cause-and-effect-英语说明文写作中的因果关系幻灯片课件.ppt

LOGO LOGO Cause Effect Presenter: Shell Date: 1st, April Questions with why are often asked and answered. Why? Cause Effect Tell readers why something happened Tell readers the results of something Cause Effect effects Therefore so as a result, consequently accordingly because of this Thus. hence for this reason result in causes due to because of owing to as a result of on account of for on the ground of Through Because since as on the ground that Transitional Words and Phrases therefore, consequently, as a result, and for this reason 通常后面接逗号 The weather was cold; therefore, Sally closed the window. The weather was cold. Therefore, Sally put on her coat. The weather was cold. Consequently, Sally put on her scarf. A blizzard hit the town. As a result, the schools were closed. Since, because 置于表示原因的句子前，句后用逗号. Because the weather outside was cold, Sally closed the window. so 前面的句子后加逗号 The weather was warm, so Jim turned on the air conditioner. There are two ways of organizing paragraphs developed by cause and effect To state an effect and devote the rest of the paragraph to examining the causes To state a cause and then mention or predict the effects Example: what are the reasons for the increasing rate of car accidents? Example: what are the results of American population getting older? According to official statistics, more than 10,000 people in the country were killed in car accidents last year. The increasing rate of car accidents can be attributed to three general causes. Mechanical problems of cars, such as faulty brakes, bald tires, and flat tires, contribute to the high rate of car accidents. Environmental problems, such as blind corners, narrow streets, heavy fog, slippery roads cause a significant number of disasters. Such errors of human problems as excessive speed and drunken driving are considered the major factor of the fatal accidents. If drivers had been careful, many needless slaughters in car acci