Definition Of Explanation • Explanation is a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. 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. The Purpose Of Explanation • Explanation communicative purpose of the text is to explain the processes that occur in the formation or activity associated with natural phenomena, social, scientific, cultural, and others aimed at explaining. • Social Function : To explain the processes involved in theformation or working of natural or sociocultural phenomena. Generic Structure Of Explanation Text 1. A General Statement : In a general statement contains a general explanation of the phenomenon that will be discussed, this phenomenon could be the introduction or explanation. 2. A Squenced Of Explanation : A squenced of explanation contains an explanation of why the phenomenon may occur or be created. A squenced of explanation in the form of answers to the question 'why' and 'how' the author when making an Explanation text. In squenced of explanation may consist of more than one paragraph. 3. Closing : Actually closing was not listed in the generic structure of the Explanation text, but most people assume that the last paragraph of the Explanation text is closing, but it is part of squenced of explantaion that contains the final steps described in the section squenced of explanation Significant Lexicogrammatical Features • Focus on generic, non-human Participants • Use mainly of Material Processes andRelational Processes • Use mainly of Temporal and causal Circumstances and Conjunctions Language Features 1. 2. 3. 4. 5. 6. 7. 8. Using Simple Present Tense Using action verbs Using passive voice Using noun phrase Using adverbial phrase Using technical terms Using general and abstract noun Using conjunction of time and cause-effect. (because, so, this causes (cause-effect conjunction) then, next, later ( conjunction of time ). Tsunami General Statement Sequenced Explanation Closing It is a statement which says about tsunami and how it is happen. 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 ingenerating 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 damageis 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.
