All about text which explaining the processes that
occur in the formation or the activities associated with natural phenomena, the
scientific world, socio-cultural, or other purpose explained.
Ø Purposes of Explanation
Explanation text is to say 'why' and
'how' of the forming of the phenomena.
It is often found in science, geography and history text books.
Ø Social function
To
explain the process involved in the formation or working of natural or socio
cultural phenomena.
Ø
Generic structure
·
A general statement to position the reader.
·
A sequenced explanation of why or how something
occurs.
·
Closing.
Ø
Language features
*
Focus on generic, non-human participants.
* Use mainly of general and abstract nouns, action verbs, simple present tense, passive voice, conjunction of time and cause, noun phrases, complex sentences, and technical language.
* Use mainly of general and abstract nouns, action verbs, simple present tense, passive voice, conjunction of time and cause, noun phrases, complex sentences, and technical language.
Ø Example
Tsunami
The term of “tsunami” comes from the
Japanese which means harbour ("tsu") and wave ("nami"). A
tsunami is a series of waves generated when water in a lake or a sea is rapidly
displaced on a massive scale.
A tsunami can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries.
Subduction of earthquakes are particularly effective in generating tsunami, and occur where denser oceanic plates slip under continental plates.
As the displaced water mass moves under the influence of gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.
Tsunami always bring great damage. Most of the damage is caused by the huge mass of water behind the initial wave front, as the height of the sea keeps rising fast and floods powerfully into the coastal area.
A tsunami can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries.
Subduction of earthquakes are particularly effective in generating tsunami, and occur where denser oceanic plates slip under continental plates.
As the displaced water mass moves under the influence of gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.
Tsunami always bring great damage. Most of the damage is caused by the huge mass of water behind the initial wave front, as the height of the sea keeps rising fast and floods powerfully into the coastal area.
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