unit19-warmingup&listening课件

000，howmanywereraisedfrom1991to1995?3，000×(1+63%)=4，sheepandcattlewereraisedduringtheyearsfrom1986to1990，agricultureWhatwillyouthinkofwhenyouseetheword“agriculture”?10%20%30%40%50%60%70%80%90%100%GrainCottonOilSugarMeatFishFruitGrowthofmajorfarmproducts1991-95comparedwith1986-90percentages1Whichfarmproductgrewmostduringthefirstfiveyearsofthe1990s?Fruit2Howmuchdiditgrowcomparedwiththatduringthesecondhalfofthe1980s?81%3Whydidfruitgrowsomuch?4Whichgrewleast?Why?Grain5Ifthreemillionpigs，890，0001ListentothetapeThepassageyouheartalksabout()historyoffarming()farmersinAmerica()fishing()protectionofnature()farminginChina()pigs()environmentalproblems()trees()dikes2Whichofthefollowingsentencesaretrue(T)andwhicharefalse(F)?InearlytimesfarmersinChinamovedaroundandburntforests()(2)，