(共41张PPT及音频)
Unit4 The Internet Connects Us
同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
词汇听写
课文导入
Now more and more people use the Internet.
What do you think of it
Do you like it
课文呈现
THINK ABOUT IT
Why are some parents worried about their kids using the Internet
Does the Internet make life simpler？How
Are you using the Internet every day
Do you think it’s good or bad
体裁：议论文
课文呈现
文章结构：
总 — 分 — 总
↓ ↓ ↓
第1段总结概括，并提出论点。
第2、3段围绕中心论点分述网络的优缺点。
第4段作出总结：正确使用网络。
课文呈现
The Internet has changed the world. People are able to connect and share information in seconds. ① However，the Internet has advantages and disadvantages. ②
Where do you want to go？With the Internet，you could meet this student . She lives in Africa .
温馨提示：此符号表示“考点精讲点拨”链接。
词语赏析：( 画“ ”处)in seconds 词组恰如其分地表述了网络速度之快，同时也体现了网络的特点。
课文呈现
Some of the advantages are truly wonderful . In many ways it makes life easier and simpler . It helps us get things done more quickly . ③ It opens up the world to us . And if a friend lives far away, the Internet makes it easy to stay in touch . ④
课文呈现
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 . ⑤ It may even cause them to be less social with family and friends . ⑥ Aside from that，some people attack the web or use the Internet to steal others’ personal information， ⑦ even banking information .
句子：( 画“ ”处)用谚语作为段落的开头，能起到承上启下的作用，同时谚语也具有很强的说服力且语言精炼得体。
词语赏析：( 画“ ”处)even一词两次在同一段落中出现，起强调作用，表递进关系，突出强调了不正确使用网络的坏处。
课文呈现
The Internet can be a useful tool，but don’t let it take up all of your time . ⑧ 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！
课文呈现
互联网给我们生活带来了变化。任何事物都有两面性，本文说明了互联网好的方面和不好的方面，告诉我们要善于使用网络，让网络成为为我们服务的仆人，而不是主宰我们的主人。
Over the past 20 years, the Internet has greatly influenced our world and __________ 1(change) our lives. The Internet makes it much __________ 2(easy)for people to search for information. __________ 3 example, when we write a history report, we don’t have to go to the library.
changed
easier
For
课文呈现
We can find _____________4(information) about world leaders and historical events on different __________5(website). Everything we want to know can be found at the click of a button. The Internet helps us to stay __________6(connect)to family, friends and the world around us. Not long ago, we wrote letters and waited weeks for a reply.
information
websites
connected
课文呈现
Today, when we use QQ, we send and receive __________7 (message)across thousands of miles in a few seconds. Although the Internet has made our world better in many ways, in some ways, it can be a bad influence. There is a lot of false information on the Internet. It is important not to believe __________8 we read on the Internet.
messages
everything
课文呈现
Some teenagers spend too much time in __________9 (play) Internet games. They may lose focus on their studies. There are millions __________10 interesting sites to visit and so many wonderful things to do online. How could we live without the Internet nowadays But try to let the Internet be your good servant, not your bad master!
playing
of
课文呈现
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.
课文呈现
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
√
√
√
听力材料
Li Ming: Our school project is “The Internet — good or bad ” What do you think, Wang Mei
Wang Mei: I think it’s good because I can chat with my friends easily. I can share information and even use it to learn English. What about you
Li Ming: I don’t think it’s good for our health if we spend too much time online. Some students like to play games and don’t study hard. We should use the Internet properly and carefully.
课文呈现
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.
考点精讲
① People are able to connect and share information in seconds.
be able to 能够
e.g. Work hard, and you will be able to go to a good university.
努力学习，你就能上个好大学。
考点1
be able to+ 动词原形，表示“有能力做某事”。
考点精讲
be able to (1)强调通过努力而获得的能力；
(2)有人称、时态和数的变化；
(3) 可用于多种时态。
can (1)强调自身已具备的能力；
(2)无人称和数的变化，且只有一般现在时(can )和一般过去时( could ) 两种时态；
(3)can还可以表示请求和允许，而 be able to 无此用法。
辨析：be able to 与can
考点精讲
e.g. They are able to win the competition.
他们能够赢得比赛。
He will be able to sing the song in English in a few minutes, too.
几分钟后，他将也能用英语唱这首歌。
We can speak English. 我们会说英语。
Tom could swim when he was 10 years old.
汤姆10岁时就会游泳了。
考点精讲
中考在线1：我会拼写这个单词。 [绥化]
_____________________________________________
I can spell the word./I am able to spell the word.
考点精讲
in seconds 在很短的时间内
e.g. Wait here, and I will be back in seconds.
在这儿等着，我很快就会回来。
拓展：second 作名词，还有“秒”的意思；作序数词时意为“第二”。
e.g. 60 seconds make 1 minute.60 秒等于1 分钟。
The Yellow River is the second longest river in China.
