The food we eat seems to have a great effect on our health. Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things commonly used to keep colour in meats and other food additives（添加剂）caused cancer.

Yet, these additives remain in our food, and it is difficult to know which things on the wrappings（包装）of foods are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to their animals, and because of this, penicillin has been found in the milk of cows. Sometimes similar things are supplied to animals not for their health, but just to make a profit.

The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although some countries have tried to control such things, the practice continues.

According to this passage, we can know      . 

  A. perhaps most of human illness is caused by what we eat

  B. perhaps most kinds of cancer are related to what people eat

  C. cancer was discovered in 1945

  D. science has made food unfit to eat

Things that are used to keep colours in meats are       .

  A. harmful      B. useless        C. helpless         D. dangerous

All the additives       .

  A. are bright and colourless         

B. are not bright and colourful

  C. have indirect effects on our health 

D. have direct effects on our health

People use additives       .

  A. to make food more unfit to eat  

B. to improve the colour and taste of the food

  C. to change colour of the food    

D. to take off the diseases of the food

Which of the following is not true?

  A. Some wrappings of food are harmful.

  B. Farmers try to make more money on the market by fattening their animals.

  C. “The practice continues” means “things are still going on like that”.

  D. We needn’t take care of what we eat.

1.As a volunteer in the child center, __________

A．you should follow the schedule of the center strictly

B．you must keep the child you look after indoors

C．you will earn some money for what you have done

D．you yourself can decide how long to stay there

2.What may NOT be needed if you apply to Wilder Research program?

A college degree and library experience.

B. Having knowledge of the Internet.

C. Being willing to help others

D. Being able to handle emergencies.

3.From the third advertisement, we can learn that __________．

A．only individuals can apply for the job

B．applicants should pay close attention to detail

C．applicants are required to do some physical work

D．applicants will deliver flyers homes in the neighborhood.

4.The three advertisements _________．

A．are not all for part-time opportunities

B．are not all chances to make some extra money

C．all can be communicated on the Internet

D．are offered by the same organization

III．阅读理解（共20小题；每小题1.5分；满分30分）
A
The food we eat seems to have a great effect on our health. Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of human illness is related to food and forty percent of cancer is related to food as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things commonly used to keep color in meats and other food additives（添加剂）caused cancer.
Yet, these additives remain in our food, and it is difficult to know which things on the wrappings of foods are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin (青霉素) to their animals, and because of this, penicillin has been found in the milk of cows. Sometimes similar tings are supplied to animals not for their health, but just to make a profit.
The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although some countries have tried to control such things, the practice continues.
51. According to this passage, we can know___________.
A. cancer was discovered in 1945
B. science has made food unfit to eat
C. perhaps most of human illness is caused by what we eat
D. perhaps most kinds of cancer are related to what people eat
52. The additives in food_________.
A. are bright and colorless                   B. have indirect effects on our health
C. have direct effects on our health          D. have direct and indirect effects on our health
53. People use additives_________.
A. to change color of the food               B. to make food more unfit to eat
C. to take off the diseases of the food        D. to improve the color and taste of the food
54. Which of the following is Not true?
A. We needn’t take care of what we eat.
B. Some wrappings of food are harmful.
C. “The practice continues” means “things are still going on like that”.
D. Farmers try to make more money on the market by fattening their animals.

The food we eat seems to have great effects on our health. Although science has made great steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to diet as well. Different cultures are subject to certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery.

In 1945, government researchers realized that nitrates(硝酸盐) and nitrites(亚硝酸盐), commonly used to keep color in meats, and other food additives, caused cancer. Yet, these additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels(标签) of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to cows and chick and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are given to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although the FDA has tried repeatedly to control these, the practices continue.

How has science done a bad service to mankind?

A. Diseases caused by food have been done away with.

B. It has caused a lack of information about the value of food.

C. Some harmful materials have been added to our food.

D. Scientists have made food more expensive to eat.

What are nitrates used for?

A. They help process packaged food.        

B. They keep the color in meats.

C. They cure diseases of cows and chickens.

D. They cause the animals to become fatter.

Which of the following statements is NOT true?

A. You can find out harmful additives on the packaging labels of food.

B. Drugs given to animals are not all for medical reasons.

C. Researchers knew about the harm of food additives about 60 years ago.

D. Food may cause forty percent of cancer in the world.

According to the passage, the FDA might be _________.

A. an organization which controls the safety of food    

B. a producer which makes additives

C. a factory which processes food                   

D. a hospital which cures cancer

The food we eat seems to have great effects on our health. Although science has made great steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to diet as well. Different cultures are subject to certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery.

In 1945, government researchers realized that nitrates(硝酸盐) and nitrites(亚硝酸盐), commonly used to keep color in meats, and other food additives, caused cancer. Yet, these additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels(标签) of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to cows and chick and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are given to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although the FDA has tried repeatedly to control these, the practices continue.

1.How has science done a bad service to mankind?

A. Diseases caused by food have been done away with.

B. It has caused a lack of information about the value of food.

C. Some harmful materials have been added to our food.

D. Scientists have made food more expensive to eat.

2.What are nitrates used for?

A. They help process packaged food.        

B. They keep the color in meats.

C. They cure diseases of cows and chickens.

D. They cause the animals to become fatter.

3.Which of the following statements is NOT true?

A. You can find out harmful additives on the packaging labels of food.

B. Drugs given to animals are not all for medical reasons.

C. Researchers knew about the harm of food additives about 60 years ago.

D. Food may cause forty percent of cancer in the world.

4.According to the passage, the FDA might be _________.

A. an organization which controls the safety of food    

B. a producer which makes additives

C. a factory which processes food                   

D. a hospital which cures cancer