Module 3 The violence of nature Period One Introduction Reading and Vocabulary 课件（外研版必修3，课标通用）.ppt

A natural disaster is defined as a natural hazard, which has a negative effect on human beings. Though some of the natural disasters are geological, many of them are due to changes in the climatic conditions. Given below are some of the very important natural disasters. Blizzard(暴风雪) A severe winter storm is known as a blizzard. Strong winds, heavy snowfall and low temperatures characterize a blizzard. A blizzard that occurred in1888 killed over 400 people in the northeastern States. This blizzard is known Great Blizzard of 1888. Flood A flood is a natural disaster as it is the death of human beings and animals.Crops are destroyed in the flood, which gradually results in increased food prices due to food shortages.In a flood situation, drinking water becomes scarce because water is polluted. ①Due to this, many diseases can spread. Fire Fire is terrible especially forest fire. Forest fire is also known as wildfire. It is a natural disaster caused by a volcanic eruption or by human carelessness. Wildfire can threaten wildlife and the human habitation close to the forest. Earthquake An earthquake occurs when the tectonic(地壳构造的) plates that form the upper crust of the earth collide or slide against each other. When the tectonic plates collide against each other, the stress is released.②It is true that animals can sense earthquakes before they occur.However, the behavior of animals cannot be used as a method to predict an occurrence of an earthquake. ①由于暴风雨所以她没有来。(due to...由于……) ②很可能他什么都已经知道了。(It ＋be＋ 形容词＋that...) 翻译佳句，放眼高考 Crops are destroyed in the flood, which gradually results in increased food prices due to food shortages. 庄稼都被洪水破坏，这也最终会因为食品短缺而导致食品价格的上涨。 Module3 The violence of nature Period One Introduction Reading and Vocabulary 课件（外研版必修3，课标通用） Ⅰ.单