北师大版（2019）必修 第二册Unit 4 Information technology Lesson 1 Avatars 课件(共25张PPT)

(共25张PPT)
Unit 4 Information Technology
Lesson 1 Avatars
教材分析
本课是一节阅读课，阅读语篇是一篇说明文，结构清晰，介绍了虚拟形象从兴起到被广泛使用的历史发展过程，揭示了人们选择虚拟形象背后所隐含的性格特征，以及不同虚拟形象的功能和意义。同时，文本提到使用虚拟形象社交带来的利与弊，引导学生反思人们在不断完善和创新自己虚拟形象的同时，也要关注与现实生活的距离和网络信息安全问题。
教学目标
在本课学习结束时，学生能够：
1. 概括和提炼文本中关于虚拟形象的主要信息；
2. 找出并梳理虚拟形象在不同方面的具体影响；
3. 反思和评价虚拟形象与人们的关系，并对网络安全问题进行辩证思考。
教学重难点
【教学重点】
1. 通过阅读，获取并梳理文章结构和主要虚拟形象信息；
2. 通过探讨虚拟形象的发展与功能，让学生认识到虚拟形象与人物性格及创造力的关系，引导学生正确使用虚拟形象，提升网络社交的安全意识。
【教学难点】
学生能够使用恰当的语言谈论虚拟形象的发展历程和功用，从辩证的角度合理看待虚拟形象，确保社交安全。
Have you ever thought about the technology can exchange the figures in art
Watch a video
Warming-up
What does “avatar” mean
An avatar is a personalized graphical illustration that represents a computer user, or a character or alter ego (另一个我) that represents that user. An avatar can be represented either in three-dimensional form (for example, in games or virtual worlds) or in two-dimensional form as an icon (图像) in Internet forums and virtual worlds.
文化知识——如何制作个人虚拟形象
Avatar Maker
What is it
It is a free online tool which can help you create an avatar that looks just like you. There is no software to download and you can make as many avatars as you wish.
文化知识——如何制作个人虚拟形象
First, you’ll need to select your gender.
Step 1
Once you select your gender, you’ll see the default avatar. At the top of the page, you’ll see four choices for the overall look of the avatar.
Step 2
How does it work
文化知识——如何制作个人虚拟形象
Step 3
Step 4
With your style selected, it’s time to customize your avatar so it looks just like you. There are a wide variety of options including facial shape,
eye size and shape, eye color, hair style and color, glasses, and even clothing and background.
How does it work
While you’re making customization choices, each feature will have various modifiers that appear underneath the avatar itself.
With these controls, you can make aspects larger or smaller, move them around, or change the color.
文化知识——如何制作个人虚拟形象
Attention:
If you make a mistake with this avatar maker, use the UNDO and REDO buttons to travel back or forward in time. If you feel like you’ve made too many mistakes, the RESET button will bring you back to the beginning. Don’t worry: if you accidentally hit the RESET button, just hit the UNDO button to go back to where you left off.
Undo
Redo
Reset
文化知识——如何制作个人虚拟形象
How do you download your avatar
Once you are happy with how your avatar looks, you can hit the DOWNLOAD button. You have three choices for your download:
PNG (200px)
PNG (400px)
SVG
200*200 (.png)
400*400 (.png)
vector format (.svg)
While-reading
Read the article and check how many of your questions are answered.
The article mainly talks about the following aspects.
Introduction /
definition
What is an avatar
An avatar is the digital identity one uses online.
A digital image that represents an Internet user.
Avatars
History /
development
Uses / purposes
of avatars
Different views
People use avatars to ________________.
You are going to read an article about avatars. What would you like to learn from it Write down your questions in the diagram.
Avatars
Design
Definition
History
Views
Uses
Meaning
Pre-reading
The first simple 2D avatars appeared in role-playing computer games.
Avatars were being used in web chats like instant messenger.
