Волокна и ткани в текстильной промышленности. Биева Е.Г. - 16 стр.

     b) This is a laboratory where the students are making their experiments.
      c) Our students have made many experiments.


V. Заполните пропуски, выбрав нужную форму сказуемого.

   1. Many new school … in our city (will build, will be built). 2. The students … the results of
   the experiment (have analyzed, are analyzed).3 We came into the laboratory when the
   experiment … (was being conducted; is conducting) . 4. A new instrument … by the group
   of the engineers (has developed, has been developed). 5. The scientist … an important
   article (wrote; is written). 6. My friend … me (helps, is helped). 7. The students … by the
   professor (were addressed; addressed). 8. At the station they will (meet, be met) by a man
   from the travel bureau. 9. She will (meet, be met) them in the hall upstairs. 10. You may
   (leave, be left) your hat and coat in the cloak-room downstairs.


                                ВРЕМЕНА СТРАДАТЕЛЬНОГО ЗАЛОГА

                               PASSIVE VOICE ( BE + PARTICIPLE II )


                     PRESENT               PAST                   FUTURE

Indefinite           am                    was                    shall
                     is     written                written                be written
                     are                   were                   will

Continuous           am                    was
                     is being written             being written
                     are                   were

Perfect              have                  had been written       shall
                            been written                             have been written
                     has                                          will



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                             FLAX, ITS PROPERTIES AND USE.

       Flax was probably the first vegetable fibre to be used* by man for making textiles.
Specimens of flax have been found in the pre-historic lake dwellings of Switzerland, and in the
tombs of ancient Egypt.
       Flax fibre comes from the stem of an annual plant, which grows in many temperate and
sub-tropical regions of the world. In the bark of this plant there are long, slender, thick-walled
cells of which the fibre strands are composed.
       Today the flax plant is grown for its fibre mainly in Europe, including Russia. As a
source of lin-seed oil the flax plant is grown extensively in Canada, the USA and Argentine, but
the output of fibre from these countries is relatively insignificant.