北师大版（2019）必修第二册Unit4 Information technology Lesson1Avatars 课文讲解课件(共24张PPT)

(共24张PPT)
Unit4 Information Technology
Lesson1 Avatars
What kind of avatar do you use online, a photo of yourself, a cartoon image or something else Why
Example:
I use a cartoon character avatar instead of a photo to protect myself.
导
Here are some people with different avatars. Which one do you want to make friends with Why
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
导
1. 结合“知识链接”翻译课文
2. 完成深入学习问题，并在原文中标记出你的依据
思 Self-Study
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.
动，介之后跟？
当你上网时，你可以是任何人或任何事物。你可以创设自己的形象，并且拥有新的个性。这些数字身份，被称作“虚拟形象”，这是人们利用互联网进行交流和表达自己的关键部分。
评
过去分词短语作定语
宾从
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.
二维虚拟形象最早出现在20世纪80年代的角色扮演电脑游戏中，当时，很少有人知道虚拟形象后来会有如此广泛的形式和用途。截至20世纪90年代末，虚拟形象就已经被用于网络聊天。
过去完成时的被动语态
动，介之后跟？宾从
评
过去将来时
3. 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.
动，介之后跟？
过去将来时
他们发现他们将有能力创造新的身份。这种身份在相貌和行为上可以与真正的自我完全不同。
宾从
v.发现
n.身份
名，代之后跟？
定从
评
根本不，完全不
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
评
评
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
4.When people realised that their avaters would be seen by many people, not just their friends, they started having more than one avater.
动，介之后跟？
宾从
过去将来时：would see 的被动语态
当人们意识到他们的虚拟形象会被很多人看到，不仅仅是他们的朋友时，他们就开始使用多个虚拟形象。
评
5.Most people create avaters that have similar features to their personalities and that look more or less like them.
名，代之后跟？
定从
与…有相似性
大多数人创设的虚拟形象与他们的个性有着相似的特征，看起来或多或少像他们。
评
6.You can also use avatars that move around and talk when you type in your message.
名，代之后跟？
定从
输入
你还可以使用在输入信息时，能够活动或说话的虚拟形象。
时间状语从句
评
7.Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of metting people in the real world.
动，介之后跟？
宾从
如此……以至于
一些用户担心他们在虚拟世界中花费了如此多的时间，以至于变得害怕在现实世界中与人见面。
害怕
评
8.They look forward to a time when their avater will act like a real person and travel around bigger, more exciting virtual worlds.
名，代之后跟？
定从
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、更激动人心的虚拟世界。
环游
评
You can also use avatars that move around and talk when you type in your message.
名，代之后跟？
定从
输入
你还可以使用在输入信息时，能够活动或说话的虚拟形象。
时间状语从句
评
2.Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of metting people in the real world.
动，介之后跟？
宾从
如此……以至于
一些用户担心他们在虚拟世界中花费了如此多的时间，以至于变得害怕在现实世界中与人见面。
害怕
评
3.They look forward to a time when their avater will act like a real person and travel around bigger, more exciting virtual worlds.
名，代之后跟？
定从
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、更激动人心的虚拟世界。
环游
评
Para 1
Para 2
Paras 3-4
Para 6
The development of avatars
Different views of avatars
The definition of avatars
The purposes of using avatars
Para 5
The current situation of avatars
1.Yet, very few people knew that future avatars would have such a wide variety of forms and uses.
2.When Internet users realised that their avatars would be seen by many people…
3.When people started creating their own avatars, they discovered that they were going to have the power to created new identities.
这些句子中都包含would＋ ______________，was/were going＋ ____________ 结构，表示从过去的某一时间来看 __________ 的动作。
do
to do
将来
过去将来时 (Past Future)
1.定义：过去将来时表示从过去某时看将要发生的动作或存在的状态
2.结构
would/should +V原
was/were going to+V原
was/were about to+V原
was/were to+V原
表否定：将来不会做某事
2.结构
would/should+not +V原
was/were+not going to+V原
was/were+not about to+V原
was/were+not to+V原
wouldn’t shouldn’t
wasn’t weren’t
3.用法
表示从过去的某个时间看将要发生的事，常用于主句为一般过去时的宾语从句中（主过从必过）
He told me that he would take an important exam next week.
他告诉我他下周将参加一场重要的考试。
I wondered when we would leave for Beijing.
我想要知道我们什么时候动身去北京。
1. I wasn’t sure whether he (lend) me his book the next morning.
2.This morning, Alice was about (go) out when the door opened and in came some strangers.
3.We decided that we (fly) to Canada the next morning.
4.He was sixteen. In two years, he (be) eighteen.
would lend
to go
would fly
would be
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