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Unit 1. Fractals.docx
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The common prepositions in english.

about

beneath

in front of

since

above

beside

into

till

across

besides

near

through

after

between

next to

to

against

beyond

of

towards

along

down

off

under

among

by

on

underneath

around

during

onto

until

at

except

opposite

up

before

for

out of

upon

behind

from

over

with

below

in

past

without

Passive voice

The passive is formed with the appropriate form of the verb “to be” followed by the past participle form of the main verb. Only transitive verbs (verbs which take an object) can be put into the passive. Intransitive verbs, like cry, die, arrive, disappear, wait, which often describe physical behaviour, cannot be used in the passive voice.

Verb form

Construction

Present simple

am/is/are + pp

Present continuous

am/are/is being + pp

Present perfect simple

has/have been + pp

Past simple

was/were + pp

Past continuous

was/were being + pp

Past perfect simple

had been + pp

Future simple

will be + pp

Future perfect simple

will have been + pp

Infinitive

(to) be + pp

TENSES

ACTIVE VOICE

PASSIVE VOICE

Present Simple

Present Continuous

Past Simple

Past Continuous

Future Simple

Present Perfect

Past Perfect

Future Perfect

Present Infinitive

Perfect Infinitive

-ing form

Perfect -ing form

He gives lectures.

He is giving a lecture.

He gave a lecture.

He was giving a lecture.

He will give a lecture.

He has given a lecture.

He had given a lecture.

He will have given a lecture.

He should give a lecture.

He is going to give a lecture.

He should have given a lecture.

She remembers him giving a lecture.

Having given the lecture,...

Lectures are given.

A lecture is being given.

A lecture was given.

A lecture was being given.

A lecture will be given.

A lecture has been given.

A lecture had been given.

A lecture will have been given.

A lecture should be given.

A lecture is going to be given.

A lecture should have been given.

She remembers a lecture being given.

The lecture having been given,...

• Get is used in colloquial English instead of be to express something happening by accident.

She'll get killed if she goes on driving like that.

THE PASSIVE IS USED

• when the person who performs the action (agent) is unknown, unimportant or obvious from the context

It is significant to understand that this formula could not have been discovered without computers. (unimportant agent)

• to emphasise the agent

Her wedding dress was delivered to her by the dressmaker herself yesterday.

• to make statements more formal or polite

My dress has been ruined. (more polite than saying ‘You have ruined my dress’.)

• when we are more interested in the action than the agent, such as in news reports, formal notices, instructions, processes, headlines, advertisements etc.

Bicycle frames are made of steel or a chrome/molybdenum alloy.

CHANGING FROM ACTIVE INTO PASSIVE

• The object of the active verb becomes the subject in the passive sentence. The active verb changes into a passive form and the subject of the active verb becomes the agent, which is either introduced with "by" or is omitted.

Active Voice

Passive Voice

Subject

Verb

Object

Subject

Verb

Agent

Scientists

study

fractals.

Fractals

are studied

by scientists.

• By + agent is used to say who or what did the action. The geometry of the fourth dimension - fractal geometry - was created almost singlehandedly by Mandelbrot. With + instrument /material is used to say what the agent used or after past participles such as coloured, crammed, crowded, filled, flavoured, packed etc. She was killed with a hammer. By + agent is omitted when the agent is unknown, unimportant, obvious from the context or referred to by words such as: someone, people, I, etc. They revealed the truth. – The truth was revealed. (‘by them’ is omitted)

• Verbs which take who objects (give, offer etc) form their passive in two ways; it is more usual to start the sentence with the person object, not the thing object. They offered Ann a bunch of flowers. – Ann was offered a bunch of flowers. (more usual than: A bunch of flowers was offered to Ann.)

• Verbs followed by a preposition (accuse of, take down etc) take the preposition immediately after them when turned into the passive. She took down the minutes of the meeting. – The minutes of the meeting were taken down.

• In passive questions with who, whom or which we do not omit by. Who gave you this information? – Who were you given this information by?

• Hear, help, make, see are followed by a to-infinitive in the passive. She made me work overtime. – I was made to work overtime. Note that hear, see, watch can be followed by a present participle in the active and passive. We saw her crying. – She was seen crying.

The verbs believe, expect, feel, hope, know, report, say, think etc are used in the following passive patterns in personal and impersonal constructions.

• subject (person) + passive verb + to –inf (personal construction)

The police report that she is in France.

She is reported to be in France.

• it + passive verb + that-сlause (impersonal construction)

It is reported that she is in France.

Listening Script

UNIT 1

Some experiments have shown that looking at fractal patterns leads to the positive physiological changes in people. The experiments - which use eye-tracking equipment to examine how people look at the patterns, and quantitative electroencephalography (qEEG) and functional magnetic resonance imaging (fMRI) probing techniques to quantify the resulting brain activity - indicate that people are ‘hard-wired’ to respond to a specific form of fractal found in nature, one that reduces stress levels by up to 60%. This stress-reduction is triggered by a physiological resonance that occurs when the fractal structure of the eye matches that of the fractal image being viewed. The discovery that exposure to fractals automatically relaxes people holds crucial implications for society: the U.S. spends over $300 billion annually on stress-induced illnesses, and stress is increasingly blamed for disorders such as schizophrenia.

As society increasingly surrounds itself with urban landscapes, people risk disconnecting from this natural stress-reducer. Accordingly, researchers investigated people’s responses to paintings created by artists famous for capturing the essence of nature on their canvases. For example, the positive physiological responses of viewing Jackson Pollock’s poured paintings and Escher’s tessellations might explain their enduring popularity. The long-term goal is to collaborate with artists and architects to incorporate stress-reducing fractals into novel indoor and outdoor environments. These ‘biophilic’ fractals could be used in many applications, ranging from keeping astronauts calm on their long journeys into space to soothing anxious patients in dentist waiting rooms.

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