UNIT - COMPUTERS

UNIT - COMPUTERS
l. Complete each sentence with the suitable word in the box.
monitor - computers - treshman - knob - guarantee - printer
skeptical - library - bulletin board - technology - time-consuming
1. A ...................is a machine for printing text onto paper.
2. This machine is still under so the manufacturer will repair it.
3. Some............ can work 50.000 times faster than a man.
4. Some of the more .........jobs can be clone by machines.
5. Adjust the if the screen of the …………………… is too dark.
6. Harry is in the first year at university. He is a .................
7. They post ntessages on the......... and find other people
who want to talk about the same topic.
8. I'm rather ........................about his chances of winning.
9. Many students are sitting and reading hooks and imtgazines in the
10.This ................enables computers to read handwriting.
II. Write sentences, using the present perfect with already and yet.
Ex: I/ buy/ a jacket. => I have already bought a jacket.
He/ not finish/ his project.
=> He hasn’t finished his project yet.
1. David/ leave/ the party.
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2. I/ not receive/ his letter.
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3. The manager/ come/ the office?
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4. We/ see/ that film.
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5. Laura/ not find/ a job.
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6. It/ stop/ raining?
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7. He/ drink/ three bottles of beer.
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8. We/ not hear/ anything from them.
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9. you/ post/ the letter?
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10. They/ go/ to Brazil.
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III. Complete the dialogues, using the present perfect of the verbs in brackets.


1. A: Would you like something to eat?
B: No, thanks. I have just had lunch. (just/ have)
2. A. Do you know where Julia is?
B: Yes, I ............................... her in the street. (just/ meet)
3. A - What time is he going?
B - He ............................................................. (already/ go)
4. A - What is in the newspaper today?
B - I don’t know. I....................................... (not/ read/ yet)
5. A - Is Ann coming to the movie theater with us?
B- No, she ......................................that film. (already/ see)
6. A - Are your friends here yet?
B - Yes, they ....................................................(just/ arrive)
7. A - What does Tim think about your plan?
B – I ............................................................. (not/ tell/ yet)
8. A - Shall I phone to reserve a table‘?
B – I............................................................ it. (already/ do)
IV. Complete the dialogues. Use the past simple or present perfect tense of the verbs in
brackets.
1. A: I ................................( you/ ever/ connect) a printer?

B : l (know) how to connect it since I ………………..(be) twelve.
2. A: Ben ......................................................(break) his leg.
B: Really? How ...........................................(that/ happen)?
A: He....................................................... (fall) off a ladder.
3. A: Ow! I..................................................... (burn) myself.
B: How ........................................................(you/ do) that?
A: I .......................................................(pick) up a hot dish.
4. A: Mark .......................................(not be) here recently.
B: Really? When................................................... (he/ go)?
A: He .................................(leave) here three months ago,
5. A: Do you have Ann‘s address?
B: Well, she (give) me her address but I'm afraid l (lose)………it.
6. A: ...............................(you/ hear) anything from Jane‘?
B: No. We .............(not/ receive) any letter from her since
she (...............................................leave) four months ago.
7. A: ..........................(you/ see) the film Harry Potter yet?
B: Yes, I..................................................... (already/ see) it.
A: When .........................................................(you/ see) it?
B: I......................................................... (see) it last month.
V. Which is correct?
1. Alexander Graham Bell invented/ has invented the telephone.


2. This is the first time I saw/ l have seen a cricket match.
3. I just bought/ I’ve just bought a new computer. Do you want to see it?
4. Did you read/ Have you read any of Jack Londons novels?
5. I’m looking for Tommy. Did you see/ Have you seen him?
6. We didn’t see/ haven’t seen each other for ages.
7. Jenny left/ has left school in 1998.
8. We didn’t go/ haven’t gone to a concert since 1998.

9. He wasn’t/ hasn’t been at work yesterday.
10. Where were you/ have you been born?
11. My mother grew/ has grown up in Scotland.
12.I’ve writen/ I wrote the letter, but I haven’t finished/ didn’t finish it yet.
13. Do you know about Susan? She left/ has left her home for ten years.
14. It isn’t a very good party. Most people already went/ have already gone home.
15.Christmas was the last time we had/ have had a party.
VI. Fill in each blank with an appropriate preposition.
1. Nam turned................ his computer, but it didn’t work.
2. I disagree ..........you. I think computers are very useful.
3. I’m having problems .................................my computer.
4. If your computer doesn’t work, you should check if the plug has come
............................................................................the socket.
5. All the information students need is now stored ..... the
university‘s computers.
6. Not all people think positively about the new method of study
campus.
7. The new university is different.....................the old one.
8. Computers are necessary....................firs-year student.
UNIT 16: INVETNTIONS
I - Change the sentences into passive voice.
1. Alexander Bain invented the facsimile in 1843.
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2. They dry the beans in the sun.
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3. People can make payment at any post office.
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4. How do people learn English?
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5. They are going to build a new supermarket next year.

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6. Where did you take these photograghs?
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7. The foreman is showing the students around the factory.


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8. I will translate the instructions into French.
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9. Has the council postponed the meeting?
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10. They were cleaning the room when I arrived.
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11.We haven’t finished our homework yet.
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12. People say the computer is one of the most important inventions.
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II. Active or passive? Put the verbs into the correct form.
1. There is somebody walking behind us. I think we (follow).
2. Every time I print a document, the printer (break)down.
3. Apples ...........................(say) to be good for our health.
4. Hoa (bear) in Hue but she …………………(grow) up inHa Noi.
5. “Is Thanh’s house still for sale?” “No, it (sell) since last month.”
6. The application form should .......(send) today so that it
...........................................................(arrive) the next day.
7. How …....cakes………….. (make)? ………..you …….….(ever/make) cakes?
8. I (see) an accident last night. Somebody…………….. (call) an
ambulance but nobody (injure) so the ambulance………………..
(not/ need).
9. “Who (invent) the microphone?” “It …………………….(invent)

by D.E. Hughes in 1878."
10. The printer (break) down yesterday, but now it's OK. It
...........(work) again; it …………………………………………(repair).
III. Underline the correct preposition.
1. A Chinese official made paper of/ in/ from/ on wood pulp in 105.
2. The first papermaking machine was invented at/ in/ on/ from the late
1700s from / of/ by/ to a Frenchman.
3. The factory foreman is showing them round / to/ in/ into the factory.
4. “What is this button in/ beside/ like/ for?” “ It’s used to operate the machine.”
5. “Who(m) was the helicopter invented for/ of/ from/ by?” “Igor Sikorsky”
6. Don't go away. Come and stand besides/ inside/ beside/ next to me.
7. Cocoa butter is added, along to/ of/ with/ in sugar, vanilla and milk.
8. Pour a little milk in/ from/ out/ into my cup of coffee, please.
V. Write questions for the underlined words.
1. Penicillin was discovered by Sir Alexander Fleming.


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2. The first postage stamps were made in 1840.
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3. A new road will be built across the International Park next month.
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4. The fruit harvest is fermented for three to nine days.
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5. Paper is made from wood pulp.
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6. The Pasteur Institute was founded in Paris in 1888.
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7. Sandra has just been sent a lot of information about the meeting.
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8. She was taken to the hospital by an ambulance.
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