北师大版（2019）必修 第二册Unit 4 Information technology Topic Talk 课件(共19张PPT)

(共19张PPT)
Unit 4
Topic Talk
新 课 导 入
Let’s talk
Do you know what information technology is
(abbr. IT) the theory and practice of using computers or electronic equipment to store and analyse information
课 堂 学 习
Pair Work
In what way do you use it
Why do you use it
How has it changed people’s daily lives
…
Example: I often search for information for my project on the Internet.
Information Technology
Use the questions to talk about information technology.
Read the Text Builder carefully. Then listen to the dialogue and complete it by underlining the words or expressions you hear.
2
4.1
Text Builder
Information Technology
I love exploring new technologies, because they __________________.
I use apps to __________ online.
I also like chatting online. It ________________________. Well, too much chatting online __________________.
are so convenient
buy things
makes me feel less lonely
takes a lot of time
Use the Text Builder to talk about information technology.
3
Information Technology
Uses
Reasons
Effects/
Impacts
are so convenient, make life easier, enable better communication, provide convenience/education/information
chat, communicate, buy things, find information, learn about new things
makes communication convenient/me feel less lonely,
helps me develop new friendships,
enables people to communicate better
makes us self-focused/live in an unreal world/addicted to it, takes a lot of time,
does not encourage face-to-face communication
Look and Learn
A mobile application, most commonly referred to as an app, is a type of application software designed to run on a mobile device, such as a
smartphone or tablet computer.
Listen to the plete the notes in the table.
4
4.2
Apps Reasons for use
Music app I listen to songs when _______________________.
It really helps me ________.
Apps for the news ___________ with the news all day long.
_________ I use different avatars… because they let me explore ____________________.
__________ A bell rings to remind me that ____________.
I can’t sleep or feel nervous
relax
Get updated
Games
different personalities
Alarm clock
my time is up
Use the language you have learnt to write a short paragraph about the apps you find useful and the problems you should be aware of. Then share it in groups.
5
You can follow the clues below.
Apps: Apps for different games.
Benefits: … because new games make my life interesting.
Problems: But I am afraid I may get addicted.
Solutions: So I downloaded an app called “Alarm Clock”.
Quote & Unquote
The First Industrial Revolution used water and steam power to mechanise production (机械化). The Second used electric power to create mass production(规模化). The Third used electronics and information technology to automate production(自动化).
—Klaus Martin Schwab
Technology is anything that wasn’t around when you were born.
— Alan Kay
We are all now connected by the Internet, like neurons in a giant brain.
— Stephen Hawking
The Internet is becoming the town square for the global village of tomorrow.
—Bill Gates
convenience n.方便，便利；便利的事物　
convenient adj.方便的；便利的　
inconvenience n.不方便；不便　
inconvenient adj.不方便的
Key points
[归纳拓展]
at one’s convenience　在某人方便的时候
for one’s convenience (of)＝for the convenience of sb. 为了某人的方便
It is convenient for sb to do sth. 某人方便做某事
[即学即练] 单句语法填空
1. These gates are always open ______ the convenience of visitors.
2. Any help from you will be greatly appreciated.Please give me a
reply ______ your convenience.
3. Will it be convenient _____ you to start work tomorrow
for
at
for
effect n. 效应；影响；结果 　
effective adj. 有效的
[归纳拓展]
come into effect　 生效，开始实施
take effect 生效，开始起作用
in effect 实际上，事实上
have a/an... effect on/upon... 对……有……影响
[即学即练] 单句语法填空
1. One of the most __________ (effect) ways to reduce stress is to
talk about your feelings with someone you trust.
2. Her words had a magical effect __________ us.
effective
on/upon
addicted adj. 对……着迷的；沉迷的　
addiction n. 癖好　
addict vt. 使沉溺；使上瘾 n. 有瘾的人
[归纳拓展]
be/become/get addicted to sth./doing sth. 沉溺于……
addict oneself to sth. 沉溺于……
[即学即练] 完成句子
很多孩子沉迷于上网，因此他们对学习失去了兴趣。
Many kids ______________________ surfing the Net, and so they have lost interest in study.
＝Many kids __________________ surfing the Net, and so they have lost interest in study.
＝___________ surfing the Net, many kids have lost interest in study.
are/become/get addicted to
addict themselves to
Addicted to
admit vt.& vi. 承认；容许；接纳；容纳　
admission n．承认；许可
[归纳拓展]
admit doing/having done/that ... 承认……
be admitted to/into 被接纳进入
admit... as... 接纳……作为……
[即学即练] 单句语法填空
1. Little Jack admitted ____________ (steal) in the shop, promising that
he wouldn’t do that in future.
2. He studies very hard in order to get himself admitted ________ a key
university.
having stolen
into/to
Can you list some more benefits that information technology has brought us now