Unit 4 Information technology Lesson 3 课件(共24张PPT)北师大版(2019)必修第二册

(共24张PPT)
Unit4 Lesson3
Internet and Friendships
harm
argument
replace
hug
concentrate
concerned
be concerned with
rewarding
addition
in addition
vt.&n. 伤害，损害
n. 论点；论据
vt. 取代；接替
n.&vt. 拥抱；紧抱
vi. 专注,专心；集中注意力
adj. 关切的，关心的
关心……
adj. 有益的；有意义的
n. 增添；添加
除此之外
Words review
content
shallow
trivial
basis
percent
opinion
focus
focus on
maintain
smartphone
n. 内容
adj. 肤浅的，浅薄的
adj. 没有什么价值的；微不足道的
n. 基础；基点
n. 百分比；百分数
n. 意见；看法；主张
vi. 给予某物关注；n. 焦点
关注
vt. 保持；维持
n. 智能手机
Words review
tablet
limiting
brief
emoji
creative
thought-provoking
authority
n. 平板电脑；药片；碑，牌
adj. 局限的，限制性的
adj. 简洁的，简明的
n. 表情符号
adj. 创造性的
adj. 发人深省的，令人深思的
n. 权威人士；专家
Words review
How do you interact with your friends in your daily life
For example:
I often give a like to my friends’ WeChat Moments.
Leading-in
How do you interact with your friends on the Internet
chat online
search information
watch/share news and videos
watch films and TV series
play games
shop online
...
Leading-in
Do you think the Internet helps or harms friendships
help
harm
Leading-in
Positive aspects
brings people closer together
makes communication convenient
and fun
makes people self-centred
can be dangerous
Negative aspects
Give your reasons and write them down
in the following table.
Pre-reading
1.What is the general idea of the lesson
A. The Internet harms friendships.
B. The Internet helps friendships.
C. Different opinions about the influence of the Internet on friendships.
The Internet Helps Friendships
by Robert
The Internet Harms Friendships
by Cathy
Pre-reading
2.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).
3.What’s the structure of the two blogs
√
Pre-reading
B. Internet harms friendships.
E. Talking online can not replace face-to-face contact.
D. Internet makes people self-centred.
C. Friends should focus more on face-to-face contact.
A. Online relationships may be risky.
Match the main idea with each paragraph.
General idea
Argument 1
Argument 2
Argument 3
Conclusion
Argument1Talking online can not replace face-to-face contact._______ cannot replace a _______ _______ or __________;Communication through a screen makes it more___________for children to___________ or show _________ to others;Imagesreal-lifesmilehugconcentratekindnessRead paragraph 2 and fillthesupporting detailsin the blanks.differentWhile-readingArgument2Internet makes people self-centred.Some people are only__________with their__________ __________;The _________ posted on social media is_________ or ________, which don’t necessarily help form _________ __________.onlinepopularityshallowcontentstrivialmeaningfulrelationshipsconcernedRead paragraph 3 and fillthesupporting detailsin the blanks.While-readingArgument3Online relationships may be risky.Friendships are built on ______________,with online communication you can never be 100 percent sure that the people you are chatting to are being _______Going online can be_________ for people who are _________ _________ or _________ __________.the basis of trusthonesteasilyinfluencedtootrustingdangerousRead paragraph 4 and fillthesupporting detailsin the blanks.While-readinga.
b.
d.
a. citing ideas from experts or authorities
e.g. According to the expert/authority...
b. giving examples
e.g. for example
c. using data
d. referring to common knowledge
e.g. As we know; It is known to us all...
e. using comparison and contrast
e.g. However; But...
Here are five methods writers often use to support their arguments.Read the first blog again. Identify what methods the writers used to support their arguments.Find examples from the text.
While-reading
Read Cathy’s blog and fill the chart below.
Arguments Supporting details Methods to support arguments
General idea
Conclusion
While-reading
Arguments Supporting details Methods to support arguments
Gnenral idea
Conclusion
The Internet can help develop friendship in many wasys.
The Internet brings people closer together and makes communication with friends more convenient and interesting.
Internet makes communication much more convenient.
Internet makes communication more fun.
Online communication can bring people closer to each other.
You can stay in touch with friends no matter where you are or what you are doing.
You can share photos, videos, news stories and websites with your friends online.
Whenever someone needs help, friends from all over the world canmmediately provide useful suggestons or infomation. This makes friends feel loved and cared for.
Make comparison and contrast (However,you can share photos...online.)
Refer to common knowledge(Nowadays,...information.)
Cite ideas from experts or authorities(As Eileen....can’t.)
How to write
an argumentation
Body
Conclusion
Argument 1
Argument 2
Argument 3
General idea
Topic sentences
Supporting details
The structure of an argumentation
Group work: Choose one position.Make a speech.
Sthudent A is responsible for general idea and conclusion.SuudentB,C and D are responsible for 3 arguments and their supporting details.
“The Internet Harms Friendships”
“The Internet
Helps Friendships”
Post-reading
Internet is a double-edged sword.It is your ______________ that matters.choice/view★Weought to make use of the Internet properly and smartly.★As long as we can develop a goodrelationship with friends, there is no cause for concern about the Internet.Emotional Education ★Must
Write an argumentative passage on how we should use the Internet by following the structure of Lesson 3.
★Optional:
Make a speech about how the Internet affects our life, and share it with your classmates next lesson.
Homework
Complete the adjectives. Choose at least five adjectives to write five sentences in the space given. You may express either positive or negative opinions about the use of the Internet.
1. r_w_rding
2. s_all_w
3. c_n_e_ient
4. sel_-cen_ _ ed
5. l_mi_ing
6. b_ief
7. c_ea_ive
8. ch_erf_l
9. tr_s_ing
10. th__ghtprovoking
e a
h o
o v n
f t r
i t
r
r t
e u
u t
ou
Focus on Language
Complete the compound words with a word from the circles. Then use them in the summary below.
Word Builder
Compound Words
1. friend ___________
2. any ___________
3. per ___________
4. web ___________
5. on _________
6. self- _________
7. real-_________
8. smart_________
site
ship
cent
thing
phone
line
centred
life
ship
thing
cent
site
line
centred
life
phone
Thank you!