外研版选修9 Module 4 Languages of the World cultural corner 课件（22张PPT）

(共34张PPT)
Dangerous!
Book9 Module 4
CULTURAL CORNER
Read This Carefully- Computer Viruses Are Dangerous!
Read This Carefully- Computer Viruses Are Dangerous!
Why are computer viruses dangerous?
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Passage Structure
Computer viruses
Computer viruses have done great damages in the past few years.
The next virus would be worse.
Para 1-2
Para 3-6
Para 7
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Part1

a programme
enter a computer
damage or destroy
make copies of itself
threatening and dangerous
A computer virus
Part2




a million
more damage
within
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In March1999
On the 26th April 1999
Love letter
In 2003
Time virus influence
The Melissa virus the business world
The Chernobyl virus about a quarter of ________ personal computers in South Korea alone
In the spring of 2000 millions of computers and ________________than any other one
SoBig-F one in 17 of all emails _____ 48 hours and 148 countries
the Melissa virus
Why was this virus spread so easily?
open an email
be sent to the first 50 names
fool many people
come from someone they knew
Chernobyl
1986年一声巨响彻底打破了这一神话。由于操作人员违反规章制度，核电站的第4号核反应堆突然失火，引起爆炸，其辐射量相当于400颗美国投在日本的原子弹。8吨多强辐射物质泄露，尘埃随风飘散，致使俄罗斯、白俄罗斯和乌克兰许多地区遭到核辐射的污染。切尔诺贝利核事故被称作历史上最严重的核电事故。
切尔诺贝利核电站位于乌克兰北部，是前苏联时期在乌克兰境内修建的第一座核电站。曾被认为是最安全、最可靠的核电站。
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Love letter
Each year brings a new danger.
WannaCry
over 150 countries
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In May 2017
Wannacry
Healthcare industry
universities
ransomware virus (勒索病毒)
How do the viruses spread?
open an email message
be sent to the first 50 names
via email or through Internet chat
rooms
the Melissa virus
Love letter
Viruses (bugs) typically make copies of themselves which are sent to other people via a user’s address book.
Part3
我们做到以下注意事项，就可以有效地预防计算机中毒：
1. 收到陌生可疑邮件，请谨慎处理不要贸然点开，尤其是包含链接和附件的那种。
2.只到正规下载站去安装软件，不随便搜索下载安装软件。
3.定期异地备份计算机中重要的数据和文件，万一中病毒可以进行恢复。
4.及时修复系统漏洞，至少安装一款杀毒软件和一款数据恢复软件。
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summary
Computer viruses are computer programmes which make copies of themselves and are sent to other people via a computer user’s address book. They enter computers and damage or destroy files and information.
Computer viruses are dangerous and they have done great damage in the past few years. The next virus could be even worse.
Make sure of cyber security
Prevent criminal activities: such as terrorism and gambling.
Promote the healthy development of the Internet.
Obey the cyber security law.
Whatever the purpose, we mustn’t design computer viruses which do harm to our society.
TASK
You are preparing a talk to native English speakers who are thinking about learning your mother tongue.
What aspect of the language do you think they will find:

Think about the differences and similarities between English and your mother tongue:
most difficult easiest
most interesting most different from English
pronunciation spelling writing
spoken forms grammar
Chinese for English native speakers
Most difficult Polysemy
(打：打人，打扫，打电话，打水)
easiest Pronunciation (four tones—stress)
Most interesting Writing
Most different Writing and measure words
(一匹马，一个人，一张桌子)
Differences between Chinese and English
Chinese English
pronunciation Four tones
q,r,ong stress
spelling
writing
grammar active voice
必须承认 passive voice
It must be admitted
Task
Prepare a talk about your mother tongue.
Present your talk to the rest of the class.