黄河是中国的第二长河。
考点2
片刻，瞬间
返回
温馨提示:可返回原文
考点精讲
② However, the Internet has advantages and disadvantages.
advantage / d'vɑ nt d / n.(a thing that helps you to be better or more successful than other people) 优势；有利条件；有利因素
e.g. Living in a big city has many advantages.
住在大城市里有很多有利条件。
We should take advantage of every chance.
我们应该利用每一次机会。
考点3
反义词为disadvantage
n. 不利条件
take advantage of...利用……
考点精讲
中考在线2：In 1964, Yuan Longping found a natural hybrid rice plant that had many a over others. [苏州]
dvantages
返回
考点精讲
③ It helps us get things done more quickly.
get sth. done 使某事被做
e.g. Would you please help me get the door locked
请问你能帮我把门锁了吗？
My watch didn’t work, so I got it repaired.
我的手表坏了, 所以我修理了它。
We got Mother to prepare our lunch.
我们让母亲做我们的午餐。
考点4
get表示“使；让”, 过去分词done在此作宾语补足语。
get sb. to do sth.意为“让某人做某事”。
返回
考点精讲
④And if a friend lives far away, the Internet makes it easy to stay in touch.
far away 遥远
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。
考点5
考点精讲
He lives far away from the school.
他住得离学校很远。
My home is 5 miles away from the school.
我家离学校有五英里远。
如果表示“离……很远”, 则用“far away from...”。
小贴士：如果away前有具体的数字修饰时, 则不用far。
考点精讲
[高频]stay in touch 保持联系
e.g. I have stayed/kept in touch with him since we parted.
自从我们分开以后, 我与他一直保持联系。
Please stay/keep in close touch with me.
请与我保持密切联系。
拓展：get in touch with… 和……取得联系
lose touch 失去联系 out of touch 失去联系
考点6
同义短语为keep in touch。其中touch 作名词, 意为“联系”。
返回
考点精讲
⑤ Spending too much time online is harmful to people’s health.
be harmful to 对……有害
e.g. Watching TV too much is harmful to your eyes.
看太多电视对你的眼睛有害。
考点7
相当于do harm to...
它的反义短语为be good for...
意为“对……有好处”。
考点精讲
中考在线3：A little wine will not be _______ to your health. Just don’t drink too much. [无锡]
A. helpful B. helpless C. harmful D. harmless
C
返回
考点精讲
⑥It may even cause them to be less social with family and friends.
cause /k z/ v. 使发生；引起；造成
e.g. His absence caused me much trouble.
他的缺席给我造成了许多麻烦。
What was the cause of the accident
造成这一事故的原因是什么？
考点8
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
考点精讲
cause 起因；指引起某种后果的起因。 cause 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。 reason 常与for 连用, 即“the reason for...” The reason for my absence was that I was ill. 我缺席的原因是我生病了。
辨析：cause与reason
考点精讲
中考在线4：Every year driving after drinking wine _______ a lot of traffic accidents. [内江]
A. happens B. provides C. causes
C
考点精讲
less /les/ adj.& adv. (little 的比较级) 更少的(地)；更小的(地) n. 较少量；较小的部分
e.g. The film was less interesting than the book.
这部电影不如书有趣。
考点9
考点精讲
① less 更少的, 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。 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。
② 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。
辨析：less 与fewer
考点精讲
中考在线5：— Can you give me some advice on how to be slimmer
—Eat ______ meat and _______ cakes. [常州]
A. less; less B. fewer; fewer C. less; fewer D. fewer; less
C
返回
考点精讲
⑦Aside from that, some people attack the web or use the Internet to steal others’ personal information, even banking information.
aside from 除……之外
e.g. Aside from the little savings, I have no other money.
除了这点儿储蓄，我再也没有钱了。
Aside from cars, the factory turns out bicycles.
除小汽车之外，这家工厂还生产自行车。
考点10
考点精讲
steal v. 偷；窃取
e.g. Their car was stolen.
他们的汽车被偷了。
Yesterday the thief stole the wallet from me.
昨天那个小偷偷走了我的钱包。
考点11
steal—stole—stolen
steal sth. from...从……偷某物
返回
考点精讲
⑧The Internet can be a useful tool, but don’t let it take up all of your time.
take up 占据；占用；开始从事；接受( 提议)
e.g. It will take up the whole afternoon to prepare a meal.
做一顿饭要花整个下午的时间。
That big clock will have to go. It takes up too much space.
那个大钟得拿走。它占用了太多空间。
考点12
占用；占据
考点精讲
He took up writing after graduation.
毕业后他开始从事写作。
“开始从事”, 后接名词、代词或动名词作宾语。
中考在线6：Stop playing computer games. It ______ too much of your time. [大庆]
A. takes up B. takes off
C. takes back D. takes down
A
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课堂小结
本节课我们主要学习了以下重点内容：
重点单词：cause, less
重点短语：aside from
