ГРАММАТИКА: Придаточное предложение в функции подлежащего.
Scction I
Ex. 1. Practise your pronunciation.
a) iodine faiodirn], equilibrium [ ,i:kwi'libnom], fluidity [flu'iditi], viewpoint fvjurpoint], process fprouses], agitate [xd3iteit], vigorously ['vigorosh], agitation [,a*)f teijon], thermal ['0з:тэ1], finally [Tainoli], cause (ko:z], relative ['relotiv], regular ['regjolo], arrangement [o'reindsmont], instead [m'stcd], regularity [.regju'laeriti]
b) 'liquidiodine, andjhcMiquid, arcJn^equiNlibrium, thcu'naturc of^a liquid, tow'stayu'closejogether, thc^'grouping^of molccules
c) 'As a 'crystal is/heated. | its 'molecules are increasingly agitatcd.
Ex. 2. Pay attention to the structure of the following words. Translate them into Russian:
a) somebody, someone, something, somewhere, somehow, somewhat, sometime, sometimes
b) important, pleasant, abundant, resistant, brilliant, disinfectant, lubricant, significant
c) freedom, kingdom, wisdom
Ex. 3. Define the meanings of the word point in the following sentences:
1. Point A on the graph corresponds to the boiling point of a solution. 2. The reaction goes to completion when the temperature is kept in the range of25-30°C, this is a particularly important point. 3. At this point he stopped for a minute and then continued his explanation. 4. There arc different points of view concerning the hypothesis. 5. The mclting/юш/ of crystalline iodine is 114°C. 6. The proccss of melting can be described from the molecular viewpoint. 7. Up to this point everything was all right, but then something happened and the process became unstable. 8. It must be pointed out that only a crystal is characterized by regular arrangement of atoms and molecules. 9. It is a very interesting point, we shall discuss it later.
Ex. 4. Find the predicate and the subject in the following sentences:
1. That the properties of liquid iodine and solid iodine arc different is quite obvious. 2. That the density of a liquid is less than that of a corresponding crystal can be easily explained. 3. How wc arc to make measurements will be clear from die instruction. 4. Whether high pressure is ncccssary is to be known from the article.