题目内容：

Salted fish is a common food that is popular in the south of China. It is chewy (有嚼劲的) and adds a salty taste to other dishes. But eating too much salted fish can cause cancer (致癌).

Salted fish is made with much salt, and the mixture of salt and fish later will turn into nitrites (亚硝酸盐).

When nitrites reach our stomach, they will be changed into another kind of thing that can cause cancer. So can’t we eat salted fish anymore?

“People don’t need to worry too much.” Huang Yufang from the Cancer Center of Guangzhou Medical University said. If you really like eating salted fish, you can eat a little once or twice a month. At the same time, you should also eat more fruit and vegetables that they have a lot of vitamin C (维他命 C),because this can help to stop the salt from becoming nitrites.

In fact, there are many foods that we often eat that can cause cancer, too, such as pickles (咸菜)，fried chicken in KFC and even red meat (pork and beef). But it doesn’t mean a person will get cancer just by eating them.

Some people have cancer and there are some reasons for it, such as one’s genes (基因), environment, lifestyle and eating habits. As long as one has good eating habits, one doesn’t need to stop eating cancer-causing foods at all, Fang Yu, a doctor from the Beijing Cancer Hospital said.

1.Salted fish popular in south China because____     .

A.fish is easy to find and cook.

B.it is a common food in south China.

C.it is chewy and adds taste to other dishes.

2.Salted fish may cause cancer when______     .

A.people cook it with salt

B.people eat too much of it

C.people eat it with some foods

3.What advice does Huang Yufang give to salted fish fans?

A.Stop eating salted fish from now on.

B.Eat a little of the salted fish every day.

C.Eat more fruit and vegetables to get more vitamin C.

4.From the passage, we can infer______.

A.food itself can’t make people get cancer

B.vegetables and fruit are more healthy than meat

C.people who have a good eating habits will not get cancer

5.The writer wants to______     .

A.ask us to stop eating cancer-causing foods

B.tell us getting more Vitamin C is the best way to kill cancer

C.show us that health has relation to (与…有关) many reasons