人教版选修六unit5thepowerofnature全程课件Learningaboutlanguage.ppt

;Unit 5 The power of nature Learning about language; Discovering useful words and expressions 1 Replace the underlined parts with a word or phrase of similar meaning from the text. Rewrite the sentence if necessary. ;2. The car drew up next to the side of our car and the driver waved to us. 3. The scientists were studying carefully to see how successful the experiment is. ;4. I moved carefully over the fallen rocks and returned to the car. 5. I think the boy is likely to achieve success in painting, but he needs training. 6. The teacher was given the job because he was the best candidate. ;7. It is certain that the factory will greatly raise their efficiency if they have modern machines and tools. 8. Charles looked at the drawing that shows how the machine works and knew immediately what was wrong with it. ;2 Complete the paragraph with the words in the box in the correct forms. burn to the ground absolute volcano eruption wave fountain ash lava erupt ;The eruption of Mount Vesuvius in 79 AD took the people of Pompeii by surprise. They had always known that the mountain was a _______ but it had been quiet for so long that nobody saw it as a threat. When the volcano finally did _____, ;it was so quick and so severe that the town was soon covered in ____ and ____. A writer called Pliny, who was there during the ________, described how lava was thrown into the air like a ________. After it fell to earth, it turned into _____ of lava which travelled down the mountain ;faster than people could run away. It was an _______ disaster for those who could not escape in time. Many of the wooden houses and bungalows in Pompeii were ____________________, but the stone houses remained under the ash until they were rediscovered during the 20th century.;Revising the –ing form;本课时重、难点;说出下列动词的现在分词形式： Work ______ sleep _____ study _____ take ______ make _____ dance _____ cut ______