4.28 b4u2演示教学.ppt

Super Hybrid Rice;P23 名师 词汇短语整理 make a breakthrough取得突破 come up with an idea of…想出…的主意/点子 plunge China into an unprecedented famine使中国陷入了前所未有的饥荒 cultivate/develop a type of hybrid rice species培育出新的杂交稻品种 yield=produce生产 be capable of…能够的，能干的 alter=change large-scale大规模的;Find out the main idea of each paragraph.;四、课文回顾 Dr. Yuan was born in Beijing in 1930.1_____ he graduated from Southwest Agriculture College in 1953，he has devoted 2___ life 3 __ finding ways to grow more and more rice. As a young man, he saw the great need for increasing the rice output. At that time,hunger was 4__ serious problem in many parts of the country. ; Dr. Yuan searched for a way 5______ (increase)rice harvests without expanding the area of fields. In 1950，Chinese farmers could only produce fifty million tons of rice. Last year，however, 6______ (near) two hundred million tons of rice 7____________ (produce). These increased harvests mean 8____ 22% of the world’s people are fed from just 7% of the farmland in China. ;Dr. Yuan is now circulating his 9__________ (know)in India，Vietnam and other less developed countries to increase their rice harvests. Thanks to his research，the UN is trying to rid the world 10___ hunger. Using his hybrid rice farmers are producing harvests twice as large as before.; Para 1 A. Dr Yuan’s dreams. Para 2 B. Dr Yuan’s personality. Para 3 C. Dr Yuan’s biography. Para 4 D. Dr Yuan’s appearance and his achievement.;课文概要 以约30个词概括课文内容要点。;11. _________________________ 对……满意 12. __________________________ 有做某事的自由 13. in the following decade _____________ 14. according to the statistic ______________ 15. be rooted in ______________ 16. be fertile in ______________ 17. the underlined phrase ______________ 18. organic farming _______________;核心单词;搭配：用适当的介词填空。 (1)struggle ________ independence为争取独立而斗争 (2)struggle _____________ death