冀教版八年级下Unit 4 The Internet Connects Us Lesson 23 The Internet--Good or Bad?课件（21张ppt）

(共21张PPT)
Lesson 23 The Internet—Good or Bad？
课文讲解
Unit 4 The Internet Connects Us
The Internet makes life simpler.
She lives in Africa.
With the Internet, I could meet her.
The Internet can even take me to the South Pole!
a picture of the South Pole
The Internet has changed the world. People are able to connect and share information in seconds. However，the Internet has advantages and disadvantages.
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 .
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 .
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.
原文呈现
The Internet has changed the world. People are able to connect and share information in seconds. However，the Internet has advantages and disadvantages.
change the world 改变世界
in seconds 短时间内；几秒钟之内
e.g.
You press a button and it comes on in seconds.
你只要触摸按键，它就会在几秒内启动。
The Internet has changed the world. People are able to connect and share information in seconds. However，the Internet has advantages and disadvantages.
be able to do sth. 能, 能够，
主要指具体做某件事的能力，有人称和时态的变化。
情态动词can也表示“能,会”，只有现在时can和过去时could两种时态，没有人称变化。
Can you come tomorrow 明天你能来吗？
Will you be able to come tomorrow 明天你能来吗？
He said that we could go there by bus.
他说我们可以乘公共汽车去那里。
I’m able to do the work all by myself.
我能够独立做这项工作。
take advantage of...利用……
e.g.
Living in a big city has many advantages.
住在大城市里有很多有利条件。
The Internet has changed the world. People are able to connect and share information in seconds. However，the Internet has advantages and disadvantages.
advantage / d'vɑ nt d / n.优势；有利条件；有利因素
disadvantage n. 不利条件
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.
get sth. done 使某事被做
get 表示“使；让”, 过去分词done 在此作宾语补足语。
e.g. Would you please help me get the door locked
请问你能帮我把门锁了吗？
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.
far away 遥远的；在远处
far away 意为“遥远”, 表示距离, 在句中作状语或表语, 有时away 可以省略。
e.g. My grandparents live far away.
我爷爷奶奶住得很远。
拓展
如果表示“离……很远”, 则用“far away from...”
e.g. He lives far away from the school.
他住得离学校很远。
如果away 前有具体的数字修饰时, 则不用far。
e.g. My home is 5 miles away from the school.
我家离学校有五英里远。
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.
stay in touch 保持联系
e.g.
Please stay/keep in close touch with me.
请与我保持密切联系。
=keep in touch
拓展
get in touch with… 和……取得联系
lose touch 失去联系
out of touch 失去联系
touch n. 联系
touch v. 触摸
e.g. Don’t touch your eyes.
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.
make+ it+ adj. (+for sb.) +to do 使做某事变得……
e.g.
The teacher tried to make it interesting for the students to learn math.
老师尽力使数学学起来有趣。
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.
但是任何事物都有两面。
be harmful to 对……有害处
Smoking can be harmful to your health.
吸烟会对你的身体有害。
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.
cause v.造成，使(发生)
Smoking can cause lung cancer.
cause sb . sth. ＝cause sth . to/for sb .
给某人带来某事
cause n.原因；起因；理由；动机
What was the cause of the accident
造成这一事故的原因是什么？
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.
aside from 除…以外
Aside from headache, he showed no signs of lasting brain damage.
除了头痛，没有任何迹象表明他曾受过脑损伤。
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.
take up 占用（时间）占据（空间）
e.g. The table takes up too much room.
这张桌子太占地方。
I won’t take up any more of your time.
我不再占用你的时间了。
Unit 4-Lesson 23课后作业（微课配套）
Bye-bye