"To be" and its functions. "To have" and its functions

3. Ordinary hydrogen has a single proton in its nucleus but its heavy isotope has both a proton and a neutron, making its mass number 2 instead of 1.
4. While working to isolate Polonium, the Curies discovered a second radioactive element, calling it "radium."
5. Certain natural radioactive elements which differ greatly from one another in their radioactive properties were found to be chemically inseparable, suggesting that their external structures are identical though their nuclei differ.
6. The penetration of neutrons through the iron was found to be markedly different, depending whether the iron was magnetized or not.
7. A separate compressor must be inserted in the nuclear reactor in order to circulate the coolant gas, resulting in additional mechanical complexity and further loss of thermal efficiency.


VI. Define the function of Participle I in the following sentences and translate them:


1. The scientist working at this design is well known.
2. Carrying out the experiment he made use of some new instruments.
3. These new devices are replacing their older equivalents.
4. Speaking about the new method of work the engineer told us many interesting details.
5. Radio occupies one of the leading places among the greatest achieve­ments of modern engineering.
6. Being cooled water turns into ice.
7. The electric current passing through a wire will heat it.
8. Transistors contain no moving parts.
9. The scientist is carrying on an important research.
10. Developing the new method they achieved good results.


VII. Choose the sentences with Participle I from the ones given below, translate them:


1. The falling water has kinetic energy.
2. While testing the motor we put down the results.
3. There is no simple explanation of the func­tioning of transistors.