gets well prepared will pass the exam easily. A．WhoB．AnyoneC．WhoeverD．Those who 题目和参考答案——青夏教育精英家教网—

　　Zinc(锌) is one of about 20 elements necessary for good health. It is present in the body in a very small amount but makes it possible for important chemical actions to be carried out in cells. Scientists are just beginning to discover how zinc and other elements work.

　　Researchers first studied zinc as a way to speed recovery. Dr. Waltor Powys formerly with the United States Air Force noted that the laboratory animals recovered faster when some matters were added to their food. One of these matters was zinc. Dr. Powys later tested the zinc treatment on an American airman recovering from medical operations. The airman who received zinc sulphate(硫酸盐) recovered in half of the usual time. Other doctors studied persons who had a number of strange disorders. The doctors learned that all of these problems were caused by lack of zinc in the body. They treated these disorders successfully by giving the patients zinc sulphate.

　　The amount of zinc in the body can be found by examining blood and hair. A lack of this important element is not uncommon among people in both industrial and developing countries. Zinc is found in most high protein(蛋白质) foods such as meat, milk, fish and eggs. It is also found in whole grains. But many people do not eat enough of these food. Food markets should add these elements so that more people could get needed amount of these necessary matters.

1. Which of the following statements is true?

　　A. Scientists found how zinc works a long time ago.

　　B. People need a large amount of zinc to be healthy.

　　C. Zinc allows important chemical actions to take place in cells.

　　D. Zinc must be used in the course of medical operation.

2. One of the results from the study of zinc is that _______.

　　A. there’s only a little zinc in the human body

　　B. food rich in protein contains more zinc

　　C. some physical problems are caused by lack of zinc

　　D. any patient who receives zinc sulphate gets well immediately

3. The best title for the passage may be _______.

A. A New Discovery B. Zinc and Health

C. How Zinc Works D. Add Zinc to Your Food

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并将答案填写在本题下面的横线上。选项中有两项为多余的选项。（共5小题；每小题2分，满分10分）

Alice’s mother is very ill. She wishes to take a few days off from school so she goes to her teacher, Mr Green.

―Excuse me, Mr Green．I’d like to take a few days off．

―_______

―My mother’s ill．I have to take care of her．

―Oh dear! I’m sorry to hear that．_______

―No, thank you．My mother has caught a bad cold．She has a high fever and coughs day and night．The doctor says my mother has to be in hospital for a few days．I’d like to be with her．

―I understand．________

―I hope to be back next Wednesday．

―That’s all right．________

―Thank you , Mr Green．That’s very kind of you．I’ll write it immediately．

―_______I’ll certainly help you with them when you get back．

A．Is there anything I can do to help?

B．What’s the matter, Alice?

C．I hope your mother gets well soon．

D．How long will you be away?

E．Where have you been ,Alice?

F．But you must write a written request for leave to be away．

G．Don’t worry about your lessons．

Zinc(锌) is one of about 20 elements necessary for good health. It is present in the body in a very small amount but makes it possible for important chemical actions to be carried out in cells. Scientists are just beginning to discover how zinc and other elements work.

Researchers first studied zinc as a way to speed recovery. Dr. Waltor Powys formerly with the United States Air Force noted that the laboratory animals recovered faster when some matters were added to their food. One of these matters was zinc. Dr. Powys later tested the zinc treatment on an American airman recovering from medical operations. The airman who received zinc sulphate(硫酸盐) recovered in half of the usual time. Other doctors studied persons who had a number of strange disorders. The doctors learned that all of these problems were caused by lack of zinc in the body. They treated these disorders successfully by giving the patients zinc sulphate.

The amount of zinc in the body can be found by examining blood and hair. A lack of this important element is not uncommon among people in both industrial and developing countries. Zinc is found in most high protein(蛋白质) foods such as meat, milk, fish and eggs. It is also found in whole grains. But many people do not eat enough of these food. Food markets should add these elements so that more people could get needed amount of these necessary matters.

Which of the following statements is true?

A. Scientists found how zinc works a long time ago.

B. People need a large amount of zinc to be healthy.

C. Zinc allows important chemical actions to take place in cells.

D. Zinc must be used in the course of medical operation.

One of the results from the study of zinc is that _______.

A. there’s only a little zinc in the human body

B. food rich in protein contains more zinc

C. some physical problems are caused by lack of zinc

D. any patient who receives zinc sulphate gets well immediately

The best title for the passage may be _______.

A. A New Discovery B. Zinc and Health

C. How Zinc Works D. Add Zinc to Your Food

Maggie has been fortunate to find a job she loves and, ______,she gets well paid for it.

A.sooner or later

B.what’s more

C.as a result

D.more or less

John has been fortunate to find a job she loves and,________ she gets well paid for it.

A.sooner or later B.what’s more

C.as a result D.more or less

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