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1、Unit4Task1【答案】A.1)Theyarefarmsthatgrowvegetablesforcitypeopletoeatfresh.2)It’safarmthatgrowplantsandflowerstosell.3)Theyprotecttheplantsfromthecoldinthewinterbutletthemgetplentyoflight,sotheplantscanbegrownallthroughtheyear.B.1)canned,frozen2)flowers,gardenplants,home
2、gardens,yards,windowboxes3)buildings,furniture,firewood【原文】Grain,vegetablesandfruitsarefoundonmostfarms.Allofthemarefoodforanimalsandpeople.Graincanbefedtoanimalsjustasitisharvested.Butbeforepeopleusethemgrainsareusuallymadeintoflourorbreakfastcereal.Bread,macaroni（通心
3、粉）,andcereals（麦片）allcomefromgrain.Tomatoes,beans,potatoes,beets（甜菜）,lettuce（生菜）,carrotsandonionsarefieldandgardenvegetables.Canyouthinkofanyothers?Vegetablesaregoodforpeopleandforsomeanimalssuchaspigsandrabbits.Farmsthatgrowvegetablesforcitypeopletoeatfresharecalledtr
4、uckfarms.Truckfarmsareusuallyclosetobigcities.Eachdayhundredsofloadsoffreshvegetablesarebroughttostoresonthefarmers'trucks.Withoutthetruckfarmerspeopleincitieswouldnoteatwell.Andwithoutcitypeoplewhoeatfreshvegetables,thetruckfarmerswouldhavenowork.Therearemanykindsoff
5、ruit.Apples,pears,peaches,cherries,oranges,grapefruit,andberriesareafewkinds.Youwillbeabletothinkofotherkindsthatyoulike.Mostfruitisgrownonspecializedfarms.Butmanygeneralfarmshavesomefruittouseandsellalso.Likevegetables,fruitissoldfreshinmarkets.Butalargepartofbothfru
6、itandvegetablecropsissenttofactoriestobecannedorfrozen.Inwarmpartsofourcountryfarmersgrowcotton,rice,tobacco,sugarcane（甘蔗）,andpeanuts.Specializedfarmsraiseflowersandgardenplants.Theyaresoldtoflorists（花商）andtofamiliesforhomegardens,oryards,orwindowboxes.Afarmthatgrowpl
7、antsandflowerstoselliscalledanursery（苗圃）.Mostnurserieshaveglassbuildings,calledhothousesorgreenhouses.Thehothousesareheatedtoprotecttheplantsfromcoldinthewinterbutletthemgetplentyoflight,sotheycanbegrownallthroughtheyear.Somefarmsgrowonlytrees.SomeoftheseareChristmast
8、reefarms.Othersarelargeforestswheretreesaregrownfortheirwood.Thewoodisusedforbuildings,furnitureandfirewood.Sometreefarmsgro
