The cell. Кулагина Ж.Д. - 33 стр.

                                           33
определенном соотношении (= взаимодействии). 5. Нервные клетки
образуются только в период эмбрионального развития.




                                       Unit VI
                                        Step 1
         Ex. 1. Practise the following for pronunciation:

     actually ['æktʃuzəli]                           hamster ['hæmstə]
     amphibian [æm'fibiən]                           hedgehog ['heʤ(h)əg]
     calorie ['kæləri]                               indispensable [indis'pensəbl]
     calorific ['kælərifik]                          marmot ['mα:mət]
     carbohydrate ['kα:bo(u)'haidr(e)it]             potential [pə'tenʃəl]
     derive [di'raiv]                                purpose ['pə:pəs]
     dialectical [daiə'lektikəl]                     quiescence [kwai'esns]
     double ['dʌbl]                                  reptile [reptail]

         Ex. 2. Supply three forms of the following irregular verbs.

Lead, break, build, sleep, fall, derive.

         Ex. 3. Using the suffixes given below form nouns from the following
verbs:

    a) ment – to move, to develop, to require, to replace, to engage;
    b) ance – to appear, to enter, to perform, to acquaint, to resemble;
    c) ence – to differ;
    d) tion – to collect, to contract, to digest, to inhibit, to liberate, to
coordinate, to hibernate, to assimilate, to contribute, to construct;
    e) ation – to organize, to utilize, to observe, to specialize, to inform;
    f) ition – to compose, to decompose, to add, to vary;
                 – to oxidize (oxid + a + tion);
                 – to evolve (evol + u + tion);
                 – to absorb (absor + p + tion), to adsorb, to consume.

     Ex. 4. Give Russian equivalents for the following words and word
combinations.