Food Poisoning
Food sometimes getspoisoned with harmful things,A person who eats such food can get an illnesscalled
food poisoning. Foodpoisoning is usually not serious,but some types are deadly.The symptoms of foodpoi-
soning usually beginwithin hours of eating the poisoned food.Fever is one of the most commonsymptoms.
Certainmicroorganisms（微生物）causemost types of food poisoning. Bacteria and other microorganisms
can poisoneggs,meat,vegetables,and many other foods.After entering the body,these tinyliving things re-
lease（释放）poisons that make people sick.
Some chemicals canalso cause food poisoning. They are often added to food while it is beinggrown,pro-
cessed,orprepared.For example,many farmers spray chemicals on crops to kill weeds andinsects.Some
people may have abad reaction to those chemical、when they eat the crops.
Some plants andanimals contain natural poisons that are harmful to people.These includocertain kinds
ofseafood,grains,nuts,seeds,beans,and mushrooms.
When people handlefood properly,the risk of food poisoning is very small.Microorganisms multiplyrapidly
in dirty places andin warm temperatures.This means that people should never touch food with dirtyhands or
put food on unwashedsurfaces.Food should be kept in a refrigerator to stop microorganisms fromgrowing,
Meat needs to becooked thoroughly to kill any dangerous microorganisms. People should also washfood covered
with chemicalsbefore eating it.Finally,people should not eat wild mushrooms or other foodsthat grow in the
wild.Some of thesefoods may contain natural materials that are poisonous to humans.Inaddition,some types
of fish can bepoisonous.
Most people recoverfrom food poisoning after a few days of resting and drinking extra water. Ifpeople
eat naturalpoisons,they must go to the hospital right away to have their stomachs emptied.
A.mushrooms shouldnot he eaten
B.vegetables aresafer than meat and seafood
C.natural poisonsare more dangerous than chemicals
D.different types offood should he handled differently
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