3.1 Fill in the gaps with that/ who.

1 That’s the CPU that you’d like to buy.

2. A co-processor is an extra processor chip That does calculations at high speed.

3. The microprocessor coordinates the activities That take place in the computer system.

4. Last night I met someone who works for GM as a computer programmer.

4. A palmtop is a computer that is small enough to be held in the palm (ладонь) of one hand.

5. A megahertz is a unit of frequency that is used to measure processor speed.

6. Here’s the DVD that you lent (одолжить) me!

3.2 Complete the sentences using who, which, that, whose or where.

1 She works for a company whose main office is in Rome.

2 They've invented a digital video camera that can be carried in the pocket of your jacket.

3 Do you know the school where he studies?

4 The man who married Sue is a millionaire.

5 She’ll be responsible for anything which goes wrong.

3.3 Complete the definitions 1-6 using relative pronouns and the extra information in a-f.

e.g. A barcode is a pattern of printed black lines which supermarkets use for prices.

1. A barcode is a pattern of printed black lines (a)

2. CD-ROM drive is a common storage device (c)

3. An anti-virus program is a type of software (e)

4. A hacker is a person (f)

5. A software engineer is a person (b)

6. A palmtop (КПК) is a very small computer (d)

a supermarkets use them for prices

b he/she writes software

с it reads data from a CD-ROM disk

d it can be held in one hand

e it protects your computer from viruses

f he she invades (вторгается) a network's privacy

3.4 In which sentences can the relative pronoun be left out? Rewrite them without who, that or which.

1. Have you got a video camera that I can use?

2 That is the girl who lives next door.

3 That is the girl (who) I met at the conference.

4 The police have arrested the hacker who broke into the computers of the Pentagon.

5 That's the film (which) I was talking about.

6 Have you read the report which Jack wrote last week?

3.5 Read the box. Change these sentences to emphasize the words in italics.

e.g. Lucy answered the phone. It was Lucy who answered the phone (not Kim).

1. Mary broke your camera. – It was Mary who broke your camera.

2. I saw a spaceship, not a UFO. - It was a spaceship what I saw.

3. I bought a DVD last Friday. - It was a DVD what I bought last Friday.

4. Paul sent e-mail yesterday. – It was Paul who sent e-mail yesterday.

5 Jack wrote this article. – It was Jack who wrote this article.

3.6 Rewrite these sentences to emphasize the words in italics.

1. I like the fact that my books are available everywhere.

2. Bill Gates introduced the Windows NT operating system in 1993.

3. Bill Gates introduced the Windows NT operating system in 1993.

4. Bill Gates introduced the Windows NT operating system in 1993.

5. I need information quickly.

6. E-books will replace all the throwaway books we read.

7. E-books will replace all the throwaway books we read.

8. It's not cheap.

9. I like the look and the feel of books.

10. I don't like reading off a computer screen.