Question

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After enteringthe body, these tiny living things release poisons that make people sick.

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

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

When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. 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. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

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

1.Which of the following statements is NOT true?

A. Food when poisoned can make people sick.

B. Food poisoning means death.

C. Food poisoning comes in varieties.

D. Food poisoning 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 be 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 than chemicals

D.different types of food should be handled differently

5.It can be inferred from the passage that_________.

A.natural materials 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

Answer

1.B

2.C

3.B

4.D

5.C

【解析】

试题分析：这篇文章着重介绍食物中毒这一现象，通过对食物中毒症状，起因以及相对应的处理方法和策略进行表述，意在提高人们的健康认识，普及科学知识。

1.Food poisoning is usually not serious, but some types are deadly可知食物中毒一般不严重，只是有些会致命而已，而非意味着死亡，所以B项错误，

2.The symptoms of food poisoning usually begin within hours of eating the poisoned food知C项正确，A项fever只是食物中毒常见现象之一，而不是总会伴随着发热。

3.Certain microorganisms cause most types of food poisoning，Some chemicals can also cause food poisoning以及 Some plants and animals contain natural poisons that are harmful to people可知A，C，D都有提及，所以可以排除B项。

4.

5.Some plants and animals contain natural poisons that are harmful to people可知A项错误，第三段介绍化学物质并不是一定要加入到食品加工的过程中，所以B项错误，末段介绍绝大部分人可以从食物中毒恢复过来，由此可知food poisoning是可控制的，即C项。

考点：考查科普类生活常识