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1. Metal, until, uranium, fuel, the, now, of, reactor, nearly, constructed, has been, every.
2. Reactive, is, uranium, structure, a, metal, complex, of.
3. Production, the, nuclear, fuel, for, power, able, be, to withstand, must, doses, neutron, higher, much, for, power.
4. Sheathing, the new, materials, types of, a, wide, need, reactor, variety, of, at, high, operating, ratings.
5. Diffraction, nuclear, has produced, metallurgical, energy, a new, work, in the form, tool, of, neutron, for.
6. In the following sentences replace can (could) with to be able form.
1. Metallurgists can meet many problems connected with the peculiar behavior of metallic nuclear fuels.
2. American reactors could produce plutonium for military purposes.
3. Metallurgists can investigate alloy structure and mechanical and physical characteristics.
4. Nuclear energy could produce a new tool for metallurgical work in the form of neutron diffraction.
5. A metallurgist could solve the problem of corrosion.
6. Turn the following sentences a) into Past Simple Tense b) into the Future Simple Tense. Add necessary “time” expressions.
1. Many of the problems with which metallurgists have to meet in the development of nuclear energy are connected with the peculiar behaviour of metallic nuclear fuels.
2. Metallurgists can produce suitably protected metal.
3. Unalloyed uranium cannot be quite satisfactory for such reactors.
4. The nuclear fuel must withstand high neutron doses.
5. Scientists can investigate and physical characteristics in relation to irradiation behavior.
6. In this case the problem of corrosion has to be solved.
7. Metallurgists can have a variety of sheathing materials for new types of reactor operating.
7. Answer the following questions:
1. What are the characteristics of uranium?
2. What are the problems with which metallurgists have to meet in the development of nuclear energy connected with?
3. What was the metallurgist’s problem in the early years?
4. What must the nuclear fuel contain for power production?
5. What do the new types of reactor operating have?
6. What tool has nuclear energy produced?
UNIT 2
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