Unit 4 Lesson 23 The Internet — Good or Bad 课件+嵌入视频(共22张PPT)

(共22张PPT)
Unit 4 The Internet Connects Us
Lesson 23 The Internet — Good or Bad
新
课
导
入
Language Goal
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1.能熟悉并能正确运用本课时的重点单词和短语
2.能够正确地看待互联网的利与弊
3.能够正确看待并合理利用互联网学习
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
Where do you want to go？With the Internet，you could meet this student . She lives in Africa .
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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 .
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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 .
How far do you want to go？The Internet can even take you to the South Pole！
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Read the lesson and fill in the table .
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.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
2) Listen to the dialogue and tick the correct answers.
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
√
√
√
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3) 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 .
□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.
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
1. cause/k z/ v.使发生；引起；造成
eg：His absence caused me much trouble .
他的缺席给我带来了许多麻烦。
cause sb . sth . ＝cause sth . to/for sb .
给某人带来某事
eg：I hope that it won’t cause you much trouble .
我希望它不会给你带来很多麻烦。
考向一
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
cause n.原因；起因；理由；动机
eg：What was the cause of the accident
造成这一事故的原因是什么？
考向二
辨析 cause与reason
考向三
cause 起因；指引起某种后果的起因。常与of连用，即“the cause of . . . ”。 The cause of the accident was that he drove too fast .
事故的起因是他开车太快。
reason 理由，原因；指决定做某一件事或采取某一行动的理由，由此而得出结论或解释。 常与for连用，即“the reason for ... ”。 The reason for my absence was that I was ill .
我没来是因为我生病了。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
2. less/les/adj.& adv . (little的比较级)
更少的(地)；更小的(地) n.较少量
eg： The film was less funny than the book .
这部电影不如书好笑。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
less 更少(小)的 作形容词讲时，常用来修饰不可数名词。是little的比较级。 We have less coffee than you have.
我们的咖啡比你们的少。
fewer 更少的 作形容词讲时，常用来修饰可数名词复数。是few的比较级。 They have fewer eggs than you have.
他们的鸡蛋比你们的少。
　 一语辨异：
We should do more work with fewer people and less money .
我们应该用更少的人和更少的钱做更多的工作。
魔法记忆
考向
辨析 less与fewer
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
3. aside from除……之外
eg： Aside from Tom, I don’t know anybody in this village .
除了汤姆之外，这村子里我谁也不认识。
辨析: aside from, besides与except
考向【难点】
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
aside from 作“除……之外(还)”讲时，相当于besides；作“除了……外(都)”讲时，相当于except。 Aside from John，we all went there .
除了约翰(去了)之外，我们都去那儿了。(包含约翰)
Aside from John，we all went there . 除了约翰(没去)外，我们都去那儿了。(不包含约翰)
besides besides 意为“除了……之外(还)”，表示的是追加关系，整体中包括了“除了”的部分。 Besides his wife, his daughter also went to see him .
除他妻子外，他女儿也去看他了。
except except 意为“除了……(都)”，表示的是剔除关系，整体中不包括“除了”的部分。 I seldom go to work by bus except when it rains .
除了下雨的时候，我很少乘公共汽车去上班。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
4. 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 do sth. 意为“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？
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
He said that we could go there by bus.
他说我们可以乘公共汽车去那里。
Will you be able to come tomorrow
明天你能来吗？
I’m able to do the work all by myself.
我能够独立做这项工作。
in seconds 短时间内；几秒钟之内
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。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
5. It helps us get things done more quickly.
它能使我们把事情做得更快。
get sth. done “完成，做完某事”，通常由自己完成。此get/have sth. done还有“让某人做某事”的意思。
I got my homework finished.
我做完了作业。
I am going to get/have my hair cut.
我要去剪发。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
重点研讨
课堂小结
当堂检测
学习目标
新知学习
6. And if a friend lives far away, the Internet makes it easy to stay in touch.
如果朋友住得很远，互联网使相互联系变得容易。
“make+ it+ adj. (+for sb.) +to do”
意为“使做某事变得……”。
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。
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
课堂小结
重点研讨
当堂检测
学习目标
新知学习
cause，vt &n
cause sb sth
cause sth to/ for sb
除......之外还有
except
besides
aside from
更少或更小
less or fewer
Unit 4
Lesson 23
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
1. Every year driving after drinking wine ________
a lot of traffic accidents .(造成，引起)
2. Everyone else in my class was invited
________ ________(除了) me, and I don’t know why .
3. 我怕给他们带来麻烦。
I'm afraid of ________ them trouble.
aside from
causing
causes
根据所给汉语意思填空
新知学习
旧知回顾
课堂小结
当堂检测
学习目标
拓展提升
当堂检测
重点研讨
课堂小结
学习目标
新知学习
4. 污染比以前少了。
There's ________ ________ than before.
5. 他们三个人当中，谁的钱最少呢？
Who has ________ ________ ________ of them three
6.我的书比你的少。
I have ________ ________ than you.
less pollution
the least money
fewer books