1. B。主旨题。根据文章第 1 段第 1 句 …children must wear resinous(树脂) glasses instead of the traditional glasses made of glass 可推知此题答案为 B。

3. It can be inferred from this news text that _______.

A. resinous glasses are not on sale in China yet

B. resinous glasses are not acceptable in China

C. glass glasses have disappeared on western market because there is a law against them

D. glass glasses are the first choice in China not only because of their price

[答案解析]

本文指出：传统的玻璃眼镜可能对眼睛产生很大的危害，目前世界上很多国家都在使用树脂眼镜，并建议中国小孩也使用树脂眼镜。

2. According to Alexander, the “timely treatment” to eyesight problems is _______.

A. to stop wearing glass glasses any more

B. to buy a pair of glasses and wear them right away

C. to wear suitable resinous glasses at the right time

D. to buy glasses made in Europe, Japan or America if possible

1. This news article mainly wants to tell us _______.

A. Alexander visited China and introduced a new type of glasses

B. we should wear resinous glasses instead of glass glasses

C. resinous glasses are popular in Europe and America

D. glasses can be made of other materials instead of glass

3. B。主旨题。根据第一句(主题句) Zinc(锌)is one of about 20 elements necessary for good health.可推知。

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According to a famous optical(光学) expert, Alexander, who recently visited Shanghai, the developed countries in Europe and America have made rules that children must wear resinous(树脂) glasses instead of the traditional glasses made of glass. This is because the glass glasses are more likely to do harm to children’s eyesight.

Alexander pointed out: wearing the right glasses as soon as possible is still the best way to cure and put right children’s eyesight problems.

In America and Japan the resinous glasses have taken up 80 percent of the glasses market. And some European countries and America have made it a law that children, teenagers and drivers must wear resinous glasses. Now, about 10 million children in China have different eyesight problems and they need timely treatment.

But still, too many parents are buying the traditional glass glasses for their children. This is mainly because many parents know little or nothing about the good points of the resinous glasses. Besides, the price for the new glasses is a little higher than the traditional ones.

2. C。细节题。根据The doctors learned that all of these problems were caused by lack of zinc in the body. 可推知此题答案为C。

1. C。细节题。根据 …but makes it possible for important chemical actions to he carried out in cells.可推知此题答案为C。

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

[答案解析]

本文是说明文，讲述了锌对人体的保健作用。

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

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.