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1、Unit4Task1【答案】A.1)Theyarefarmsthatgrowvegetablesforcitypeopletoeatfresh.2)It’safarmthatgrowplantsandflowerstosell.3)Theyprotecttheplantsfromthecoldinthewinterbutletthemgetplentyoflight,sotheplantscanbegrownallthroughtheyear.B.1)canned,frozen2)flowers,gardenplants,homegardens,yards,windowboxes3
2、)buildings,furniture,firewood【原文】Grain,vegetablesandfruitsarefoundonmostfarms.Allofthemarefoodforanimalsandpeople.Graincanbefedtoanimalsjustasitisharvested.Butbeforepeopleusethemgrainsareusuallymadeintoflourorbreakfastcereal.Bread,macaroni（通心粉）,andcereals（麦片）allcomefromgrain.Tomatoes,beans,pot
3、atoes,beets（甜菜）,lettuce（生菜）,carrotsandonionsarefieldandgardenvegetables.Canyouthinkofanyothers?Vegetablesaregoodforpeopleandforsomeanimalssuchaspigsandrabbits.Farmsthatgrowvegetablesforcitypeopletoeatfresharecalledtruckfarms.Truckfarmsareusuallyclosetobigcities.Eachdayhundredsofloadsoffreshveg
4、etablesarebroughttostoresonthefarmers'trucks.Withoutthetruckfarmerspeopleincitieswouldnoteatwell.Andwithoutcitypeoplewhoeatfreshvegetables,thetruckfarmerswouldhavenowork.Therearemanykindsoffruit.Apples,pears,peaches,cherries,oranges,grapefruit,andberriesareafewkinds.Youwillbeabletothinkofother
5、kindsthatyoulike.Mostfruitisgrownonspecializedfarms.Butmanygeneralfarmshavesomefruittouseandsellalso.Likevegetables,fruitissoldfreshinmarkets.Butalargepartofbothfruitandvegetablecropsissenttofactoriestobecannedorfrozen.Inwarmpartsofourcountryfarmersgrowcotton,rice,tobacco,sugarcane（甘蔗）,andpean
6、uts.Specializedfarmsraiseflowersandgardenplants.Theyaresoldtoflorists（花商）andtofamiliesforhomegardens,oryards,orwindowboxes.Afarmthatgrowplantsandflowerstoselliscalledanursery（苗圃）.Mostnurserieshaveglassbuildings,calledhothousesorgreenhouses.Thehothousesareheatedtoprotecttheplantsfromcoldinthewi
7、nterbutletthemgetplentyoflight,sotheycanbegrownallthroughtheyear.Somefarmsgrowonlytrees.SomeoftheseareChristmastreefarms.Othersarelargeforestswheretreesaregrownfortheirwood.Thewoodisusedforbuildings,furnitureandfirewood.Sometreefarmsgro
