Префиксы отрицания dis, un-, in, im, ir: Префиксы «dis», «in», «im», «ir», «un» прибавляются к основе слова и указывают на противоположные свойства, выражают отрицание качества, действия:

advantage – disadvantage (преимущество - недостаток),

interested – disinterested (заинтересованный - незаинтересованный),

to cover - to discover (покрывать - открывать),

accuracy-inaccuracy (точность - неточность),

definitely – indefinitely (определенно - (неопределенно),

freguent – infreguent (частный - редкий),

possible – impossible (возможный - невозможный),

necessary – unnecessary (необходимый - ненужный),

relevant – irrelevant (уместный - неуместный),

to load - to unload (грузить - разгружать).

Конверсия как способ словообразования.

Oт существующего слова без изменения его звуковой или графической формы образуется новое слово, относящееся к другой части речи:

а cut - to cut,

a problem - problem (проблема - проблемный)

a result - to result (результат –иметь результатом).

Глаголы с послелогами.

В словаре сначала нужно искать основной глагол, а затем ниже его значение с послелогом:

to go (ходить) - to go on (продолжать) - to go in for (заниматься).

Task 1. Define a part of speech of the words given below according to their affixes and translate them into Russian:

1. useless, to knife, assistant, independent, completely, disconnect, available, transformation, difference, harmonize, freedom, insufficient, operator, movement, leadership, electrical, powerful, discontinue, inaccuracy, obtainable, safety, quickly, activity, entirely, misfortune, teacher, whitish, unload, spacious, disapprove, socialism, widen, indefinitely, applicable, darken, carelessness, pressure, construction, disappear, really, increasing, decompose, industrial, simplify, unnatural, performance, memorize, eventful, molecular, unusual, investment, active, to dust, dangerous, freedom, convertible, locality,

2. poetic, accordance, independent, soluble, brightness, unnecessary, reuse, foundation, partly, national, useful, atomic, advisable, happiness, achievement, tighten, artist, elementary, uneven, doubtful, inefficient, accelerate, courageous, locate, comparable, put down, unpleasant, frequency, peaceful, joyless, helper, appearance, magic, repeatedly, strengthen, travelling, creative, dishonor, widely, shopping, dictatorship, pollution, to look through, attachment, badly, beauty, constancy, reliable, pleasant, bluish, eventless, workable, electrify, accumulation.

Task 2. Translate the following words into Russian:

to act – actual, acting, action, actor, actively, activity, activated, actualize, actuality, actually, actualization;

to react – reacting, reaction, reactionary, reactance, reactive, reactor, reactivity;

long – along, alongside;

a friend - friendful, friendship, friendless, friendly;

equal - unequally, equality, equalize, to equal;

kind - kindly, kindness, unkind;

short - shorten, shortage, shortly, shorts;

to eat – eatable, uneatable, eater, eating;

to equip - reequip, equipment, equipped;

critic - to criticize, criticism, critical.