Wednesday 10 February 2016

Metaphorical Material Clause


Human energy consumption 
has been rising 
for decades
Actor/Medium
Process: material
Extent: duration


viewed from roundabout:

(i) what has human energy consumption been doing for decades?

(ii) unmarked present tense is present-in-present: human energy consumption is rising

cf

Humans
have been consuming
ever more energy
for decades
Actor/Agent
Process: material
Goal/Medium
Extent: duration

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