必修4Unit2WarmingupandReading.ppt

BOOK4 Unit 2 Working the land The Peasant’s lot Farmers weeding at noon, Sweat down the field soon. Who knows food on a tray, Due to their toiling day. What crops are planted in the farm land? wheat sorghum rice corn potatoes main food Brainstorming What will you think of when you see the word “farming”? farming irrigating (灌溉) ploughing sowing weather climate crops rice transplanting (插秧) fertilizer Have you ever grow any plant? Do you know how to grow a plant? First we ploughed the soil deep. Second we put the seeds into the soil. Finally we should turn over the soil by ploughing again. The farmers plow the field. They have to make the soil loose enough to plant crops. ploughing（犁田） ploughing（犁田） seeding （播种） fertilizing (施肥) irrigating (灌溉) transplanting （插秧） harvesting （收割） winnowing ( 扬 谷 ) select the seeds plough the field turn over the soil sow the seeds remove the weeds fertilize farming steps Pre-reading What is the main food in all East Asian and Southeast Asian countries? Rice. It is said that there are 2.4 billion people to eat rice every day throughout the world. so large a population 22％ of the world people are fed from just 7%of the farmland in china. Rice is our main food. What do you think will happen if tomorrow there is suddenly no rice to eat? If that happened, people might die of hunger. The whole world would get into trouble. Drought: a disturbing problem No crop No output The only way to solve the food shortage problem is to increase the produce of the grain crop per land area through the advancement of science and technology. A Chinese scientist declared to the world that China can solve the problem by itself and help to solve the same problem in the world. Father of Hybrid Rice Super Hybrid Rice the rice that has a high output Yuan Longping is doing his research. Yuan Longping is working the land. Task 1 Skimming Find out the main idea of each paragraph.