北师大版（2019）必修第二册Unit 4 Information technology Lesson 1 Avatars课件（28张PPT）

(共28张PPT)
Lesson 1 Avatars
Unit 4
--GXY
Acquire English Wisely； Apply English widely.
Warm-up
Before-reading
Prediction
What would you like to learn from an article about avatars Write your questions in the diagram below.
Meanings
History
Effect
While-reading
While-reading: Skimming
Read and check your prediction and match the titles with the paragraphs.
History
Definition
Using widely
Views
Different occasions,
different choices
Linking of Avatars and personalities
Purposes
of using avatars
Avatars Details
Definition A digital image that represents an Internet user.
History 1980s
Late 1990s
Purpose of using\ avatars To express oneself
To represent oneself
Views Negative
Positive
The first simple 2D avatars appeared in role-playing computer games
used in web chats like instant messager
Let you express yourself and they give you lots of room for creativity
They experiment with things like different hairstyles--which says a lot,perhaps, about what they want to look like
becoming afarid of meeting people in the real world.
Others view avatars in a more positive light.
While-reading: Scanning
While-reading:
Q: 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).
While-reading:
Q: What is the purpose of the passage
To introduce the definition of avatars.
To express yourself using pictures.
To introduce the history of avatars.
To introduce some information about avatars.
While-reading: Careful-reading
F
While-reading: Careful-reading
While-reading: Careful-reading
1. Do you agree with the writer that “the avatar you choose says a lot about your personality” Give examples to support your opinion.
2. Are there any risks of using avatars Any examples
3. How should we use avatars in a safer and healthier way on the Internet Any suggestions
After-reading: Deep thinking
Grammar
The simple future tense
will / shall do
be going to do
be about to do
be doing
be to do
Grammar: Review
FORM USAGE
will/shall do
be going to do
be about to do
be doing
be to do
表示主语计划打算的行动或看来就要发生的事情
表示将来发生的动作或出现的状态, shall仅与第一人称连用
表示即将发生的动作，一般不带时间副词或短语
表示计划或安排好的动作(go, come, leave, begin等动词)
表示客观上计划或安排好的动作
The Usage of the Simple Future Tense
Grammar: Review
c He says that he won’t finish his work this afternoon.
d We are going to visit the Great Wall tomorrow.
a He said that he wouldn’t finish his work that afternoon.
b Last Sunday we were going to visit the Great Wall, but it rained.
Compare the following sentences and answer the questions.
What is the difference between the two groups of sentences
What clues in the sentences help you decide which tense to use
Match each group of sentences to the correct timeline.
Past future tense
Group 1
Group 2
Something would happen in the future from a past point of view.
A
B
Present future tense
Something will happen in the future from a present point of view.
Past future
过去将来时
1. 概念
2. 结构及用法
3.形态
一般过去将来时、过去将来进行时和过去将来完成时。
Grammar:
The Past Future Tense
( 过去将来时)
01
过去将来时表示从过去某一时间来看，将要发生的动作或存在的状态。
02
过去将来时常用在主句谓语动词为过去时态的宾语从句/间接引语/虚拟语气中。
03
过去将来时句子中有时包含时间状语 the next day，the following week，soon等。
Grammar:
shall/will do
be going to do
be to do
be about to do
be doing
Past future tense 过去将来时
would/should do
was/were going to do
was/were to do
was/were about to do
was/were doing
Grammar:
1. would/should + 动词原形，常表示根据计划或安排即将发生的事。
should主要用于主语是第一人称时；would可用于各种人称。
(1) He said he would go to the cinema tonight.
(2) Mary told me she would go abroad next year.
(3) I said I should learn French this year.
结构及用法
Grammar:
2. was/were going to + 动词原形，也可表示根据计划或安排即将发生的事。
No one knew when he was going to come.
(2)She said she was going to start off at once.
(3) I was told that he was going to return home.
Grammar:
3. was/were to + 动词原形，按照约定或按职责义务要求必须做某事。
He said he was to arrange his holiday with his older brother in a week.
4. was/were about to + 动词原形,
表示即将要发生的动作, 不与表示时间段的状语连用。
(1) The bus was about to start.
(2) Colin was about to get off the camel when a child ran towards him.
Grammar:
5. was/ were on the point of doing：表示 “正要……时”。
He was on the point of saying something when the phone rang.
6. come, go, leave, arrive等动词可用过去进行时代替过去将来时。
7. 条件状语从句和时间状语从句中的动词须用一般过去时代替过去将来时。
(1) He said the train was leaving at six the next morning.
(2) She told me she was coming to see me.
(1) I didn't know when she would come, but when she came I would let you know.
(2) The teacher said that it would be very difficult to make progress if I didn’t work hard.
Grammar:
用所给动词的适当形式填空。
1. Miss Zhang said she ____________ (visit) the Great Wall next summer.　
2. She told him that she ________________ (not stay) here for long.
3. I wasn’t sure whether Lucy_____________ (come) the next year.
4. The scientists said the world’s population ____________ (grow) slowly in future.
would visit
wouldn’t stay
would come
would grow
Grammar:Exercises
When twelve-year-old John Wilson walked into his chemistry class on a rainy day in 1931, he had no way of knowing that his life ____________ (change) completely. (2020江苏)
After running hundreds of tests, the researchers noted that the monkeys _________ (go) for the higher values more than half the time… (2019全国卷III)
直击高考
was to change
would go
Grammar:Exercises
Homework
背诵并默写：Words of Lesson 1；
完成检测卷132-134页阅读；
结合《学习指导》11-15页预习第一课；
整理笔记。
Thank you for listening!