Lesson 23 The Internet—Good or Bad？课件（17张PPT）

(共17张PPT)
Unit 4 The Internet Connects Us
Lesson 23 The Internet—Good or Bad
Every coin has two sides.
coin n.硬币
Everything has two sides(advantage or disadvantages), so is the Internet.
disadvantage n. 缺点
advantage n.优势
遥远
If a friend lives far away, we can connect in seconds.
在很短时间内
The hacker(黑客) may attack your computer and steal your information.
attack v.袭击，损害
steal v.偷盗，窃取
words
advantage
disadvantage
simple
coin
cause
less
n. 优势；有利条件
n. 缺点；不利因素
adj. 简单的；简明的
n. 硬币
v. 造成；引起
adj. &adv.更少/小的(地)
n.较少量；较小的部分
aside
attack
web
steal
banking
properly
adv. 除…之外；在旁边
v. 袭击；损害
n. 网络；网
v.偷盗；窃取
n. 银行业
adv. 正确地
advantages
simply adv.简单地
little-less-least
steal-stole-stolen
bank n.银行
proper adj.正确的
PHRASEs
in seconds
far away
Every coin has two sides.
aside from
take up
在很短的时间内
遥远
每个硬币都有两面
（每件事物都有两面性）
除此之外
占用，占据；开始从事；接受（提议）
Think About it
Why are some parents worried about their kids using the Internet
Does the Internet make life simpler How
The Internet has changed the world. People are able to connect and share information in seconds. However，the Internet has advantages and disadvantages.
Read this passage quickly and answer the question.
1. What is the topic sentence of this passages
现在完成时
能，能够
在很短时间内
Some of the advantages are truly wonderful. In many ways it makes life easier and simpler. It helps us get things done more quickly. It opens up the world to us. And if a friend lives far away, the Internet makes it easy to stay in touch.
Read paragraph 2 answer the questions.
The internet ______________the world to us.
How does the internet help you if your friend lives far from
In many ways it makes life easier and simpler.(翻译)
has changed
The internet makes it easy to stay in touch.
因特网在许多方面使生活更容易，更简单。
遥远的
保持联系
But every coin has two sides. Some of the disadvantages can become real problems if we don’t take care. Spending too much time online is harmful to people’s health. It may even cause them to be less social with family and friends. Aside from that，some people attack the web or use the Internet to steal others’ personal information，even banking information.
Read paragraph 3 answer the questions.
Spending too much time online ______________ people’s healthy.
It may even cause them to be__________ with family and friends.
Some people attack the web or use the internet to ________________________________, even banking information.
is harmful to
less social
steal others ’ personal information
对……有害
little-less-least
The Internet can be a useful tool，but don’t let it take up all of your time. Use the Internet properly and carefully and it can make your life more colourful.
Read paragraph 4 answer the question.
Paragraph 4 mainly tells us about ______.
the advantages of the Internet
the disadvantages of the Internet
the importance of the Internet
the advice for using the Internet
√
1. What is the topic sentence of this passages
However，the Internet has advantages and disadvantages.
Language points
People are able to connect and share information in seconds. 几秒钟之内，人们就能够相互联系并分享信息。
be able to 能，能够（主要指具体做某事的能力， 有人称和时态的变化）
can 情态动词；能，会（只有现在时can和过去式 could两种时态，没有人称变化）
e.g. 他能够独立做这项工作。
He is able to do this work by himself.
e.g. 明天你能来吗？
Can you come tomorrow
Scientists believe that robots ____ able to talk like humans in 50 years.
A. were B. are C. will be D. have been
√
2. It helps us get things done more quickly.
它帮助我们更快的完成事情。
get sth. done 完成/做完某事
e.g. 我刚刚完成了我的作业。
I got my homework finished just now.
e.g. 我刚刚完成了我的作业。
I am going to get my hair cut tomorrow.
My car didn’t work, so I got it ________(repair).
repaired
3. And if a friend lives far away, the Internet makes it easy to stay in touch.
如果朋友住的远，互联网使相互联系变得容易。
make it + adj. + (for sb.) + to do sth. 使做某事变得……
其中it是形式宾语，to do 不定式是真正的宾语。
e.g.老师尽力使学生学习数学变得有趣。
The teacher tried to make it interesting for the students
to learn math.
练习：the high-speed railway makes ____ easier to travel.
A. this B. that C. it D. one
√
4. The Internet can be a useful tool，but don’t let it take up all of your time.
互联网能够是一种有用的工具，但不要让它占据你所有的时间。
take-took-taken
e.g. 这张桌子占据太多空间。
The table takes up too much room.
take up 占据（时间/空间）
take up doing sth. 开始从事……
e.g. 我五岁的时候开始弹钢琴。
I took up playing the piano at age 5.