北师大版（2019）必修 第二册Unit 4 Information technology单元基础练习（含答案）

Unit4 单元基础练习
课本语法填空等
Lesson 1 用P8-9文章的信息完成短文 (P11)
Avatars are digital 1 that you use to represent yourself online. You can choose an avatar from 2_ of ready-made images, or 3 Although avatars haven't been around for long, they are widely used.
Avatars let you 4 and give you 5 . But the use of avatars has also caused 6 . Some users worry that they are spending too much time 7 that they are becoming afraid of meeting people in the real world. The use of several avatars can also be 8 , as people can use avatars to 9 . However, many people see avatars in 10 .
Lesson 3用下列的词填空 （P17）
friendship self-centered percent website smartphone online anything real-life
Some people believe that the Internet has many negative aspects. Talking to people 1 or having a 2 with someone you only talk to on the Internet isn't a replacement for 3 communication. While it can connect you with other people who use a 4 face-to-face contact with others is important to help you maintain healthy relationships. This argument is thought-provoking because it shows that people still need face-to-face communication with others today. In addition, spending too much time on the Internet can make you 5 because you can become obsessed with popularity and gaining followers. Finally, you need to be careful with various 6 because you can never be 100 7 sure that 8 you read online is true.
Check your progress (P24) 适当形式填空
The development of information technology
Information technology has developed in ways that people would never have imagined. In the 1980s, telephones started to become popular in daily life. Nobody at that time imagined that 20 years later people 1 (have)phones in their pockets and 2 (use)them for many functions other than just making calls. In 1983, there were only 200 computers connected to the Internet. At that time, even scientists didn't
realise that one day people 3 (be able to)connect with family and friends anywhere through video chats. And most certainly, people back in the 1980s 4 (not understand)that clothing and delicious food 5 (be send)to their homes by simply using an app on the phone.
适当形式填空（P24）
variety image safety concern digital identity blog chat virtual selection personality
The Use of Avatars
In our class, every student has more than two avatars, which are images used as 1 online. There are a wide 2 of forms and uses of avatars among our classmates. Most students choose avatars from a 3 of ready-made images, but some students design avatars in their own 4 . More than half of the students want to show different aspects of their 5 through their avatars. Our classmates mainly use avatars for web 6 , 7 and in 8 games. But some classmates expressed 9 about online 10 when using avatars. This issue is something that we need to pay attention to in the future.
用下面短语的适当形式填空（P25）
personal interests and needs learning materials call for mobile devices find directions set up the latest technologies for short put in solve real-world problems
The Use of Apps
In the survey among our classmates, all students use software applications(called apps 1 ).They typically use apps on smartphones or 2 . Students agree that apps can help them take part in a whole range of activities. They usually use apps to search for learning resources, find popular restaurants, 3 taxis, to certain places, and order food.
Educational apps are the type of apps most frequently used among our classmates. They allow them to learn at their own pace anywhere. They can choose online teachers and subjects according to their 5 . Also, they can share 6 with other users of the same app.
Nearly one third of the students have tried apps with 7 like VR, AR and MR. They believe that new technologies can be used to help people 8 . What students dislike is that in order to use apps these days, they are often required to 9 an account and 10 personal information. They worry about the safety of this.
选词填空（P25）
self-centred real-life online smartphone percent maintain something anyone
How people changed their attitude towards chatting online
Yuanyuan is a senior secondary school student. She never liked chatting with people online. She thought 1 communication wasn't worth spending time on and it made people more 2 . All her friends seemed to spend about 90 3 of their time talking to friends on the Internet and only about 10 percent talking to them in real life. Yuanyuan couldn't understand it at all. Her best friend Tingting agreed with her and felt that 4 communication is important.
Then, 5 happened that changed how she felt about online communication. Yuanyuan moved to Canada with her family and her 6 became her most valuable possession. By chatting to each other online and using a video chat app, Yuanyuan and Tingting could 7 their friendship even though they were thousands of miles apart. From then on, neither of them criticised 8
for having online friendships.