The Avatars you choose says a lot about your personality and avatars let you express yourself.
Avatars give you room for creativity. People can create avatars and create new identities that do not look or act like their real selves.
People spend so much time in virtual worlds that they are becoming afraid of meeting people in the real world.
People look forward to a time when their avatars will act like a real person and travel around bigger, more exciting virtual worlds.
Read the article again. Complete the information below.
Recalling
Complete the short text with information from the article.
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 _______________.
express yourself
identities
a selection
create your own images
room for creativity
a few concerns
in virtual worlds
a risk
cheat others online
a positive light
Observing
Read the sentences. Write P below the underlined parts that refer to the past and PF below the underlined parts that refer to the future in the past.
1. Yet very few people knew that future avatars would have such a wide variety of forms and uses.
2. 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.
3. Many Internet users realised that their avatars would be seen by many people, not just their friends.
P
PF
P
P
P
PF
PF
Observing
4. When the award-winning outreach program was launched in 2005, it
was believed that it would educate kids about energy use.
5. Greg Cross, the Chief Business Officer of Soul Machines, asserted that
kids who have grown up in this smart device era would adapt to new
technology quickly, and he was going to develop the concept of
digital humans in the area of education further.
P
P
PF
P
PF
PF
试比较以下两组时态：
Grammar—Past Future
一般将来时
过去将来时
Grammar—Past Future
概念：“过去将来时” 指的是以过去时间为基点将要发生的情况。比如，“I will go tomorrow. 我明天去。” 这个“明天”属于将来；如果说“I said that I would go the next day. 我说过第二天会去的。”这个“第二天” ，就是属于过去将来。
基本结构：
主语 + was/were going to + 动词原形
I was going to tell him, but he didn’t give me a chance.
我想要告诉他这些事的，但他没给我机会。
主语 + would + 动词原形
He said that he wouldn’t finish his work this afternoon.
他说他今天下午完成不了工作。
主语 + was/were + 现在分词
We were seeing each other later that day, but I had to phone and cancel.
我们本打算那天晚些时候见面的，但我打电话取消了。
主语 + was/were （about）+ 动词不定式
He said they were to leave at six.
他说他们将于6点出发。
Grammar Summary
was/were going to be/do
would be/do
比较was/were going to be/do”和“would be/do”结构
表示过去计划、安排要做的事
表示说话人根据当时的迹象推断将发生的事
表示过去的计划或打算，但因外界干扰而中断
多用于非正式场合或口语中
表示过去将来要发生的事
表示意愿或承诺要做的事
表示过去某个时期常见的情况或习惯性的动作
除用于口语外，多用于正式场合或书面语中
Grammar—Past Future
Exercise
Key:
1 was going to do
2 will be
3 √
4 would have shown
5 √
6 is about to start
7 √
8 was supposed; was about to ask
9 √
10 is to be used
11 √
12 would
fancy adj. 异常复杂的；精致的；绚丽的；昂贵的
Harry took me to a fancy restaurant for our anniversary.
哈里带我去一家高级餐厅庆祝我们的结婚纪念日。
What do you fancy doing, anyway
你想做什么呢
fancy v. 想要；想做
fancy doing sth. 设想做某事；想象做某事；喜欢做某事
The Key words
The Key words
more or less 有几分；约；大概
I was meeting these chaps who were mostly more or less my own age.
我见到了这帮小伙子，他们多数和我年龄相仿。
I suspect that he is more or less involved in the affair.
我怀疑他和这件事多少有些牵连。
a selection of 一系列；汇集了精选的
I did not know at the time that he had translated a selection of Han Shan poems, and he didn’t mention the fact.
那时我并不知道他曾翻译过寒山的诗歌，他自己也没提过。
selection n. 选择；挑选；被挑选的人（物）；可供选择的事物
The Key words
Assignment
Organize your group discussion into a short passage.
Try to use newly-learnt expressions as many as possible.
Thank You !