1、Department of College English,Experiencing English,Book Two,Department of College English,Unit 8 Computers and Security,Procedures,Passage A Warm-up Activities Culture Notes Language Points Difficult Sentences Summary Follow-up Activity Assignment,Department of College English,Department of College

2、English,Passage A You Are the Weakest Link, Goodbye,Warm-up Activities What do you know about computer viruses? (eg. name, damage power, how to spread, how to protect computer from them) Have your computers been infected by viruses? Why or why not?,Department of College English,Culture Notes,desktop

3、, laptop and even hand-held PC personal computer/ portable computer,Department of College English,Brand Names of Computers,Compaq： IBM：International Business Machine Apple： Tulip： Sony： Toshiba： Philips： Samsung：,Department of College English,playing computer games hard disc capacity sound card, scr

4、een/monitor compact space-saving,Computer Terms,Department of College English,Computer Terms,compatibility mouse keyboard hardware/software online/offline download/upload network/website/cyber the Internet/intranet,Department of College English,Macro Viruses,Macro viruses are computer viruses that u

5、se an applications own macro programming language to distribute themselves. These macros have the potential to inflict damage to the document or to other computer software. The infecting files can be modified or deleted and may not be recoverable.,Department of College English,Melissa,Department of

6、College English,The Love Bug,The virus is circulating through email and affecting many customers. If run, the virus could overwrite .jpg, .mp3, and other file types, and attempt to send a copy of itself to everyone in the recipients address book.,The Love Bug virus is also called the Loveletter Viru

7、s, or simply I Love You.,Department of College English,Language Points,1.innocent: adj.( of things) harmless, knowing nothing of evil or wrong; (of people) guiltless Dont be so innocent as to believe everything you see. Is she guilty or innocent of the crime?,Department of College English,Language P

8、oints,2. or so: about She will be back in a day or so. In another year or so, Lucy will have forgotten all about him.,Department of College English,Language Points,3. encounter: vt. 1) meet or be faced by (something bad, especially a danger or a difficulty); 2) meet unexpectedly. We encountered a se

9、rious setback when two members of the expeditions were injured. I first encountered him at summer school.,Department of College English,Language Points,4. unusual: adj. not common; rare Its unusual to find diamonds of this size. Earlier this century, it was unusual for women to have a career.,Depart

10、ment of College English,Language Points,5. infect: vt. 1) fill with disease, germs; give disease to (a person); 2) If your excitement, eagerness etc. other people, it makes them begin to feel the same way. You can only be infected with with HIV in a limited number of ways. Lucys enthusiasm soon infe

11、cted the rest of the class.,Department of College English,Language Points,6. transmit: vt. send or pass from one person, place or thing to another. The US Open will be transmitted via satellite. Do you know that an infection may be transmitted by mosquitoes?,Department of College English,Language Po

12、ints,7. clean up: clean thoroughly We spent all Saturday morning cleaning up. Let me just go and clean myself up.,Department of College English,Language Points,8. in place: in the right or proper place Have you got all the lights in place yet? cf. out of place I felt completely out of place among al

13、l those smart rich people.,Department of College English,Language Points,9. ensure: vt. make (something certain) to happen All necessary steps have been taken to ensure their safety. His husband ensured that he took all his pills every day.,Department of College English,Language Points,10. adequate:

14、 adj. enough for the purpose Without the proper resources the department cannot do an adequate job. Are the parking facilities adequate for fifty cars?,Department of College English,Language Points,11.detect: vt. find out; notice Many forms of cancer can be cured if detected early. Do I detect a not

15、e of sarcasm in your voice? adj. detectable,Department of College English,Language Points,12. update: vt. make more modern or up-to-date We need to update the defensive weaponry. The files need updating.,Department of College English,Language Points,13. considerable: adj. fairly large or great in am

16、ount, size, or degree He has been ill for a considerable time. The sun was now high in the sky, and the heat very considerable.,Department of College English,Language Points,14. identify: vt. prove or show who or what somebody is or something is The light was too dim for me to identify her. I identi

17、fy myself first. They were reluctant to identify themselves fully with any particular side.,Department of College English,Language Points,15. inflict: vt. give (a blow, etc); cause to suffer They wont let any foreign power inflict any further blows on their national pride. Our army is inflicting hea

18、vy losses on the enemy.,Department of College English,Language Points,16. set in: begin and (probably) continue Luckily the wound was treated before infection could set in. He must try and get my garden tidied up before the bad weather sets in.,Department of College English,Language Points,17. reced

19、e: vt. (of thing) move back or away The coast receded as we sailed away. The plane gradually receded out of sight.,Department of College English,Language Points,18. at risk: in danger The disease is spreading, and all children under 5 are at risk. The economy will fall further, putting more jobs at

20、risk.,Department of College English,Language Points,19. more often than not: in most cases On weekends, more often than not, youd find my uncle at work. More often than not the patient recovers.,Department of College English,Language Points,20. come across as: seem to be (judging from behavior or ac

21、tions) Bill Clinton came across to voters as (being) honest, sincere and hard-working. Mike came across (to me) as (being) quite a nice person.,Department of College English,Language Points,21. odd adj. 1) not regular, habitual, or fixed; occasional 2) strange; unusual He had some odd change in his

22、pocket. It is odd that I cant remember Marys address.,Department of College English,Language Points,22. harbor: v. give protection to The child fled to the harbor of her fathers arms. The trees harbor monkeys.,Department of College English,Language Points,23.conflict: n. disagreement; opposition The

23、 conflict between Greece and Troy lasted ten years. My brother and I had a personality conflict.,Department of College English,Language Points,24. as a matter of course: as a regular habit or usual procedure I check my e-mail every morning as a matter of course.,Department of College English,Difficu