Workbook
Lesson 1 选词填空（P78）
personality selection creativity source hairstyles fancy images characters
I read an article about avatars on a web 1 yesterday. It was very informative and interesting.
agree with it saying that your choice of avatars says a lot about your 2 . I chose my avatar
from a 3 of ready-made 4 . She is one of my favourite cartoon 5 . I like her because she is kind and helpful.
My cousin Wang Ming is very creative. He finds that avatars give him lots of room for 6 . He has created several avatars for different occasions. He dressed them in 7 clothes with beautiful 8 and they all act more or less like him. But the article warns that the use of several avatars can be a 9 of risk.
Lesson 2 Complete the text using the correct form of the words below.
chat app account download deliver press virtual device
My mother had never used a mobile phone until she received one for her birthday this year. Since
then, she has been addicted to the Internet, using different kinds of software applications on her mobile 1 . She spends a lot of time each day exploring websites and 2 . with other people online. She has set up her own email 3 and she does most of the shopping online through an 4 . Instead of going to supermarkets, nowadays she just 5 a button and then her orders are 6 the next day. At first, my father had some concerns that she was spending too much time in 7 worlds, but now he sees how happy she is. She even 8 some materials that can help my father with his work, so now he's very happy, too! We are all very proud of her as she has proven that it's never too late to learn a new skill.
用下列的适当形式填空（P79）
become appreciate be able to not have to
From the time I met Alicia Tang. I knew she 1 the next big thing in the technology world. A fifteen-year-old app developer, she was confident that her first app 2 one 4 the biggest selling in the world. Now at only eighteen, she has accomplished her goal as her onine shopping comparison app has millions of downloads. "I felt it was going to be a success because I knew that people 3 the fact that they 4 spend so much time searching for products they wanted," says Alicia. "When I was going to launch the app. I spoke to lots of experts and app developers who gave me great advice and guidance. Because I had the support of so many people, I knew I 5 make a successful app," she says.
Translate the sentences into English. (P80)
1. 在网络世界,你可以创设自己的形象,并且拥有新的个性。
_____________________________________________________________________________________
2. 开发应用软件最困难的是找到人们的需求,解决现实世界中的问题。
_____________________________________________________________________________________
3. 面对面交流和网络交流都有助于增进友谊和理解。
_____________________________________________________________________________________
4. 很多网民意识到,他们的头像会被其他人看到。
_____________________________________________________________________________________5. 一些教育类应用程序使学生有可能根据个人兴趣和需求选择网络教师和科目。
_____________________________________________________________________________________6. 网络的发展使人与人之间的交流更加便利。
_____________________________________________________________________________________
参考答案：
P11
1. identities 2. selection 3. create your own images 4. express yourself 5. lots of room for creativity 6. a few concerns 7. in virtual worlds 8. a risk 9. cheat others online 10. a more positive light
P17
1. online 2. friendship 3. real-life 4. smartphone 5. self-centred 6. websites 7. percent 8. anything
P24
would use 2. would have 3. would be able to 4. would understand 5. would be sent
1. digital identities 2. variety 3. selection 4. image 5. personalities 6. chats 7. blogs 8. virtual 9. concerns 10. safety
P25
1. for short 2. mobile devices 3. call for 4. find directions 5. personal interests and needs 6. learning materials 7. the latest technologies 8. solve real-world problems 9. set up 10. put up
1. online 2. self-centred 3. percent 4. real-life 5. something 6. smartphone 7. maintain 8. anyone
P78.
1 chat 2 personality 3 selection 4 images 5 characters 6 creativity 7 fancy 8 hairstyles 9 source
1 device 2 chatting 3 account 4 app 5 presses 6 delivered 7 virtual 8 downloaded
P79
1 would become 2 would become 3 would appreciate 4 wouldn't have to 5 would be able to
P80
1 In the virtual world, you can create your own image and a new personality.
2 The most difficult thing about developing apps is finding out what people need and solving
real-world problems.
3 Face-to-face contact and online communication all help develop friendship and
understanding.
4 Many Internet users realised that their avatars would be seen by others.
5 Some educational apps allow students to choose their online teachers and subjects
according to their personal interests and needs.
6 The development of the Internet has made communication among people more convenient.
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