1、单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,Attribute II,定语,A Guessing Game,Place,Person,Time,1,2,1,2,1,*It was a person,remembered,by,many people in the United States.,*It was a famous person,with,whose,help,all the black people in the United States got equal rights.,*It was a person,who,was shot
2、by the person,that,hated him while watching a movie in the theatre.,Abraham Lincoln,*They are the kind of people,who,are around you when you need them.,*They are the kind of people,who,will not judge you by your appearance or words but by your deeds.,*They are the kind of people,to whom,you may turn
3、 for help when you are in trouble.,*They are the people,strongly believing,“A friend in need is a friend indeed”.,friends,*It is a great place,where,surfing,sailing and swimming are popular.,*It is a country,which,covers the whole continent.,*It is a country,where,the Sydney Opera House is located.,
4、It is a paradise,in,which,many peculiar animals live,such as kangaroos and koala bears.,Australia,It is a theme park,which,attracts people of all ages.,It is a theme park,where,you can get entertained by seeing the castle of the sleeping beauty.,It is a park,where,you have the chance to see many ca
5、rtoon characters and enter their adventure world.,Disneyland,*It is a,special,day for all of us.,*It is a day,when,all the friends will come to celebrate it with you.,*It is a day,on which,you will receive many gifts,sent,by friends.,Birthday,Items,Key words,Beijing,Olympics,hold,population,13 milli
6、on,policemen,hard-working,turn to for help,June 1,st,children,happy,parents,celebrate it with children,computer,business,do,quickly,teleworking,possible,2008,(year),hold the 29,th,Olympics,volunteer to help,Tom,born in Beijing,five friends,3,in Shanghai,Description,E.g.Beijing is the city,()1.The in
7、ternet is a network that allows computers to communicate and share information.,()2.A message is often sent as one packet to another computer.,()3.A message is usually broken into small pieces and then sent to its destination.,()4.Information can only be in the form of words and images.,Listen and d
8、ecide if it is true or false.,T,F,T,F,The internet is a vast network,_,allows computers around the world to communicate and share information.Huge amounts of information,_,the form of words,images,sounds and computer software are transmitted through the Internet.The Internet links computers mainly b
9、y the telephone system,through copper wires,optical fibers,cables or radio waves.Access to the internet begins with a computer,_,_,the telephone lines through a device,called,modem(,调制解调器,).Special software is needed to convert computer files into the type of signals _ can travel through telephone w
10、ires.,Blank filling,that,in,linked to,that,The signals are then lunged into the phone lines through the modem.The phone lines lead to an internet service provider or a commercial online service,_,acts as,a counter way to the internet.Computers break the message up into packets,clusters of 40 to arou
11、nd 1500 characters.Each packet,individually,_,with its destination,is then sent through a series of computers,_,Routers,(路由器),_,direct the path of the packet.Each Router examines the packets to see where it is headed and sends it along the best path to its destination.Packets,_,the same message may
12、take different routes to reach the same destination.The packets eventually all arrive at the same place and are pieced backed together into the original message.,which,marked,called,that,from,messages,from the sender,messages,to the receiver,modem,Router,modem,Messages _ from a computer are transmit
13、ted through the telephone lines _ _ a series of computers _ Routers.The messages are then _ into small packets and directed to its destinations.After the messages arrive at the computer of the receiver,they are pieced back into the original messages.,sent,linked,to,called,broken,Discussion,1.How does the Internet benefit us?,2.What are the problems we face when using the Internet?,Homework:,Write down a paragraph about the Internet including the benefits it brings us and the problems when using it.,messages,






