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1、Unit4Task1【答案】A.1)Theyarefarmsthatgrowvegetablesforcitypeopletoeatfresh.2)It’safarmthatgrowplantsandflowerstosell.3)Theyprotecttheplantsfromthecoldinthewinterbutletthemgetplentyoflight,sotheplantscanbegrownallthroughtheyear.B.1)canned,frozen2)flowers,gardenplants,homegardens,ya
2、rds,windowboxes3)buildings,furniture,firewood【原文】Grain,vegetablesandfruitsarefoundonmostfarms.Allofthemarefoodforanimalsandpeople.Graincanbefedtoanimalsjustasitisharvested.Butbeforepeopleusethemgrainsareusuallymadeintoflourorbreakfastcereal.Bread,macaroni（通心粉）,andcereals（麦片）all
3、comefromgrain.Tomatoes,beans,potatoes,beets（甜菜）,lettuce（生菜）,carrotsandonionsarefieldandgardenvegetables.Canyouthinkofanyothers?Vegetablesaregoodforpeopleandforsomeanimalssuchaspigsandrabbits.Farmsthatgrowvegetablesforcitypeopletoeatfresharecalledtruckfarms.Truckfarmsareusuallyc
4、losetobigcities.Eachdayhundredsofloadsoffreshvegetablesarebroughttostoresonthefarmers'trucks.Withoutthetruckfarmerspeopleincitieswouldnoteatwell.Andwithoutcitypeoplewhoeatfreshvegetables,thetruckfarmerswouldhavenowork.Therearemanykindsoffruit.Apples,pears,peaches,cherries,orang
5、es,grapefruit,andberriesareafewkinds.Youwillbeabletothinkofotherkindsthatyoulike.Mostfruitisgrownonspecializedfarms.Butmanygeneralfarmshavesomefruittouseandsellalso.Likevegetables,fruitissoldfreshinmarkets.Butalargepartofbothfruitandvegetablecropsissenttofactoriestobecannedorfr
6、ozen.Inwarmpartsofourcountryfarmersgrowcotton,rice,tobacco,sugarcane（甘蔗）,andpeanuts.Specializedfarmsraiseflowersandgardenplants.Theyaresoldtoflorists（花商）andtofamiliesforhomegardens,oryards,orwindowboxes.Afarmthatgrowplantsandflowerstoselliscalledanursery（苗圃）.Mostnurserieshavegl
7、assbuildings,calledhothousesorgreenhouses.Thehothousesareheatedtoprotecttheplantsfromcoldinthewinterbutletthemgetplentyoflight,sotheycanbegrownallthroughtheyear.Somefarmsgrowonlytrees.SomeoftheseareChristmastreefarms.Othersarelargeforestswheretreesaregrownfortheirwood.Thewoodis
8、usedforbuildings,furnitureandfirewood.Sometreefarmsgro
