人教版英语必修4第二单元warming up and reading 课件.ppt

Workingtheland,Unit2,WarmingUp,Lookatthetitleoftheunit“Workingtheland”.Whatdoesitmean?,Tousethelandtomakemoneythroughfarmingormining(矿业;采矿).,statistic,n.(常用plstatistics)数据；统计；统计数字；统计资料,Wordspreview,EnjoyapoemByLiShen,Farmersweedingatnoon,Sweatdownthefieldsoon.Whoknowsfoodonatray,Duetotheirtoilingday.,DoyouknowtheChinesepoem?,Haveyoueverbeentothecountryside?Whatdidyouseeordothere?,Haveyouevergrownanyplants?Ifso,whatdidyoudotogrowthem?Ifnot,whatkindofplantwouldyouliketotrygrowing?Howwouldyougrowit?,Whatdoyouknowabout“farming”?,wheat,sorghum,rice,corn,potato,cabbage,carrot,tomato,Doyouknowthefarmingsteps?,ploughing(犁田),seeding(播种),fertilizing(施肥),irrigating(灌溉),transplanting(移植),harvesting(收获),winnowing(扬谷),1.Readthestatisticsbelow.Didyouknowthesefactsbefore?Whatproblemdotheyshow?,Foodisthebasicneedforman.RiceisthemainfoodinallEastAsianandSoutheastAsiancountries.Itissaidthatthereare2.4billionpeopletoeatriceeverydaythroughouttheworld.,WhatisthemainfoodinallEastAsianandSoutheastAsiancountries?,2.Whatcanwedotosolveworldhunger?ControlthepopulationOpenmoreareasforgrowingIncreasetheoutput（产量）ofcrops,Justatthattime,aChinesescientistdeclared(宣布)totheworldthatChinacansolvetheproblembyhimselfandhelptosolvethesameproblemintheworld.,AChinesefarmerishelpingthehungrypeople.Whoishe?,YuanLongping-FatherofHybridRice,FatherofHybridRice,Heisfatherofhybridrice,whowasawarded“theNobelPrizeofAsia”.Hereceivedthehonorforhisgreatcontributionstohybridriceresearchandworkhedidtoimprovericeproductionindevelopingcountries.Heiscalledapioneerforallpeople.,DrYuanLongping(袁隆平博士）,Homework,Recitethene