24、lt Sentences,1.It wasnt unusual to find hundreds of commuters within one company infected by viruses transmitted via email attachments. As often the case that in the same company hundreds of computers would have viruses if the employees had opened email attachments containing these viruses.,Departme

25、nt of College English,Difficult Sentences,2. Companies now realize that viruses arent “urban myths” and can have a serious impact on their operations. Companies now understand that viruses are not modern made-up stories, and they can do great harm to a companys operations.,Department of College Engl

26、ish,Difficult Sentences,3. With the rapid transmission of files through networks and the Internet, a virus can spread a considerable distance before it can be identified and protected against. With the fast spread of information through networked computers and the Internet, a virus can reach many co

27、mputers before anything can be done about it.,Department of College English,Difficult Sentences,4. Complacency can set in when there is no perceived “action” on the virus front and no global crisis and the importance of being vigilant about viruses recedes in your users minds. People may ignore viru

28、ses and stop worrying about them when no major worldwide viruses have been reported recently, and the need to be very on guard against viruses if easily forgotten.,Department of College English,Difficult Sentences,5. However, the worry comes when employees start risking company security in pursuit o

29、f personal amusement. But the worry arises when employees start breaking the company security rules in order to amuse or entertain themselves by doing personal downloading from the Internet.,Department of College English,Difficult Sentences,6. Virus writers and hackers often use such software as the

30、 ideal “kick-start” for their virus distribution. Virus writers and people who break into other peoples computer files often use such software as the best means to get their viruses to start spreading.,Department of College English,Summary,The weakest link in the protection of a companys computers a

31、gainst viruses is the individual computer user. There is a strong tendency that the employees assume it is the companys computer security experts job to worry about the viruses and they can bring the problem under control. But everyone must do their share to prevent viruses. Any unsolicited email at

32、tachment or any untested type of software may contain a virus.,Department of College English,Summary,Even the best anti-virus software is not always effective and must be frequently updated. Constant education of all employees about viruses is the key to virus prevention. No one should ever be allow

33、ed to relax their defenses, even if this means the company must have some rules set that employees might not like.,Department of College English,Follow-up Activity,Watch a movie clip and talk about the functions of computers in the modern society.,Assignment,Write a paragraph of around 100 words exp

34、laining that companies should do more than invest in anti-virus software to protect against computer viruses.,Procedures,Passage B Warm-up Activities Culture Notes Language Points Difficult Sentences Summary Follow-up Activity Assignment,Department of College English,Department of College English,Pa

35、ssage B So Sorry to Bug You,1. How often do you email your friends?,2. How would you solve the problem if your computer is inflicted by viruses?,3. What would you do if you accidentally spread an virus?,Warm-up Activities,Department of College English,Culture Notes,Colorful Skyscrapers,Mexico is the

36、 largest Spanish-speaking country. The second-largest Roman Catholic nation in the world. Mexico City. One of the worlds fastest-growing metropolitan areas.,Mexico Volcano,Mexico,Department of College English,Yucatan, Mexico,Yucatan Maya Ruins: Sculpture and Pyramid,Department of College English,The

37、 Andromeda Strain,The Movie: A group of scientists investigate a deadly new alien virus before it can spread.,Michael Crichton, author of The Andromeda Strain, Congo, The Great Train Robbery, The Rising Sun, Jurassic Park, and The Lost World.,Department of College English,The Homepage Virus,http:/ww

38、w.europe.f-,Homepage worm spreads using Outlook Application. It sends messages with the content as shown in the picture right: When the attached file is executed, the worm will send (mass mail) itself to each recipient in every address book.,Department of College English,The Philippines,Jeepney Cab

39、and Billboard in the Streets of the Philippines,Light Rail Transit in Manila,Department of College English,Language Points,1. correspond: v.exchange letters (with) He frequently corresponds with his brother. She and he corresponded for many years before they met.,Department of College English,Langua

40、ge Points,2. swear: v. state firmly Will you swear that you were not there? I swear on a Bible to observe secrecy.,Department of College English,Language Points,3. recall: v. remember I recall seeing a poster on his wall. The pictures recalled me back to the days in Australia.,Department of College

41、English,Language Points,4. assume: v. take as true I assume you have heard the news. Farmers will have a bumper harvest, assuming that the weather is favorable.,Department of College English,Language Points,5. figure out: work out; understand by thinking I just cant figure her out, shes a mystery to

42、 me. I try to figure out a way to do it.,Department of College English,Language Points,6. get rid of: free oneself from (something unwanted) How can I get rid of worries? She denied firmly, getting rid us of the doubt.,Department of College English,Language Points,7. delete: v. cut out (esp. somethi

43、ng written or printed) He has deleted his name from the list. The patients high fever deleted most of his memories.,Department of College English,Language Points,8. irony: adj. a course of events or condition which has the opposite result from what is expected, usually a bad result There was irony i

44、n his tone. It was an irony that the firehouse burned.,Department of College English,Difficult Sentences,1. I felt like the doctor in The Andromeda Strain; the clock was outracing me. I felt like the doctor in a famous science fiction horror movie; the virus was spreading faster than I could stop it

45、.,Department of College English,Difficult Sentences,2. Each had a file attached, as doom-laden as a warhead. Each message contained a dangerous virus in the attachment, like a fatal bomb.,Department of College English,Difficult Sentences,3. Double argh! (It was) extremely embarrassing and disgusting!,Department of College English,Difficult Sentences,4.The worst part was that many of the people I had emailed were newbies - subscribers who had emailed me for help in connection with this column. (to be continued),Department of College English,Difficult Sentences,