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. |
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