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2. Put the verbs in brackets in the correct form in this description of gps. .

GPS helps drivers ………….. 1 (find) the quickest route and prevents walkers ……………..2 (get) lost. It allows mapmakers …………3 (locate) a feature exactly. GPS is made up of satellites ……………….4 (orbit) the earth combined with mapping software……………….5 (build) into receivers. The receivers pick up signals from at least three satellites and use the information ……………6(calculate) their exact position. To prevent terrorists ……………….7 (use) the system for missile control, the US Defebse Department ………………..8 (use) to build in some error but this is no longer done. GPS is the basic for car navigation systems. If the driver goes off route, the system causes warnings ………………..9 (broadcast) in the car or makes a light ………………10 (flash) on and off.

3. Rewrite each of these statements by replacing the words in italics with en-/-en or phrasal verbs of a similar meaning.

1. Make sure the PC is disconnected before you remove the case.

2. You can make the picture on your monitor wider.

3. Hackers closed Hotmail for five hours.

4. Although it is not recommended, most people record their passwords.

5. A gateway makes it possible for different kinds of networks to communicate.

4. Translate into Ukrainian.

There are Trojan Horses and there are viruses, but there's no such thing as a Trojan Horse virus. In fact, the very definition of each precludes any chance of there being such a thing. A Trojan does not replicate. Viruses do. That fact alone means there can never be a "Trojan Horse virus".

A Trojan is a program that appears to be legitimate, but in fact does something malicious. Quite often, that something malicious involves gaining remote, surreptitious access to a user's system. Unlike viruses, a Trojan does not replicate (i.e. infect other files), nor does it make copies of itself as worms do.

5. Some people argue that the Internet was the greatest invention of the 20th century. What do you consider to be the greatest invention of the 20th century? Choose an invention and write three reasons why you think it is the greatest invention of the 20th century.

Invention _____________________

1____________________________

2 ____________________________

3 ____________________________

6. Complete the text with discourse markers from the box.

for the first time but then prior to not only in this sense it also meant that but with as well as

(1) _________ did the camera changed the way we record history (2) ______ people from all walks of life could participate in creating historical documents for future generations. (3) _________ the invention of the camera nearly all visual recollections of the past were in the form of painting and drawings which tended to be commissioned by the nobility or for religion. There were far fewer documents of how normal life was lived. (4)________ the introduction of the camera this all changed. (5) ___________ people from all areas of life were able to document their lives.

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