高中英语外研社必修四 Module 4 PPT课件.pptVIP

Period 1 Module 4 Sandstorms in Asia Introduction Reading & Vocabulary Introduction-1. Vocabulary (5m) Use the words in Activity 1, Page 31 to fill the blank. This is a__________. It has______for ten hours and was very____________. The wind is________the sand high around the house. People are ________ in the sandstorm. Sometimes the sand can_____the whole building. sandstorm lasted frightening blowing frightened bury Introduction-2. Answering (5m) Answer the questions with the help from Activity 2, Page31. 1.Where do sandstorms begin? 2. What causes deserts? 3. How does the sandstorm affect different places? 4. What differences between sandstorms in different areas? Sandstorms begin in desert areas. Deserts are created by climate changes. And it is also because people cut down trees and dig up grass. Sandstorms from Asia have blown across the Pacific Ocean to America. The inland region has more sandstorms than the one near the sea. Reading & Vocabulary-1.Pre-reading (5m) Look at the photo. Answer the questions. Answers: There is a sandstorm blowing. They’ve wearing hoods, masks and glasses to protect themselves. It moves very slowly. Because it is not clear to see everything on the road and people must take great care. 4. Stay at home. Reading & Vocabulary -2.Intensive-reading(8m) read the passage , and get the main ideas of each part. Sandstorms have been a major disaster for many Asia countries for a long time. The winds in sandstorm can sometimes be strong enough to move and dunes; When Ren Jiabao was in Inner Mongolia he experience a terrible sandstorm in desert. Sandstorm in China appear to have increased in resent years as a result of “desertification” Cutting down trees and digging up grass can cause the climate to change make the land become desert. Traffic moved very slowly as the thick dust makes it difficult to see. What the government do to prevent the desert coming near. Reading & Vocabulary -3.Exercise (5m) Fin