Food sometimes gets poisoned with harmful things. A person who eats such food ca

Food sometimesgets poisoned with harmful things. A person who eats such food can get anillness called food poisoning. Food poisoning is usually not serious, but sometypes are deadly. The symptoms of food poisoning usually begin within hours ofeating the poisoned food. Fever is one of the most common symptoms.

Certainmicroorganisms（微生物）cause most types of food poisoning. Bacteria and othermicroorganisms can poison eggs, meat, vegetables, and many other foods. Afterentering the body, these tiny living things release（释放）poisonsthat make people sick.

Some chemicalscan also cause food poisoning. They are often added to food while it is beinggrown, processed, or prepared. For example, many farmers spray chemicals oncrops to kill weeds and insects. Some people may have a bad reaction to thosechemicals when they eat the crops.

Some plants andanimals contain natural poisons that are harmful to people. These includecertain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

When peoplehandle food properly, the risk of food poisoning is very small. Microorganismsmultiply rapidly in dirty places and in warm temperatures. This means thatpeople should never touch food with dirty hands or put food on unwashedsurfaces. Food should be kept in a refrigerator to stop microorganisms fromgrowing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms.People should also wash food covered with chemicals before eating it. Finally,people should not eat wild mushrooms or other foods that grow in the wild. Someof these foods may contain natural materials that are poisonous to humans. Inaddition, some types of fish can be poisonous.

Most peoplerecover from food poisoning after a few days of resting and drinking extrawater. If people eat natural poisons, they must go to the hospital right awayto have their stomachs emptied.

1.Which of the following statements is NOTtrue?

A. Food whenpoisoned can make people sick.

B. Foodpoisoning means death.

C. Foodpoisoning comes in varieties.

D. Foodpoisoning can be serious.

2.We know from the passage that the symptoms of food poisoning        .

    A.are always accompanied by a fever

    B.are too common to be noted

    C.can be noticed within hours

    D.can he ignored

3.Food poisoning can be caused by all the following EXCEPT       .

    A.some chemicals

    B.low temperatures

    C.some tiny living things

    D.certain natural materials

4.From Paragraph 5,we can learn that        .

    A.mushrooms should not be eaten

    B.vegetables are safer than meat and seafood

    C.natural poisons are more dangerous thanchemicals

    D.different types of food should be handleddifferently

5.It can be inferred from the passage that       .    A.naturalmaterials are safe in food processing

    B.chemicals are needed in food processing

    C.food poisoning can be kept under control

    D.food poisoning is out of control

试题答案

【答案】

1.B

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