Unit 4 The Internet Connects Us Lesson 23 The Internet--Good or Bad?课件 (共11张PPT)

(共11张PPT)
Lesson23:
The Internet –Good or Bad
Step Ⅰ:Review 复习
Fill in the blank.填空：
1.What is the dream of Jane’s grandma
She has a dream of (travel)aroud the world.
2.How did Jane help her grandma to come true her dream
Jane went on line to tell people her grandma’s story .She posted pictures of her grandma on a blog.She asked people （是否） they could help her grandma see the world （通过）pictures.After a few （day）,many people began to follow Jane’s blog.They began posting pictures of Grandma visiting places （全世界）.
Traveling（travelling）
if
through
days
all over the world
Step Ⅱ.Leading in 导入：
1.Why are some parents worried about their kids using the internet
2.Does the internet make life simpler How
3.The internet is good or bad
StepⅢ:Presentation 呈现：
1.New words:
advantage\ dvα:ntidз\n.优势；有利条件；有利因素
disadvantage\ d s dv α :ntidз \n.缺点；不利因素
simple\’s mpl\adj.简单的；简明的
coin\k n\n.硬币
cause\k :z\v.造成；引起
less\les\adj&adv.更少的；更小的（little的比较级）
aside\ said\ adv.除…之外；在旁边
attack\ ’t k\v.袭击；损害
web\web\网络，网
steal\sti:l\v.(stole\stolen) 偷盗；窃取
banking\b nk η\银行业
properly \prDp l \adv正确地
2.Structures and expressions词组：
in seconds 在很短时间内
E.g：People are able to connect and share information in seconds.
far away 遥远
E.g:If a friend lives far away,the internet makes it easy to stay in touch.
every coin has two sides每个硬币都有两面、每件事都有两面性.
(伴灿罢︽阐稗︽锤︽搬︽搬昌︽碘罢邦︽罢财罢︽办︽扳超爸︽碘罢邦︽罢册邦︽﹀)
aside from 除此之外
E.g：Aside from that,some people attack the web or use the internet to steal others’personal information.
take up 占用，占据；开始从事；接受(提议)
E.g:Don’t let it take up all your time.
3.Text 正文：
The 1st passage:
The internet has changed the world.People are able to connect and share information in seconds.However,the internet has advantages and disadvantages.
The 2nd passage:
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 opened up the world to us.And if a friend lives far away,the internet makes it easy to stay in touch.
The 3rd passage:
But every coin has two sides.Some of the disadvantages can become real problem if we don’t take care.spending too much time on line 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’s personal information,even banking information.
The 4th passage:
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.
StepⅣ:Discussion 讨论：
Advantages of the internet:
1. In many ways it makes life easier and simpler.
2.It helps us get things done more quickly.
3.It opened up the world to us.
4. If a friend lives far away,the internet makes it easy to stay in touch.
Disadvantages of the internet:
1.Spending too much time on line is harmful to people’s health.
2.It may even cause them to be less social with family and friends.
3.Some people attack the web or use the internet to steal others’s personal information,even banking information.
StepⅤ:Summary 小结：
1.We have learnt some new words and phrases in this lesson.You must consolidate(巩固) them after school.
2.We have learnt how to talk about the advantages and disadvantages of the internet in English in this lesson.you must try to repeat（重复） it after school.
3.We know an idea that everything has two sides as if the coin.
StepⅥ:Setting homework 作业：
The following are the things you can do on the internet .Tick the ones that you think are OK for junior high students（初中生）.
1.[ ]E-mail with friends and family.
2.[ ]Chat on line with friends.
3.[ ]Download（下载）documents from strangers(陌生人).
4.[ ]Write blogs.
5.[ ]E-mail with strangers（陌生人）.
6.[ ]Open attachments （附件）from strangers.
7.[ ]Send ,receive or post photos with friends.
8.[ ]play online game for a whole day.
9.[ ]Download programs（程序）.
10.[ ]Stay on line after 10:00p.m.
StepⅦ:Dismissing the class 下课：
Thank you for
your cooperation !