北师大版（2019）必修第二册Unit 4 Information Technology Lesson3 Internet and friendships课件(共46张PPT)

(共46张PPT)
新北师大版高中英语必修二Unit4 Information Technology
Internet and Friendships
What do you use the Internet for
chatting online
searching for information
Leading in
watching short videos
playing games
...
shopping online
Leading in
What do you use the Internet for
chatting online
Leading in
Does the Internet help or harm friendships Why
Leading in
What is the general idea of the lesson
A. The Internet harms friendships.
B. The Internet helps friendships.
C. Opinions about the influence of the Internet on friendships.
(Para.1,Blog1) While the Internet can bring people closer,…harm…
(Para.1,Blog2) The Internet can help develop friendships……
Theme Inquiring
What is the style of the two blogs
A. Narration (记叙文).
B. Exposition (说明文).
C. Practical writing (应用文).
D. Argumentation (议论文).
An argumentative writing involves the arguments
and the supporting details.
Theme Inquiring
Argumentative Essay
1.General idea
2.Topic sentence of each argument
3.Supporting details
How to get the information quickly
While-reading
While-reading
While-reading
conclusion
Main Idea:
While the Inernet can bring people closer together, it can also harm friendships.
main idea
While-reading
Talking online is no replacement for face-to-face contact
Argument 1
Images really cannot replace a real-life smile or municating through a screen makes it more difficult for children to concentrate or show kindness to others.
Supporting details:
While-reading
The Internet can make
people self-centred.
Argument 2
Some people are only concerned with their online popularity. A lot of the content posted on social media is shallow or trivial.
Supporting details:
While-reading
Online friendships may not be what they appear to be.
Argument 3
With online communication you can never be 100 percent sure that the people you are chatting to is being honest about who they are.
Supporting details:
While-reading
Conclusion
Friends should focus more on
communication, and less on communication, which is the best way to maintain healthy relationships.
face-to-face
online
While-reading
Main Idea:
The Internet can help develop friendships in many ways.
main idea
While-reading
While-reading
conclusion
The Internet makes communication much more convenient.
Argument 1
Supporting details: You can stay in touch with friends no matter where you are or what you are doing.
While-reading
The Internet has also made communication more fun.
Argument 2
Supporting details: You can share photos, videos, news stories and websites with your friends online.
While-reading
Online communication can actually bring people closer to each other.
argument 3
Supporting details: Whenever someone needs help, friends from all over the world can immediately provide useful suggestions or information.
While-reading
Conclusion
The Internet brings people closer together and makes communication with friends more convenient and interesting.
While-reading
1.(Line9,Para.2,Blog1) Look at the sentence, “It is these skills that enable us to develop lifelong friendships”.
What does “these” refer to
2.(Line17,Para.4,Blog2) What does Eileen Kennedy-Moore mean when she says that online friends “fill holes real-life friends can’t”
metaphor
The word “these” refers to social skills, like concentrating or showing kindness to others.
Online communication is a solution when there are difficulties with face-to-face communication, i.e. friends live far apart, a person suffers from social anxiety and may find it easier to talk to people online, etc.
While-reading
What is the structure of the article
Structure-exploring
supporting
opinions
supporting
opinions
main idea
main idea
conclusion
conclusion
Language Points
1．Do you think the Internet helps or harms friendships？
你认为互联网有助于友谊还是有害于友谊？
harm vt.& n．伤害，损害　
harmful adj.有害的
harm及其派生词的用法和意义:
Your smoking can do harm to/be harmful to the health of your children.
你吸烟会危及孩子的健康。
There is no harm in apologising to him first.
先向他道歉没有什么坏处。
It is harmful to your health to drink too much.
过量喝酒对你的身体有害。
Language Points
①do harm ...　损害……
②There is no harm in sth. 做某事是个好主意(或没有坏处)
③be harmful 对……有害
to
doing
to
Language Points
2．Firstly，talking online is no replacement for face－to－face contact—images really cannot replace a real－life smile or hug.
首先，网上交谈不能取代面对面接触，图像真的无法取代现实生活中的微笑或拥抱。
replace vt.取代；接替；把……放回原处
replace的用法和意义:
It is generally believed that teachers will never be replaced by/with computers in class.人们普遍认为课堂上电脑永远不会取代老师。
John is ill and I want to know who is going to take the place of him/take his place.约翰病了，我想知道谁将代替他。
Language Points
1.replace sth. sth.　用……替换……
2.take the place sb.＝take one’s place 代替；替代
with/by
of
Language Points
3．According to a parenting expert, Denise Daniels, communicating through a screen makes it more difficult for children to concentrate or show kindness to others.
据育儿专家丹尼斯·丹尼尔斯说，通过屏幕交流使孩子更难集中精力或善待他人。
concentrate vi.专注，专心；集中注意力　
concentration n．集中；专心
concentrate的用法和意义:
Playing computer games can give us some relaxation after school, but as students we must concentrate on our studies.
放学后玩电脑游戏能使我们放松，但是作为学生，我们必须集中精力学习。
He concentrated his mind on studying the history of Loulan.
他专注于研究楼兰的历史。
Language Points
①concentrate (doing) sth.　专心(做)某事
②concentrate one’s mind/attention 集中注意力于；致力于；专心于
on
on
Language Points
4．In addition, a lot of the content posted on social media is shallow or trivial.
