高一英语必修4-Unit-2课件.pptVIP

Who? 贾思勰 — 北魏末年和 东魏时的著名农学家, 为我国完整保存至今 最早的农书《齐民要 术》的作者。贾思勰 具有广泛的农事知识, 他深入乡里访问农家, 并到田间亲自观察实验,结合古文献中的资料与自己的心得,较为系统地 总结了6世纪以前中原地区的农业生产经验。《齐民要术》全书10卷,92篇,分别论述了各种农作物、蔬菜、果树、竹木的栽培,以及家禽家畜的饲养，农副产品加工等。尤为可贵的是,书中还记写了干旱地区的耕作、果树的嫁接等, 反映了北朝时期农业生产的发展情况。 born---in Yidu in Shandong Province live---in the sixth century AD What did he do--- research, collect information, study, do experiments and write a book called Qi Min Yao Shu Read the questions and answer them. 1 What made Jia Sixie become interested in improving Chinese farming? He saw how some farms produced good crops and healthy animals and others did not. 2 How did he think he could help farmers? He thought that when he found the best agricultural methods he would write them down so all farmers could read about them and benefit. What advice did Jia Sixie give farmers? Make notes in the chart below. Advice for farmers Keeping seeds Choosing seeds to plant Way to get rid of weeds (1) Way to get rid of weeds (2) Autumn ploughing Spring ploughing Crops Advice for farmers Keeping seeds hang seed-heads up to dry all winter knock seeds out when they are planted Choosing seeds to plant choose ones with the best colour Way to get rid of weeds (1) let animals eat them before planting Advice for farmers Way to get rid of weeds (2) turn the soil over and cover the weeds so they die Autumn ploughing deep ploughing Spring ploughing less deep ploughing Crops change crops grown in the same field every year Language points 1. He was lost in thought. be lost in sth. 全神贯注;沉浸于 be lost in thought/admiration 陷入沉思; 敬佩不已 ___ in thought，he almost ran into the car in front of him. [NMET96] A. Losing?