1. The aim of “Noah’s Ark” project is to_______. 

A. make effort to clone the endangered pandas

B. save endangered animals from dying out

C. collect DNA of endangered animals to study

D. transfer the nuclear of one animal to another

3. D。细节题。根据文章第 4 段第 2 句 This is mainly because many parents know little or nothing about the good points of the resinous glasses 可推知此题答案为 D。

(18)

With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species(物种). That’s similar to what Texas A＆M University researchers have been undertaking(负责) for the past five years in a project called “Noah’s Ark”.

Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A＆M’S College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.

It is estimated that as many as 2, 000 species of mammals, birds and reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.

Chinese scientists said they grew an embryo introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.

The entire procedure(过程) could take from three to five years to complete.

“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy(having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A＆M, the first-ever attempt at cloning a dog.

“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”

2. C。推断题。根据文章第 2 段 …wearing the right glasses as soon as possible is still the best way to cure and put right children’s eyesight problems 可推知此题答案为 C。

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

(1―3 BCD)

【答案与解析】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。

(17)

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。