About the main pump, double stage centrifugal pump, the fracture of pump shaft (about the ship's main engine)
2, select the argument. The argument can fully prove the function of the argument, and the choice of the argument should follow two principles: first, true, and no false; secondly, it is typical and persuasive, so as to play a greater role.3. Organize the argumentation structure. The most commonly used structure is "putting questions" (Introduction) - analyzing problems (theories) - solving problems (conclusions)".
1, determine the argument. According to the material provided by the proposition, many views can be extracted from different angles, but the article in 600 words can not be exhaustive. Therefore, be sure to choose an argument and argue adequately.
Lead thought: This is a composition for materials. Although this topic has stipulated the composition topic, but still has left the very big space for the student thought, looked from the writing style, writes the argumentative writing is the best choice. Students can talk about their own views from the view of right and wrong, attitudes towards life and spirit of scholarly research, and expound their own views and opinions. To write a good essay, we must do the following three points:
