The cell. Кулагина Ж.Д. - 19 стр.

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    interwind [intə'waind]                     ionize ['aiənaiz]
    accretion [ə'kri:ʃən]                      prophase ['prouƒeiz ]
    mitosis [mi'tousis]                        tumour ['tju:mə]

      Ex. 3. Give infinitives of these irregular verbs:

      lost, meant, cut, made, begun, split.

       Ex. 4. Translate the words below into Russian paying attention to the
affixes.

       to divide (v), division (n); to treat (v), treatment (n); to arrange (v),
arrangement (n); to approximate (v), approximately (adj); to extend (v),
extention (n); to occur (v), occurrence (n); to thicken (v), thick (adj); to multiply
(v), multiplication (n); to relate (v), relation (n), relationship (n); to define (v),
definite (adj); duration (n), during (prep); frequency (n), frequent (adj); radiation
(n), radiant (adj).

      Ex. 5. Translate the words paying attention to the prefixes.

      а) negative prefixes:
      un – to coil – to uncoil; usual – unusual; ripе – unripe
      im-permeable – impermeable, possible – impossible
      dis – to appear – to disappear, to integrate – to disintegrate, to close – to
      disclose, similar – dissimilar.
      б) The prefix "re" corresponds to the Russian prefix "пере" or such
Russian words as "снова", "заново", "вновь":
      to construct – to reconstruct, to appear - to reappear, to place – to replace,
to write – to rewrite, to use – to reuse, to read – to reread, to generate – to
regenerate.

      Ex. 6. Using the suffix "tion", form nouns from the following verbs:

      Model: add – addition

       to compose, to communicate, to digest, to direct, to demonstrate, to
distribute, to deviate, to form, to investigate, to migrate, to organise, to observe,
to protect, to prepare, to reproduce, to regenerate, to specialise.