北师大版（2019）必修第二册Unit 4 Information technology Lesson 1 Avatars 课件（31张）

(共31张PPT)
UNIT 4 Information Technology
Lesseon 1 Avatars
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.
What is an avatar
Digital identities, known as avatars, are a key part of how people use the Internet to communicate and express themselves.
Warming-up
Look at the screenshot of our class WeChat group, choose one or two avatars and guess who its user is, then try to find your classmates and talk with her /him about your avatars. Describe your avatar and share the reason / story why you adopt it.
Guess and Talk
Example:
I used / adopted __________ as my avatar in order to / because ____________.
I use a cartoon character avatar instead of a photo to protect myself online.
In what way do you use them
Why do you use them
Lead-in
_______ ________ _________ _____
WeChat
TikTok
DingTalk
QQ
What kind of avatar do you use online
Why do you choose it
1. What kind of avatars do you use online
Comic image
Beautiful scenery
cute animal
2. Why do you choose it
As far as I am concerned , I use as
my avatar in order to/because _______.
To create a real identity
To avoid online safety risks
To protect myself
To trick others
To express myself freely
Avatars
虚拟形象
The avatar you choose says a lot about you. The article will help you understand your choice of avatars better.
say vt 表明（某人的性格或某物的特质）是......
say a lot about ...... 充分表明了......
Activity 1　Fast-reading for main ideas
Para. 1
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Match the main idea with each paragraph.
A. Nowadays, avatars are everywhere.
B. The history of avatars.
C. What are avatars
D. Different views on avatars.
E. Avatars are created to express themselves.
F. Avatars are created to show their personalities.
What is the text type of the passage
A. Narration (记叙文).
B. Argumentative essay (议论文).
C. Expository writing (说明文).
D. Practical writing(应用文).
Definition of avatars.
History of avatars.
Purposes of using avatars.
Views on avatars
√
1. 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, are a key part of how people use the Internet to communicate and express themselves.
过去分词短语做定语
宾语从句，做介词of 的宾语
Para. 1
These digital identities, known as avatars, are a key part of how people use the Internet to communicate and express themselves.
后置定语，修饰These digital identities, 和它是动宾关系
how引导的宾语从句，作介词of 的宾语
不定式作目的状语
Activity 3　Analyze the key points of the text
2. 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 late1990s, they had been used in web chats.
过去完成时的被动语态
How did avatars develop
In the 1980s
By the late 1990s
The first simple 2D avatars appeared in role-playing computer games.
Avatars had been used in web chats.
Para. 2
Para. 3
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.
when引导的时间状语从句
that引导的宾语从句
that引导的定语从句
宾语从句三大考点：语序、连接词、时态
(1)语序：宾语从句的语序必须是陈述语序 主语+谓语
(2)连接词
that, 无词汇意义不充当成分，一般可以省略
whether/ if “是否”
连接代词：who, whom, whose, which, what
连接副词：where, how, why, when
宾语从句考点：语序、连接词、时态
主现从不限 I believe that he is honest.
主过从必过 He said he wanted to stay at home
客观真理永一现 He said that the light runs faster than the sound.
(3)时态
3. 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”!
时间状语从句
宾语从句
定语从句
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 they give you lots of room for creativity.
过去将来时的被动语态
4. 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.
这是一个主从复合句， 其中两个that引导的定语从句均修饰同一个先行词avartars.
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.
。
5. 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.
定语从句
时间状语从句
Para. 6
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.
that引导的宾语从句
在虚拟世界里
so...that...引导的结果状语从句
as引导的原因状语从句
从正面的角度
期待；盼望
when 引导的定语从句，修饰a time, 在从句中作时间状语
6. 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.
虚拟形象的使用也引起了一些担忧。一些用户担心他们在虚拟世界中花费了太多时间，以至于开始害怕在现实世界中与人见面。使用多个虚拟形象也可能会带来风险，因为有人可能会在网上使用虚拟形象来欺骗他人。
tha引导宾语从句so...that... 为结果状语从句
as 引导原因状语从句
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.
但是，其他用户则以更为积极的态度看待虚拟形象。他们期待着有朝一日，自己的虚拟形象会像真人一样去环游更广阔、更精彩的虚拟世界。
when 引导定语从句，先行词为 a time
While-reading
Read the article again. Complete the information below.
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.
Post-reading
Complete the following paragraph with the words below.
personality, selection, creativity, source, page, hairstyles, fancy, images, characters
I read an article about avatars on a web 1 _____ yesterday. It was informative and interesting. I 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 favorite cartoon 5 __________. I like her because she is kind and helpful.
page
personality
selection
images
characters
Post-reading
personality, selection, creativity, source, page, hairstyles, fancy, images, characters
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.
creativity
fancy
hairstyles
source
Speaking
Pair Work
Ask and answer questions about avatars using the information in the table. Then introduce avatars to your partner.
1. What is an avatar
2. How have avatars developed over decades
3. How do people use avatars
4. What are people’s views on the use of avatars
Speaking
Work in groups and discuss the following questions.
1. Why do people obviously make their avatars look better than they do in real life
2. What does the writer mean by “the avatar you choose says a lot about your personality” Do you agree with the writer Give examples to support your opinion.
3. Can you give examples of the risks of using avatars
What can we do to prevent such risks
Notes
2. Most people create avatars that have similar features to their
personalities and that look ___________ like them and act like them.
more or less
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。
Notes
3. In most web chats, people choose an avatar from ____________
ready-made images, or create their own images.
a selection of
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