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Unit 12

Reading and Use of English
1BSU

1 Make as many words as you can from the
‘root’ words in the box.

able friend help know live move
able
nation sense

Example
able: ability, inability, disability, enable, disable, unable,
disabled, ably

2 Each of these sentences contain at least
one word with an incorrect suffi x or
prefix. Correct the mistakes.

Some people fi nd it inpossible to sleep if
they drink coffee late at night.
Species loss accelerating
Demonstraters are trying to unstabilise the
government’s environmental policies. An international report has shown that human
I’ve got terrible backache – that chair was (0) activities are destroying three animal or plant ACT

so discomfortable. species every hour. This equals 150 species a day,
Be caring with that parcel – the present and between 18,000 and 55,000 species a year. Th e
inside is breakible. main (1) of the report is that we FIND
Poor service in the restaurant was the main must slow down the worst spate of extinctions since
cause of our unsatisfaction. the (2) of the dinosaurs 65 million APPEAR
Paul’s such a creative person – he’s always years ago.
full of innovatant ideas.
have identifi ed ENVIRONMENT
Stop trying to mistract me. Can’t you see Scientists and (3)
various threats to (4) and plants as CREATE
I’m busy?
diverse as right whales, Iberian lynxes, wild potatoes
It’s not that I disbelieve you, but I hope
and peanuts. Global warming is adding to existing
you know what you’re doing – not all
for farms CLEAR
mushrooms are edable. threats such as land (5)
or cities, pollution, and rising human populations. To
3 Read the text Species loss accelerating. deal with these challenges, we need to move rapidly,
For questions 1–8, use the word given in and with more (6) at all levels – DETERMINE
capitals at the end of some of the lines global, (7) and local. NATION
to form a word that fits in the gap in the Many experts believe that the world will fail to meet

same line. There is an example at the the target, set by political leaders some years ago, of
beginning (0).
a major (8) in the rate of loss by REDUCE
next year. Rates of species loss are currently rising
Exam advice
by more than a thousand times natural rates.
t Remember that changing the word given
could mean using a prefi x or a suffi x or
both. You may have to make a word with a 4 Discuss these questions in pairs or groups.
negative meaning. What other species of plants or animals are in danger of becoming
t Check the spelling of the words you form. extinct?
t Finally, read through the complete text What can international organisations, national governments
to make sure that it makes sense and is and individuals do to slow down the rate at which species are
grammatically correct. becoming extinct?

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