高中英语（人教版）必修4课件：unit 2 reading task.ppt

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1、人教课标高一必修4Unit2ReadingTaskWorkingthelandChinawasthefirstcountrytowritedownitsadvicetofarmers.JiaSixiewasthefirstpersontowriteacleardescriptionofthebestfarmingpracticesofhisday.zxxkDoyouknow?JiaSixie,authorofChina'sfirstagriculturalencyclopedia(百科全书),wasoneoftheleadingagronomists(农学家)inChin

2、esehistory.InthelateyearsoftheNorthernWeiDynasty(386-534),hewroteQiminYaoshu(EssentialSkillsfortheCommonPeople).ItistheearliestandmostcompleteagriculturalencyclopediastillinexistenceinChina.北魏未年贾思勰著的《齐民要术》，是一部总结农业生产技术的著作，“齐民”是使人民丰衣足食，“要术”是重要的方法。Howagriculturalideasmayhavebeenspreadandhowd

3、oyouthinkthiswasdone?Howcouldyoutellagriculturalideaswerepassedonfromgenerationtogeneration?LeadinReadthequestionsandanswerthem.WhatmadeJiaSixiebecomeinterestedinimprovingChinesefarming?Hesawhowsomefarmsproducedgoodcropsandhealthyanimalsandothersdidnot.Z,xxk2.Howdidhethinkhecouldhelpfarme

4、rs?Hethoughtthatwhenhefoundthebestagriculturalmethodshewouldwritethemdownsoallfarmerscouldreadaboutthemandbenefit.WhatadvicedidJiaSixiegivefarmers?Makenotesinthechart.AdviceforfarmersKeepingseedsChoosingseedstoplantWaytogetridofweeds(1)hangseed-headsuptodryallwinterknockseedsoutwhentheyar

5、eplantedchooseoneswiththebestcolourletanimalseatthembeforeplantingAdviceforfarmersWaytogetridofweeds(2)AutumnploughingSpringploughingCropsturnthesoiloverandcovertheweedssotheydiedeepploughinglessdeepploughingchangecropsgrowninthesamefieldeveryyear