topic-purpose-central idea课件.ppt

Topic – Purpose – Central Idea;Getting Started;Choosing a topic;Determining the general purpose;Determine the specific purpose;Is the U.S. space program necessary? To persuade my audience that the U.S. space program provides many important benefits to people here on earth. Express your purpose as a statement, not as a question.;To inform my audience that yoga is extremely cool. To inform my audience how yoga can improve their health. Avoid figurative language in your purpose statement;To persuade my audience to become literacy tutors and to donate time to Habitat for Humanity. To persuade my audience to become literacy tutors/ to donate time to Habitat for Humanity. Limit your purpose statement to one distinct idea;To inform my audience about the Civil War. To inform my audience about the role of African American soldiers in the Civil War. Make sure your specific purpose is not too vague or general;Questions to ask about your specific purpose;Phrasing the Central Idea;For example: Topic: Emergencies General purpose: to inform Specific purpose: to explain the major steps in responding to an emergency. Central idea: The major steps in responding to an emergency are surveying the scene, contacting an emergency medical service, and starting CPR if needed. ;For another, Topic: Alternative-fuel vehicles General purpose: to persuade Specific purpose: to persuade my audience that the federal government should speed up efforts to develop alternative-fuel vehicles. Central idea: Developing alternative-fuel vehicles will help reduce American dependence on foreign oil and will help reduce air pollution;Guidelines for the central idea;Because college athletes in revenue- producing sports such football and basketball generate millions of dollars in revenue for their schools, the NCAA should allow such athletes to receive a $250 monthly salary as part of their scholarships.;Although fad diets produce quick weight loss, they can lead to serious health problems by