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3.8 Summarize the information on different high-level computer languages by completing the table below.

Language

Date of development

Purpose

Characteristic

1959

Mathematical and

scientific

Combines features

of COBOL and ALGOL

BASIC

To support Unix

operating system

1962

3.9 Choose the proper word to fill in the gap. Change its form if necessary.

Instruction, instruct, instructed, instructor

a) Our math’s _______ explained to us the principles of binary arithmetic.

b) We were _______ to document our programs very carefully.

c) Both ______ and data have to be changed to machine code before the computer can operate on them.

compilation, compiler, compile, compiled

a) Our university computer does not have a PASKAL________.

b) Usually, a programmer _________ his program before he puts in the data.

c) A source program cannot be directly processed by the computer until it has been ____.

result, results, resulting

a) The linkage editor links systems routines to object module. The _______ program, referred to as the load module, is directly executed by the computer.

b) The _________ of these mathematical operations were obtained from the university mainframe and not from my micro.

3.10 Look at the words in bold type in Text a. Can you give your comments from the grammar perspective?

Do you know that…?

The –ing form (present participle) can be used to form adjective from verbs; it then describes the person or thing ‘who/that does the action of the verb’ (active): e.g. ‘This story excites people’ can become ‘This is an exciting story’.

The –ed form* (past participle) can also be used as an adjective; it then describes the person or thing ‘to whom/which the action of the verb is done’ (passive): e.g. we can say, ‘The play in this theatre is exciting the children’ and ‘there are a lot of excited children in this theatre’.

*Do not forget that irregular verbs have specific forms of Past Participle.

Write these sentences, changing the verbs in brackets into the present or past participle.

  1. My sister is (interest) in exotic flowers, and she has some (interest) ones in her garden.

  2. Her friend felt (relax) because he had a (relax) weekend.

  3. Her computer skills were quite (astonish). (Astonish) students used to watch her easily writing complicated programs.

  4. One very windy night Sarah heard the sound of (break)glass upstairs, and when she went to look , she found a (break) window.

  5. John was very (tire) because it was (tire) having so many lessons yesterday.

  6. The tourist agency made a (surprise) suggestion. Mary was quite (surprise) to hear it.

  7. The movie was quite (depress) so she felt (depress).

  8. He was (bore). He listened to very (bore) lecture.

Now give your own examples.

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