Vocabulary practice setion 4
1. Read these descriptions of different physical topologies of communication networks and match them with the terms in Key information section 4.
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All devices (computers, printers, etc.) are connected to one another forming a continuous loop.
2. A network administration has set up a new network at a school. Which topology has she chosen?
We have decided to install computers in all the departments but we haven’t spent a lot of money on them. Actually, only the one in the staff room is really powerful and expensive! They all have common access to the Net and share a laser printer. The teachers in this school have built up a general file of resources kept in the main computer to which all the others in the network have access.
3. Look at these four extracts. Which criteria is the writer using to classify the networks he’s describing?
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network protocol geographical area topology architecture |
1. The most common examples of networks are LANs, PANs, MANs and WANs.
2. There are several languages that the computers on a network can use to communicate with each other. For example, the Internet uses TCP/IP.
3. A client-server network differs from a peer-to-peer network in several ways, the most important being that on a peer-to-peer network, there is no need for a separate computer to act as a server.
4. The most common layouts for networks are bus, star and ring.
GRAMMAR PRACTICE SECTION
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Participle clauses: contrast, reason, result, time. 1. Match the sentences with the explanations. |
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1. Although I understand your problem with the net, I can’t help you, I don’t have time. = While/in spite of/ despite understanding your problem, I can’t help you, I don’t have time. |
a. Past participle clause (having + past participle) in place of clauses of reason in the present perfect or past simple. | |
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2. He told her about new model of the computer they’d planned to buy and so he ruined the surprise for her. = He told her about new model of the computer they’d planned to buy, ruining the surprise for her. |
b. After, before, since, while, on are used in participle clause to show actions happen at the same time or different time. | |
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3. We decided to use different forms of multimedia because we want to send our ad messages to a great amount of people. = Deciding to use different forms of multimedia because we want to send our ad messages to a great amount of people. |
c. To emphasise that one action happened before another, past participle (having + past participle) is used at the beginning of the sentence. | |
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4. As he’s worked with the program for a long time, he can work wonders. = Having worked with the program for a long time, he can work wonders. |
d. While, in spite of, despite are used to introduce present participle clauses in place of contrast or concession clauses. | |
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5. When I tried the program for the first time, I didn’t like it. = On trying the program for the first time, I didn’t like it. (same time) I studied all the applications and then I did the work much quicker. = After studying all the applications and then I did the work much quicker. |
e. Present participle clauses in place of clauses of result. | |
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6. I’ve made all downloads and was ready to work. = Having made all downloads I was ready to work. |
f. Present participle clauses in place of clauses of reason. | |
2. Write a story with participle clauses of contrast, reason, result, time.
READING PRACTICE SECTION
1. What social networks do you use? Why? What applications and tools of your favourite social network you find valuable, necessary or useless?
Read the text. Answer the questions:
Do we have similar social network for tweeting?
Would you like to tweet?
What kind of tweeting (situations, topics, places) would you prefer?