Five-Minute Tests

Complete this text using the words.

economics	economic x (2)
economists	economy

So what do (1)_________ do? Mainly, they do three things: collect data, create (2)___________ models and formulate theories. Data collection can include facts and figures about almost anything, from birth rates to coffee production. (3)_________ models show relationships between these different data. For example, the relationship between the money people earn and unemployment. From this information, (4)__________ try to make theories which explain why the (5)__________ works the way it does.

Key: 1. economics; 2. economic; 3. Economic; 4. economists; 5. economy

Read the text below and think of a word which best fits each space. Use only one word in each space.

THE GREENHOUSE EFFECT

The greenhouse effect is very important; if it (1)________ occur at all, the temperature of the planet (2)_________ be 40 degrees lower and the oceans (3)__________ freeze. But an increase in the greenhouse effect may lead to global warming (4)_________ disastrous consequences.
The higher average temperatures produced by global warming could cause dramatic changes in the weather. Less rain might (5)_____ over large land masses. Central Africa, south Asia and some parts of the United States could risk severe drought and famine. More rain might fall in coastal areas and over the oceans, there might be more storms and hurricanes in the Pacific. A rise in the earth’s average temperature (6)_______ only one or two degrees would probably melt the polar ice caps and raise sea levels. Sea (7)_______ throughout the world are already rising (8)_______ about two millimetres a year. If (9)________ polar ice caps melt, sea levels could rise by more (10)________ a meter over a few decades.

Key: 1. didn’t; 2. would; 3. would; 4. with; 5. fall; 6. of; 7. levels; 8. by; 9. the; 10. than

Are these sentences right or wrong? Correct the ones which are wrong.

1. Tom didn’t have any problem at school so far.
____________________________
____________________________
2. How long are you making films?
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____________________________
3. Has it stopped raining yet?
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____________________________
4. A lot of new professions appeared since the arrival computers.
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5. I haven’t been learning English since I left school.
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____________________________

Key: 1. hasn’t had; 2. have you been making; 3. correct; 4. have appeared; 5. correct

to be continued