3. Read, translate and define what parts of speech the words, their derivatives and related words belong to. Memorize the meanings that are new for you.

absorb – absorbability – absorbable – absorbance – absorbancy – absorbate – absorbed– absorbency– absorbent – absorber – absorbing – absorptance – absorption; isomer – isomeric – isomerism – isomerizate – isomerization –isomerize – isomerized – isomerizing – isomerous – isomery; pollutant – pollute – polluted – polluter – polluting – pollution – pollutional; polymerism – polymerizable – polymerizate –polymerization–polymerize–polymerized– polymerizer– polymerizing; precipitability – precipitable –precipitant – precipitate – precipitated – precipitating – precipitation – precipitator; preparation – preparative – preparatory – prepare – prepared – preparedly – preparedness; unification – unificatory – unified – unifier – unify.

4. Find the pairs of synonyms in the list given below.

additional; also; alteration; assay; as well as; auxiliary; combining; contamination; decomposition;

differing; distillation; dividing; extraction; flare; flash; fractionation; further; generation;

include; incorporate; integrated; maintenance; pollution; production; provide; rearranging; recovery;

release; relief; sample; service, support; subsequently; supply; unification; unified; varying.

5. Translate the following sentences paying attention to the forms of the word separate and their pronunciation: separate (verb) – ['sep(ə)reɪt]; separate (adj.), separately(adv.) – ['sep(ə)rət], ['sep(ə)rətlɪ]. State what part of speech it represents in each sentence.

1. In continuous distillation, a mixture is supplied into the process and separated fractions are removed as output streams as time passes during the operation. Each stream is taken simultaneously (одновременно) throughout operation; therefore, a separate leave point (точка выхода) is needed for each fraction.

2. Once separated and purified of any contaminants and impurities, the fuel or lubricant can be sold without any further processing.

3. These fractions include at least (по крайней мере) one volatile (летучий) distillate fraction, which has boiled and been separately captured as a vapor condensed to a liquid, and practically always a bottoms fraction, which is the least volatile residue that has not been separately captured as a condensed vapor.

4. This gas can exist separate from the crude oil in the underground formation, or dissolved in the crude oil.

6. Translate the following sentences paying attention to the different meanings of the word involve (вовлекать, касаться, затрагивать):

1. to be involved in – быть вовлеченным, участвовать;

2. be + adjective (too, very, rather, fairly, etc.) + involved – быть сложным;

3. involving – с, из, для; not involving – без.

1. Leaks, or releases involving hydrofluoric (фтористоводородный) acid or hydrocarbons containing hydrofluoric acid are extremely (крайне) hazardous.

2. Rice and Herzfeld (1934) showed how the results obtained in the study of the thermal decompositions of hydrocarbons and other simple molecules could be explained in terms of chain mechanism involving free radicals.

3. The calculation of the correlation (взаимосвязь) of the noise coefficients is now a great deal more involved.

4. The flow diagram (блок-схема; структурная схема) below depicts the equipment and the flow paths involved in the process.

5. The integrated design involved the use of auxiliary equipment.

6. These processes are involved in forming the aromatic products that result when heavier feedstocks are used.