IX. Translate the following sentences paying special attention to the words in bold type:
1. You are the only engineer who speaks both English and German.
2. All countries should use nuclear power for peaceful purposes only.
3. This phenomenon was studied first by Sokolov and then by Novikov.
4. Novikov's result was certainly better than that of his comrade.
5. Galileo constructed an air thermometer, some years later a French scientist constructed another one, in which water was used instead of air.
6. Both Lomonosov and Rihman studied atmospheric electricity, the latter being Lomonosov's friend.
7. There are 26 letters in the English language.
8. The last letter of the English alphabet is "z".
9. Some students work and study at the same time.
10. This engineer carried out some experiments on the properties of semiconductors.
X. Translate the following sentences paying attention to the non-finite forms of the verb:
1. For heating a body, we place it in contact with another body at a higher temperature.
2. There are two diagrams in this figure, one of them showing the temperature difference.
3. Comparing the data obtained by our tests is the only means of solving the problem in question.
4. The instrument for measuring the temperature of hot flowing metals is similar to that widely used in our laboratory.
5. The engineers carried out the experiment, looking at the scale of the thermometer from time to time.
6. Thermometers are employed for measuring temperature differences.
7. On the Centigrade scale the freezing point of water is marked 0°C, the boiling point being marked 100°C.
8. On being rubbed amber obtains the ability of attracting objects.
XI. Find the wrong statements and correct them:
1. We can do without the thermometer when we need exact data on the temperature of the body.
2. The thermometer is the very instrument for protecting buildings from thunderstorms.
3. As early as 1602 Galileo invented the Centigrade scale.
4. An air thermometer consisted of a metal bulb containing mercury and connected to a glass tube.
5. The glass tube in the air thermometer was immersed into water.
6. Water is the very liquid that is used in thermometers.
7. The Fahrenheit scale is widely employed all over the world.
8. Water temperature falls when a kettle is put on the fire.
9. Mercury is not used in thermometers at present.
XII. Answer the following questions:
1. What is this text about?
2. What do you do if you want to boil water?
3. What is the temperature of boiling water?
4. What instrument is used for measuring temperature?
5. What did Galileo invent?
6. What do you know about the air thermometer?
7. What is the difference between the Fahrenheit and the Centigrade scales?
8. What instrument measures the temperature of hot metals?
9. What is the difference between the mercury thermometer and the pyrometer? 10. What is the freezing point of water?
XIII. Speak on History of Thermometers and use the useful expressions:
- From my point of view…- с моей точки зрения
- To my way of thinking … - по моему мнению
- By the way …- кстати
- I don’t want to impose my idea, but …- не хочу навязывать свою
мысль, но …
- We might as well mention here… - мы могли бы упомянуть здесь