1
UNIT 13
The World Wide Web
2
Starter
1
Starter 1
• Country Code: UK
• Document Name: irn.html
• Protocol Prefix: http
• Domain Name: hw.ac.uk
• Directory Path: libWWW/irn
• Domain Name Extension: ac
• Web Service: www
4
Starter
2
Starter 2
1.
2.
3.
4.
5.
6.
7.
D
E
F
B
G
A
C
6
Listening
3
Listening 3
A.
B.
C.
D.
E.
F.
3
5
4
6
1
2
8
Listening
4
Listening 4
Stage 2:
• The DNS server finds the IP address of the URL Web server.
• It sends the IP address to the browser.
Stage 3:
• The browser uses the IP address to request the webpage.
• It sends the request in a series of data packets via a router.
•The router determines the best route for each packet.
• The web sever puts the packets together again.
Listening 4
Stage 4
• The web server sends the requested page to the
browser computer in the same way.
• The browser combines the packets to form the page.
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Language Work
5
Language Work 5
1. When you use a search engine, it provides a set of links
related to your search.
2. With POP3, email is stored on the server until you check
your email account.
3. Once/When you have clicked on a hyperlink, you have to
wait for the webpage to be copied to your computer.
4. As you listen to the first part of a streamed audio file, the
next part is downloading.
5. The graphics can be displayed gradually as the webpage is
downloaded.
6. 6: After/ When you receive an email message, you can
forward it to another address.
Language Work 5
7. When you click on a hyperlink, the browser checks
to see if the linked webpage is stored in the cache.
8. You can bookmark a webpage to make it easier to
find in the future when you find one you like.
9. After you type in a web address, you should press
the Enter key.
10. When you click on the home button, the browser
displays your starting webpage .
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Language Work
6
Language Work 6
• when
• When
• before
• Once/When
• as
• as/before
• When
• until
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Problem Solving
7
Problem Solving 7
1. Define: spoofing
2. Sumo wresting Hawaii – Japan
3. Satellite receivers $250….400
4. Image search elephant African- Indian filetype: gif
5. Directory search News > Newspapers > Regional >Hong
Kong.
6. “ Ask not what your country can do for you - ask what you
can do for your country” John Kennedy
Problem Solving 7
7. DVD video recorders 2005…2011
8. Recipe brownies hazelnut OR chocolate chip
9. Image search David-Victoria Beckham
10. Advanced search
All of the words: Inca Peru
Language: English updated
Date: past year
Where your keywords show up: in the title of the page.
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Specialist Reading
Specialist Reading
A)
1.
2.
3.
4.
5.
6.
SMTP, POP3 and IMAP4.
SMTP
PCs are not guaranteed to be switched on at all times.
UNIX and Web mail.
On the receiving (local) server.
The mail server opens a connection to the POP3
server. The messages are then copied into your Web
mailbox and read via a browser.
Specialist Reading
7. Advantage: It allows emails to be picked up from different
machines without losing any.
Disadvantage: If too many messages build up, each
download will take a long time and fill up your inbox.
8.
i. It allows you more choice over what messages you
download. You can download just those messages you
want to read.
ii. You can delete individual messages from the server.
iii. Some IMAP4 servers let you organize your mail into
folders.
iv. Download times are shorter.
v. There is no danger of losing messages.
Homework
• Specialist Reading, Part B
Specialist Reading(H.W)
B)
1- Mark the following statements as True or False:
a. T
b. F
c. T
d. F
e. T
f. F
g. F
Specialist Reading(H.W)
B)
2- Match the terms in Table A with the statements in Table
B:
a. (iv)
b. (i)
c. (v)
d. (iii)
e. (ii)