Nearlyallourfoodcomesfromthesoil.Someofuseatmeat,ofcourse,butanimalsliveonplants.Iftherewerenoplants,wewouldhavenoanimalsandnomeat.Sothesoilisverynecessaryforlife.Thetopofthegroundisusuallycovered|小学英语问答-字典翻译问答网

问题标题：

Nearlyallourfoodcomesfromthesoil.Someofuseatmeat,ofcourse,butanimalsliveonplants.Iftherewerenoplants,wewouldhavenoanimalsandnomeat.Sothesoilisverynecessaryforlife.Thetopofthegroundisusuallycovered

问题描述：

Nearlyallourfoodcomesfromthesoil.Someofuseatmeat,ofcourse,butanimalsliveonplants.Iftherewerenoplants,wewouldhavenoanimalsandnomeat.Sothesoilisverynecessaryforlife.Thetopofthegroundisusuallycoveredwithgrassorotherplants.Theremaybedeadleavesanddeadplantsonthegrass.Thewastematter(粪)fromanimalsalsofallsonit. Allsoilneedsfood.Ifwedonotgiveitany,theplantswillbeweak.Farmersfoundthatanimals’wasteisthebestfoodforthesoil,butchemicalfertilizers(化肥)arealsoveryuseful.Thesamecrop(庄稼)shouldnotbegrowninthesameplaceeveryyear;it’sbettertohaveadifferentcrop.Achangeofcropandtheuseofagoodfertilizerwillkeepthelandgood. 小题1:Whatwouldhappenfirstwithoutplants?
A．Peoplewouldhavemorecrops.	B．Animalswoulddie.
C．Therewouldbemorefood.	D．Therewouldbelesssoil.

小题2:Whatdoesthewritertellusinthefirstparagraph(段落)?A．Leaves,plants,grassandwasteliveoneachother.B．Therewouldbenoanimalswithoutmeat.C．Therewouldbenoplantswithoutanimals.D．People,animals,plantsandsoilliveoneachother.小题3:Whichisthebestfoodforsoilinthefield?A．ChemicalfertilizersB．Plantsandgrass.C．Animals’waste.D．Differentcrops.小题4:Whydoweoftengrowadifferentcropinthesameplaceeveryyear?A．Becausewecankeepthesoilrichthisway.B．Becausewedon’thaveenoughland.C．Becausewewanttohaveadifferentfood.D．Becausewedothisasahabit.小题5:Whatisthebesttitleforthepassage?A．SoilandWasteB．PlantsandAnimalsC．FoodandWasteD．SoilandFood

代锋回答：

　　小题1:B小题2:D小题3:C小题4:A小题5:D 　　

点击显示

英语推荐

热门英语推荐