【成才之路】2014-2015学年高中英语（人教版十二省区，必修1）教学课件（课前新知预习+课堂要点探究+课堂达标验收）教学课件：unit4.ppt

成才之路·英语;Earthquakes;话题导入;(2013·黑龙江齐齐哈尔中考真题) A lot of earthquakes happen in the world every year. Why do earthquakes happen? Scientists tell us the outside of the earth is made of a number of different plates (板块). The plates move very slowly. Sometimes they stop and dont move for a long time. When some of the earths plates move suddenly, an earthquake happens. Many earthquakes happen under the sea. Sometimes they happen near mountains. In fact, earthquakes may happen anywhere on the earth.;During an earthquake, the shakings make rocks rise suddenly and even break open. Houses fall. People are killed or hurt. Sometimes whole villages or cities are destroyed. Can we do something to keep ourselves safe from earthquakes? Scientists have studied earthquakes and made maps that show“earthquake belts”. In the areas in these belts, its possible for earthquakes to happen. In these areas we can make houses strong enough to stand against earthquakes. ;In the future, scientists will be able to predict (预言) exactly when and where an earthquake will happen. They can tell us what to do and how to do it as well.;判断正误(True or False) 文章大意：本文是一篇说明文，主要介绍地震形成的原因以及造成的危害，并且在将来科学家们能够精确地预言地震在何时何地发生，告诫人们做什么，如何做。 (　　)1.Few earthquakes happen in the world every year. 答案：F　细节理解题，该题的题干中有一关键词“few”意为 “没有一些”，通过文章第一句话“A lot of earthquakes happen in the world every year.”就可以看出本题是错误的。;(　　)2.The outside of the earth is made of a number of different plates. 答案：T　细节理解题。由文章的第一自然段“Scientists tell us the outside of the earth is made of a number of different plates (板块)”．可以看出，这句话是正确的。;(　　)3.We can do nothing to keep ourselves safe from earthquakes. 答案：F　细节理解题。由文章第四自然段，最后一句In these areas we can make houses strong enough to stand against earthquakes.可以看出，我们能够做一些事情降低地震的破坏程度。故此题错误。 ; (　　)4.A map showing the earthquake belts tells people what kind of houses can stand in an earthquake. 答案：F　细节理解题。由文章第四自然段可知，科学家画出地震带的目???是将地震带上的房子建地足够牢固可以降低地震的破坏程度，而不是哪种房子可以在地震中不倒。所以这句话是错误的。; (　　)5.In the future, scientists can