Перепишите предложения. Подчеркните глагольную форму на -ing. Определите, к какой части речи она относится. Переведите предложения на русский язык.

Упражнение a

1. Loading a motor always results in a reduction in speed.

2. Altering the motion of a body we increase or decrease its speed.

3. While passing through the turns of a coil, the current sets up a varying magnetic field.

4. Having lost a negative charge, the atoms become positively charged ions.

5. Tsiolkovsky's having lost his hearing as a result of scarlet fever made him leave school after the third grade.

6. Connecting condensers in series decreases the capacity of the circuit.

7. Testing the mixture the experimenter noticed a few bright crystals of a new substance.

8. Current's passing through a coil, magnetic poles are produced at each end of the coil.

Упражнение b

1. Having covered 384,000 kilometres, the Luna 16 automatic station made a soft landing on the Moon.

2. Having been subjected to all necessary tests, the machine was accepted to serial production.

3. Submitting to one wrong brings on another.

4. This procedure is finding increasing use.

5. A man should be viewed as a free, rational being possessing a free will.

6. This is not surprising in view of the fact that these compounds undergo rearrangement, giving diazoesters.

7. The system architecture consists of several layers together with corresponding compiling modules.

8. Two results obtained using the protocol showed an interesting effect worth presenting and discussing here.