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Iron rod subsequent heating, temporary alteration reversed

Ex. 3. Read the following words, mind the stresses:

[ri:'SkbntU]ent rSAbSlkWantJ; process I'prousesJ; reactant

Model I: The question involved is to be solved today.

  1. Вопрос, о котором идет речь, должен быть решен сегодня.

  2. Данный вопрос должен быть решен се­годня.

1. The elements involved varied in their properties greatly.

  1. The rate of the reaction depends on the nature of the sub­stance involved. 3. The acid involved acted as a catalyst. 4. The importance of the technique involved was evident to everyone.

Model II: The discovery followed by many experiments resulted in new investigations in chemistry. Открытие, за которым последовало много опытов, привело к новым исследованиям в области химии.

1. The lecture followed by practical hours took place in our club. 2. These rays uninfluenced by the magnetic field were examined by our workers. 3. The substance affected by a magnetic field must be a metal. 4. The analysis followed by an examination gave unexpected results.

Model Ш; When (if) heated, water turns into a steam.

При нагревании (когда воду нагревают) вода превращается в пар.

1. When asked about this work, he couldn't answer any­thing. 2. If carried out carefully, the experiment can give re­liable data. 3. When shown this chart, pay attention to the figures.

Ex. 5. State the sentences where the verb form with the suffix “-ed” is Participle П:

1. A piece of iron placed in a container with an acid can diminish in mass. 2. They placed the iron rod in a container with water. 3. Carbon uncombined is a solid. 4. Some ele­ments combined resulted in new elements. 5. They combined some obtained data, 6. They produced good products. 7. The products produced were good.

Ex. в. Translate the following parts of the sentences:

1. When heated sufficiently, ... 2. If cooled to 20°C, . . . 3. Translated into Russian ... 4. The question in­volved ... 5. When removed, ... 6. If examined under the microscope, ... 7. Produced at the plant ... 8. When pro-

d“ced at the plant, ... 9. If hold in the hand, ... 10. When changed greatly, ...

Ex. 7. Translate the sentences paying attention to the translation of “no” before the noun:

1. No change took place in the solution in the air. 2. No solution could be formed in such conditions. 3. No tempera­ture change was observed in the sample used. 4. No oxida­tion of any substance takes place without the reduction of some other substance. 5. No material is perfectly elastic even at a very low stress. 6. When liquid water becomes Tee or steam, there is no change in the chemical nature of the sub­stance. 7. No animal can live without oxygen. 8. No signif­icant relationship in the properties of solutions can be no­ticed.

Ex. 8. Translate the following verbs into Russian, mind the meaning of the prefix “re-”:

to gain-to regain to place —to replace to write—to rewrite to examine —to re-examine

Notes on the Text