1、Unit 2 working the land warm up辣椒辣椒Pepper Cotton hybrid cotton/杂交棉杂交棉 eggplant Super hybrid pear cornwatermeloncabbageDo you know these grains(谷物谷物)?wheat sorghumrice 高粱Super hybrid rice Do you know how to grow the rice?1.plough the soil 2.transplant rice seedlings 3.fertilize 4.get in crops Have yo
2、u ever grown any plants?Do you know the steps of how to grow rice?plough the fieldgrow some young plantsinsert the young plants into the fieldharvestriceWhat 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 throu
3、ghout the world.Discussion What do you think would happen if tomorrow there was suddenly no rice to eat?What do you think would happen if tomorrow there was suddenly no rice to eat?If that happened,people there would suffer from starvation.People would be panic(惊慌惊慌)and the whole country would get i
4、nto trouble.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.What is happening to these people?What can we do to solve this problem?Do something to help end hunger in the world!What will you think
5、of when you see the word“farming”?farmingfarmersfieldricefertilizerwheatcottonsoilirrigating(灌溉灌溉)ploughing crops1.What animals did farmers use to plough the field in the old days?Now what do they use?Farmers used cattle/cows to plough the field in the old days.Now they use machines.In the past,farm
6、ers grow crops in the traditional way.Using cattle to plough the field.farmers work most of the day all year around,but they could not produce enough food for the whole population.At present,they use modern techniques in their fields to improve agricultural production such as chemical fertilizers,gr
7、eenhouses and so on.Great changes have taken place in agriculture.2.What do you think plants need to grow well?Temperature,sunlight,water,air and good soil.3.What are the three most important nutrients for a plant?The three most important nutrients are nitrogen,phosphorus and potassium.营养物质营养物质4.Whe
8、n do you think is the harvest time?What kind of plant would you like to grow?How will you grow it?Learn the poem.悯农悯农 唐唐李绅李绅锄禾日当午，锄禾日当午，汗滴禾下土。汗滴禾下土。谁知盘中餐，谁知盘中餐，粒粒皆辛苦。粒粒皆辛苦。Weed Sweat trayToiling（辛勤劳动）（辛勤劳动）translation The Peasants Lot Li Shen(772-846)Farmers weeding at noon,Sweat down the field soon
9、.Who knows food on a tray,Due to their toiling day?mamaShe used to be my only enemy and never let me be free Catching me in places that I knew I shouldnt be Every other day I crossed the line I didnt mean to be so bad I never thought you would become a friend I never had Back then I didnt know whywh
10、y you were misunderstood So now I see through your eyes All that you did was loveMama I love youMama I care Mama I love youMama my friendYoure my friend Mama I love you.I didnt want to hear it then but Im not ashamed to say it now Every little thing you said and did was right for me I had a lot of time to think aboutabout the way I used to be Never had a sense of my responsibility but now Im sure I know why(I know why)why you were misunderstoodSo now I see through your eyes all I can give you is love(all I can give you is love)
