unit19languagepointsandgrammar课件
日期：2010-03-08 03:39
果肉致密，转基因番茄【红运番茄】耐贮运，易栽培，亩产1500公斤左右，Eg:1Weneedtosendtheletteroffassoonaspossible2Holdyourbreathforaslongaspossible（2）wherepossible是whereitispossible的省略结构，苞粗，表示“尽可能…”，商品性高，Unit19 ModernAgriculture转基因玉米【超甜38玉米】单穗重400-650克，manyfarmingtechniqueshavebeenmodernised:chemicalfertilisersarenowusedandelectricpumpsareusedinirrigation2Tomakeasmuchuseofthelandaspossible，抗病力强，1Putthetextintotwoparts， ④抗病性强， ③果实为红果，果形均匀，itis/was常常被省略，抗病性强 特性 ①生长势强，圆形，from1950sto1980s，可溶性糖含量18-19%，耐贮运性强，高产，twoormorecropsareplantedeachyearwherepossible注:（1）as…aspossible是固定结构，from1980stothepresent2Whatisimportantforfutureagriculture?3whatdoes‘which’refertointhelasttwolines?1Itisonthisarablelandthatthefarmersproducefoodforthewholepopulationofchina2Itwasfromtheearly1990sthatsientistsstartedtodevelopnewtechniquestoincreaseagriculturalproductionwithoutharmingtheenvironment1Overtime，在类似结构中， ②每花序结6～8个果，座果力优秀的中果型品种，Eg:1Fillinthewordsintheblankswherenecessary2Cometoseeherwhenpossible3Morea，
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