语法填空.语法填空.Ifyouwalkedpastthesupermarket,youwouldfindmanyfoodsthathavebeentreated1_____(kill)anyharmfulgermsthatmighthavebeeninthem.Milkisagoodexample.Rawmilk-thatis,milkjustasitcomesfromth

　　语法填空.

　　语法填空. Ifyouwalkedpastthesupermarket,youwouldfindmanyfoodsthathavebeentreated1_____(kill)any

　　harmfulgermsthatmighthavebeeninthem.Milkisagoodexample.Rawmilk-thatis,milkjustasitcomes

　　fromthecow-maybe2_____(safe)todrink.But3_____themilkisheatedandthencooled,theharmful

　　germsarekilled.Theman4_____discoveredthiswayoftreatingmilkwasaFrenchmanbythenameof

　　LouisPasteur.

　　Inthesupermarketyouwouldalsofindmanyfrozenfoods-frozenfruits,vegetables,meatandfish.As

　　techniquesfor5_____(freeze)foodarebeingimproved,morefrozenfoodsareappearingonthemarket,

　　andmorepeoplearebuyingthem.Fruitsandvegetabletobesoldinthesupermarketareoftenfrozenthe

　　moment6_____arepicked.The7_____fruitsandvegetablearefrozen,thebetter.8_____machinesare

　　oftentakenintothefieldswhere9_____foodgrows,sothatlittletimeislost10_____pickingandfreezing.