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UNIT 10. Pre-Text Exercises Word Building Active Vocabulary Text 10 A
PRE-TEXT EXERCISES
1. Choose the correct word to fill the gaps:
1. She left ___ the afternoon without saying good bye. a) in; b) on; c) at. 2. Monty arrived ___ a cold winter day and we were very glad to see him. a) at; b) on; c) in. 3. ___ last he remembered all the facts and wrote them down not to forget them again. a) in; b) on; c) at. 4. They went to Paris ___ train because they liked it. a) by; b) on; c) in. 5. The weather was rather warm and we decided to go ___ a walk. a) at; b) on; c) for. 6. He knew a lot of poems and liked to recite them ___ memory. a) for; b) from; c) on. 7. We didn’t know what to do ___ these circumstances and asked him for advice. a) under; b) at; c) by. 8. They always keep everything ___ secret. a) on; b) at; c) in. 7. He was going along the forest picking ___ all the mushrooms he saw. a) on; b) at; c) up. 8. Ring me ___ when you come home. I’ll be waiting for your call. a) up; b) on; c) over. 9. This face was strange ___ me and I couldn’t recall it at all. a) on; b) to; c) at. 2. Explain the meaning of the following words and phrases in English:
3. Fill in the gaps with a suitable word to complete the sentences:
1. Maxwell defines electricity as a ___ physical quantity.
2. The properties of charged bodies ___ such that the charge of one body may be equal to that of another.
3. Faraday investigated the nature of electricity and frequently used the ___ «quantity of electricity» to refer to quantities of electric charge.
4. The nucleus contains positively charged particles ___ protons and uncharged particles called neutrons.
5. Power is a basic part of nature and it is one of our ___ widely used forms of energy.
6. An electric power station uses either a turbine, engine, water wheel, or other similar machine ___ an electric generator or a device that converts mechanical or chemical energy to power.
7. Dictionaries often define electricity as «a fundamental entity ___ nature consisting of negative and positive kinds.»
8. If a charged particle moves through a constant magnetic field, its speed stays the same, but its direction is ___ changing.
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