Clil Module Periodic Table Of The Elements Worksheet - Prof.ssa Elena Tibaldi - Istituto Sant''Anna - 2012-2013 Page 38
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48WORKING ON LANGUAGE: MAKING COMPARISONS (1)
GRAMMAR REVIEW:
For long adjectives
More ....... than / less...... than / as ...... as
For short adjectives
add suffix –er Ex. harder, cleaner
EXERCISE 1.
Fill the empty spaces by inserting the correct form of the comparatives of
the adjectives in parenthesis.
1) Transition elements have (high) .......................
densities than group I and group II
metals.
2) Transition elements are (hard)............................ and (strong) ...............................than group
I and group II metals.
3) Transition elements are (reactive) .............................................. than group I and group II
metals because it is (difficult) ...................................................................... to lose electrons.
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