可预测的；D. creative创造性的。根据上文“The test strips may show inaccurate results(测试条可能显示不准确的结果)”可知，测试条可能不可靠，故选B项。
5．考查副词词义辨析。句意：然后，她继续努力寻找合适的材料，最终发现碳纳米管传感器可以用来感应化学物质。A. initially最初；B. immediately立即；C. temporarily临时地；D. eventually最终。根据上文“She then searched for suitable materials with continued efforts(她继续努力寻找合适的材料)”以及下文“found that carbon nanotube sensors can be used to sense chemicals(发现碳纳米管传感器可以用来感应化学物质)”可知，上下文要表达的含义是：吉坦贾利经过不断的努力，最终发现了碳纳米管传感器，故选D项。
6．考查动词词义辨析。句意：吉坦贾利在学校用3D打印机建造了一个蓝色的小房子，里面有电脑芯片和电池。A. managed完成；B. promised承诺；C. pretended假装；D. happened发生。根据下文“build a small blue housing using the 3-D printer at her school with computer chips and a battery inside(建造了一个蓝色的小房子，里面有电脑芯片和电池)”可知，吉坦贾利成功地建成了小房子，故选A项。
7．考查名词词义辨析。句意：吉坦贾利在她的计算机科学老师的指导下设计了一个免费的应用程序，该应用程序可以提供即时结果，并通过连接的设备将数据发送到链接的手机。A. observation观察；B. command命令；C. instruction指导；D. control控制。根据下文“from her computer science teacher(来自于她的计算机科学老师)”可推理出是来自于她的计算机科学老师的指导，故选C项。
8．考查名词词义辨析。句意：同上。A. access入口；B. results结果；C. decisions决定；D. approval同意。根据下文“sends the data to a linked phone through an attached device.(通过连接的设备将数据发送到链接的手机)”可知该应用程序能提供即时的结果，故选B项。
9．考查形容词词义辨析。句意：不过，她的项目设计过程并不总是一帆风顺。A. optional可选择的；B. complete完整的；C. continuous连续的；D. smooth光滑的；顺利的。根据下文“Kathleen Shafer, a scientist paired with Gitanjali as her teacher in summer, helped along the way.( Kathleen Shafer是一名科学家，她在夏天与吉坦贾利搭档担任她的老师，一路上她都在帮忙)”可知，吉坦贾利的项目设计需要老师的帮忙，并不是一帆风顺的，故选D项。
10．考查动词词义辨析。句意：Kathleen Shafer是一名科学家，她在夏天与吉坦贾利搭档担任她的老师，一路上她都在帮忙。A. changed改变；B. risked冒险；C. helped帮助；D. followed跟着。根据上文“Kathleen Shafer, a scientist paired with Gitanjali as her teacher in summer(Kathleen Shafer是一名科学家，她在夏天与吉坦贾利搭档担任她的老师)”可知，Kathleen Shafer一直都在帮助吉坦贾利，故选C项。
11．考查动词词义辨析。句意：在颁奖典礼上，吉坦贾利还归功于她的父母不断支持和鼓励她尝试“疯狂的想法”。A. stresses强调；B. credits把……归于；C. impresses给……以深刻印象；D. provides提供。根据下文“constant support(不断支持)”可知，吉坦贾利把他的成功还归功于父母的不断支持，故选B项。
12．考查名词词义辨析。句意：同上。A. encouragement鼓励；B. request要求；C. struggle挣扎；D. pressure压力。根据上文“constant support(不断支持)”以及下文“try “crazy ideas”(尝试“疯狂的想法”)”可知，空白处应填表示“鼓励”含义的名词，故选A项。
13．考查名词词义辨析。句意：吉坦贾利获得了25000美元，用于进一步发展她的项目，并获得了赢得比赛的巨大荣誉。A. fortune命运；B. intention目的；C. honor荣誉；D. potential潜力。根据下文“winning the contest(赢得比赛)”可知，赢得比赛是一种荣誉，故选C项。
14．考查动词短语辨析。句意：Shafer对吉坦贾利评价很高，她说：“她表现出了通过科学解决实际问题的很大动力。A. keeps up with跟上；B. gets along with与……相处；C. takes care of照顾；D. speaks highly of高度赞扬。根据下文“she shows a lot of motivation to solve practical issues through science(她表现出了通过科学解决实际问题的很大动力)”可知，Shafer对吉坦贾利有着很高的评价，故选D项。
15．考查形容词词义辨析。句意：同上。A. commercial商业的；B. practical实用的；C. academic学术的；D. systematic系统的。根据第三段“She then searched for suitable materials with continued efforts and eventually found that carbon nanotube sensors can be used to sense chemicals.(然后，她继续努力寻找合适的材料，最终发现碳纳米管传感器可以用来感应化学物质)”可知，吉坦贾利是通过科学解决的实际问题，故选B项。
阅读理解
A篇 BC
B篇 BBC
C篇 BDBC
七选五 BCEFG
语篇填空
1.or 2.updated 3.images 4. developed 5.stuck 6. a 7.surfing 8.and 9.where 10.distance
11.so 12.an 13.events 14.for 15.that 16.who 17.to bridge 18.to 19.to raise 20.greatly