人教版高中英語必修4 Unit2 Warming up 精品課件

1、Unit 2Working the landWarming upEnjoy a PoemBy Li ShenFarmers weeding at noon,Sweat down the field soon.Who knows food on a tray,Due to their toiling day. What do you know about “farming”?wheat rice corn potatoes peanuttomatoesbroomcorncottonAgriculture in the pastAgriculture in the modern timesHave

2、 you ever been to the countryside? What did you see or do there?Are you from a farmers family? What do you know about farming?ploughing(犁田犁田) seeding (播種播種)fertilizing(施肥施肥)irrigating(灌溉灌溉)harvesting (收獲收獲)winnowing (揚谷揚谷)grow some young plantsinsert the young plants into the fieldHave you ever grow

3、n any plants? If so,what did you do to grow them? If not, what kind of plant would you like to trygrowing? How would you grow it?riceRead the statistics below. Did you know these facts before? What problem do they show?What is the main food in all East Asian and Southeast Asian countries?Rice. It is

4、 said that there are 2.4 billion people to eat riceevery day throughout the world. If that happened, people might die of hunger. The whole world would get into trouble.What do you think would happen if tomorrow there was suddenly no rice to eat?Hungern. 饑餓饑餓, 饑渴饑渴; 渴望渴望vi. 渴望渴望; 渴求渴求Do something to

5、help end hunger in the world!The only way to solve the food shortage problem is to increase the yield of the grain crop per land area through the advancement of science and technology. In the late 1990s, Brown, an American scholar, came up with the theory of Chinese Menace(威脅威脅), which said that in

6、the 2030s, Chinese population will add up to 1.6 billion, and had the question who would feed the large population in China as well as in the world.Just at that time, a Chinese scientist declared to the world that China can solve the problem by himself and help to solve the same problem in the world.Yuan Longping“Father of Hybrid Rice”辣椒辣椒雜交棉雜交棉雜交梨雜交梨重穗型超高產雜交稻重穗型超高產雜交稻雜交甜椒雜交甜椒雜交茄子雜交茄子雜交玉米雜交玉米 BrainstormingWhat will you think of when you see the word “farming”?farmingfarmersfieldricefertiliz