(共35张PPT)
Unit 4 The Internet Connects Us
Lesson 23 The Internet – Good or Bad
1. To master the new words and phrases
advantage, disadvantage, simple, coin, cause, less, aside, attack, web, steal, banking, properly, be able to…, in seconds, get… done, stay in touch, too much, be harmful to…
2. To learn about the advantages and disadvantages of the Internet.
Learning objectives
Warm up
How much time do you spend online every day
New words and expressions.
advantage
disadvantage
simple
coin
cause
less
n. 优势；有利条件；有利因素
n. 缺点；不利因素
n. 硬币
adj. 简单的；简明的
v. 造成；引起
adj. & adv. 更少的（地）；更小的（地）
n. 较少量；较小的部分
New words and expressions.
aside
attack
web
steal
banking
properly
adv. 除……之外；在旁边
v. 袭击；损害
v. 偷盗；窃取
n. 网络；网
n. 银行业
adv. 正确地
Fill in the blanks.
1. It is your __________(优势) to speak English well when you are looking for a job.
2. The funny story is written in __________(简单的) English.
3. As we all know, every __________(硬币) has two sides.
4. I spend __________(更少的) time writing on my computer.
5. Tree roots can __________(造成) damage to buildings.
advantage
simple
coin
less
cause
Think about it.
· Why are some parents worried about their kids using the Internet
· Does the Internet make life simpler How
Read the lesson and fill in the table.
1
Good things about the Internet Bad things about the Internet
It makes life easier and simpler.
It helps us get things done more quickly.
It opens up the world to us.
It makes it easy to stay in touch if a friend lives far away.
Spending too much time online is harmful to people’s health.
It may even cause people to be less social with family and friends.
Some people attack the web or use the Internet to steal others’ personal information, even banking information.
People are able to connect and share information in seconds.
能够……
在短时间内
Language Points
【探究】
be able to… 意为“能……；能够……”，强调通过努力而获得某种能力，能用于多种时态。
eg: The boy was able to speak at age.
下个月我就会游泳了。
I will ________ ________ ________ swim next month.
be able to
【探究】
in seconds意为“在很短的时间内”，second此处用作名词，意为“片刻”。
eg: You will receive my e-mail in seconds.
你在很短的时间内就可以收到我的信息。
You can receive my message ________ ________.
in seconds
However, the Internet has advantages and disadvantages.
然而，互联网有优点也有缺点。
【扩展】
take advantage of… 利用……
eg: Take advantage of the extra time you have.
If you’re too trusting, other people will take advantage of you.
I’m going to _____ advantage of this tour to explore the history of the castle.( )
A. put B. make
C. take D. give
C
It help us get things done more quickly.
它帮助我们更快地把事情做好。
【辨析】
get sth. done 使某事被做
get sb. to do sth. 让某人做某事
eg: Would you please help me get the door locked
I got him to do his homework before dinner.
Grandpa wants to get his radio _____.( )
A. repair B. repaired
C. repairing D. to repair
B
And if a friend lives far away, the Internet makes it easy to stay in touch.
保持联系
【探究】
stay/keep in touch (with…)（和……）保持联系
eg: I still stay in touch with my old friends.
There are many ways for us to keep in touch.
【拓展】
get in touch with… 和……取得联系
lose touch with…和……失去联系
out of touch 失去联系
eg: I tried to get in touch with you yesterday evening, but I think you were out.
I don’t want to lose touch with you.
I'm sorry we’ve been out of touch.
毕业后别忘了和你的老师和同学保持联系。
Don’t forget to ________ ________ ________ ________ your teachers and classmates after you graduate.
keep/stay in touch with
It may even cause them to be less social with family and friends.
导致
更少地
【探究】
cause作动词，意为“造成；引起”，后接名词或代词作宾语，常用结构为cause sth.，意为“造成/引起某事”；也可接双宾语，即 cause sb. sth. = cause sth. for sb.，意为“给某人造成某事”。
eg: Pouring dirty water into the lake will cause pollution.
His absence caused me much trouble.
我怕给他们带来麻烦。
I’m afraid of ________ them trouble.
causing
【探究】
less作形容词时，是little的比较级，修饰不可数名词。
less作副词时，可用于修饰动词。其反义词为more。
eg: He was advised to smoke fewer cigarettes and drink less beer.
We are eating more and exercising less.
-Can you give me some advice on how to be slimmer
-Eat _____ meat and _____ cakes.( )
A. less; less B. fewer; fewer
C. less; fewer D. fewer; less
C
Spending too much time online is harmful to people’s health.
太多
对……有害
【探究】
too much意为“太多”，修饰不可数名词或行为动词，表示程度。
eg: Eating too much sugar can lead to health problems.
I don’t want to depend too much on my parents.
Some teenagers spend _____ time online.( )
A. much too B. too much
C. too many D. so many
B
【探究】
be harmful to…意为“对……有害”，相当于do harm to...
eg: Watching TV too much is harmful to your eyes.
Cigarette smoke is also harmful to people’s health.
A little wine will not be _____ to your health. Just don’t drink too much.( )
A. helpful B. helpless
C. harmful D. harmless
C
【探究】
“Spending too much time online”是动名词短语作主语，谓语动词用单数形式。
eg: Watching films is my favorite pastime.
_____ honest is the first thing that people should learn.( )
A. Being B. Look
C. Be D. Become
A
Listen to the dialogue and tick the correct answers.
2
1. What are Li Ming and Wang Mei talking about
Their school project. Their homework.
2. Why does Wang Mei think the Internet is good
She can chat with her friends easily.
She can watch TV programs.
3. Li Ming thinks they should use the Internet _____．
carefully and freely properly and carefully
The following are the things you can do on the Internet. Tick the ones that you think are OK for junior high students and give your reasons.
3
□E mail with friends and family.
□Chat online with friends.
□Download documents from strangers.
□Write blogs.
□E mail with strangers.
□Open attachments from strangers.
□Send, receive or post photos with friends.
□Play online games for a whole day.
□Download programs.
□Stay online after 10:00 p.m.
Fill in the blanks with appropriate prepositions or adverbs.
1. The Internet lets us send and receive messages around the world ________ seconds.
2. I won’t take ________ much of your time.
3. The new music teacher lives far ________.
4. Does he speak any language aside ________ French
5. I open ________ the store at around 8:30 every morning.
in
up
away
from
up
Summary
advantage, disadvantage, simple, coin, cause, less, aside, attack, web, steal, banking, properly, be able to…, in seconds, get… done, stay in touch, too much, be harmful to…
GOOD JOB