另外，在社交媒体上发布的很多内容都是肤浅的和琐碎的。
content n．内容；目录；容量；满足 adj.满足的；满意的 vt.使满足
content的用法和意义:
Andy is content with the toy. It is the best he has ever got.
安迪对这个玩具很满意，这是他得到的最好的玩具。
That rich man is tired of city life，so he is content to live in the country.
那位富人厌倦了城市生活，所以他愿意生活在乡下。
We should never content ourselves with book knowledge only.
我们永远不要仅仅满足于书本知识。
Language Points
①feel/be content 　对……满足/满意
②be content sth. 满足于做某事
③content oneself 满足于
with
to do
with
Language Points
5．For example，instead of having proper conversations with their friends，some people are only concerned with their online popularity—How many “likes” did I get？
例如，一些人不再和朋友进行有效地交谈，他们只关心自己网上的人气——我得了多少个“赞”？
be concerned with 关心……
as/so far as sb./sth. be concerned　　在某人看来，就某人/某事而言
be concerned about/for 对……担心/担忧/焦虑/关心/挂念
concern oneself with/about sth. 关心某事，担心某事
Language Points
①As far as I’m concerned，it’s necessary to figure out the cost first.
在我看来，先计算出成本是有必要的。
②We should be concerned about their health—both physical and mental health.
我们应该关心他们的健康——身体健康和心理健康。
Language Points
6．In addition, a lot of the content posted on social media is shallow or trivial.
另外，在社交媒体上发布的很多内容都是肤浅的和琐碎的。
in addition除此之外
in addition to　除……之外
add up 把……加起来
add sth. to sth. 把……加到/进……里
add up to 加起来共计/达(不用于被动语态)
add to 增加；增添
add that... 补充说……
Language Points
①These stoves are of high quality. In addition, the price is low.
这些炉子质量上乘。另外，价格低廉。
②Please add some sugar to the milk to make it more delicious.
请在牛奶里加些糖使牛奶更美味。
③The engine of the ship was out of order and the bad weather added to the helplessness of the crew.
船的马达失灵了，而且恶劣的天气增加了全体船员的无助感。
④He added that he felt very sorry for not being able to come.
他补充说，他为自己不能来表示歉意。
Language Points
7．In my opinion，friends should focus more on face－to－face communication，and less on online communication.
在我看来，朋友们应该更多地关注面对面的交流，少关注在线交流。
focus on关注
focus one’s attention/eyes/energy on集中注意力/目光/精力于……
the focus of attention 关注的焦点
in focus 焦点对准的；清晰的
out of focus 焦点没对准的；不清晰的
Language Points
①It took her a lot of time to focus on preparing her classes and correcting her students’ homework.
集中精力备课和批改学生的作业花费了她很多时间。
②You’d better focus your attention on your studies.
你最好把你的注意力放在功课上。
③She always wants to be the focus of attention.
她总是想成为关注的焦点。
④The children’s faces are badly out of focus in the photograph.
照片上孩子们的脸模糊不清。
Language Points
8．According to a parenting expert, Denise Daniels, communicating through a screen makes it more difficult for children to concentrate or show kindness to others.
据育儿专家丹尼斯·丹尼尔斯说，通过屏幕交流让孩子更难集中精力或善待他人。
句中makes it more difficult for children to concentrate or show为make复合结构。
其中it作形式宾语，真正的宾语是后面的动词不定式。
Language Points
用法总结:
(1)make＋it＋形容词/名词＋that从句
①Susan made it clear to me that she wished to make a new life for herself.
苏珊清楚地跟我表明她希望为自己创造新的生活。
(2)make＋it＋形容词/名词＋to do不定式
②The heavy rain made it impossible for us to go out.
大雨使得我们无法出去。
Language Points
用法总结:
(3)常用于这种句型的动词还有：think，consider，find，feel等。
③He considered it important for him to learn spoken English well.
他认为学好英语口语对他来说是重要的。
④I find it no use arguing with Bill because he never changes his mind.
我发现与比尔争辩没有用，因为他不会改变主意。
Language Points
9．It is these skills that enable us to develop lifelong friendships.
正是这些技能才使我们能保持终生的友谊。
句中“It is...that”为强调句型。其基本结构为“It is/was＋被强调部分＋that/who＋其他成分”，本句中被强调部分为these skills。
Language Points
用法总结:　
(1)强调句型的基本结构：It is/was＋被强调部分＋that/who＋句子其他部分。
①But rules alone don’t secure an orderly society. It is the people who obey the rules that (who) matter.
但是制度本身不能保证一个有序的社会，遵守规则的人才是重要的。
(2)一般疑问句的强调句型：Is/Was it＋被强调部分＋that/who＋句子其他部分？
②Was it three years ago that he went to America for further study
他是三年前去美国深造的吗？
Language Points
用法总结:　
(3)特殊疑问句的强调句型：疑问词(被强调部分)＋is/was＋it＋that＋句子其他部分？
③When was it that you got promoted
你是什么时候升职的？
(4)not...until...结构的强调句型：It is/was not until...that...
④It was not until near the end of the letter that she mentioned her own plan.
直到将近信的结尾她才提及了自己的计划。
Language Points
【注意】
(1)在强调句型中It本身没有实际意义，但不能被其他词代替；被强调部分可以是主语、宾语和状语等；被强调部分指人时，可用that/who，其他情况一律用that。
(2)判断是否是强调句型的方法：把It is/was和that去掉，看句子的结构及语意是否完整，若完整，则为强调句型；若不完整，则不是。
Language Points