Question

【题目】Drugs（药物）come in different ways. However, can you imagine that drugs come in chicken eggs? A team of scientists from England say that it can come true. They have developed special chickens that lay eggs with drugs inside. These special drugs can help with some kinds of illnesses. Until now, they have made two kinds of drugs. One drug can deal with skin problems and the other can deal with a nerve disease(神经性疾病).

Certain drugs are produced by the special chickens inside their egg whites. These drugs are made of proteins which can be found in animals’ skin, hair, milk and meat. The scientists also use DNA technology to make sure that the drugs are only inside the egg whites. In this way, the chickens can stay healthy.

Besides egg whites, drugs made of proteins come in milk of cows and sheep. Compared with cows and sheep, the special chickens have ascendancy over them. First, they are cheaper to raise. Second, they need less room and grow faster.

These special chickens can pass on their drug-producing ability. So far, five generations of the special chickens have appeared. But scientists may need more time to make the drugs perfect. It’s said that scientists will realize their dream in five to ten years.

【1】What is the passage mainly about?

A. It’s mainly about a serious illness.

B. It’s mainly about a natural ability of chickens.

C. It’s mainly about the special drugs.

D. It’s mainly about the DNA technology.

【2】According to the passage, the special chickens _________.

A. don’t need much room and it grows very slowly

B. were developed by scientists from France

C. produce certain drugs outside the eggs

D. can pass on this drug-producing ability to their children.

【3】The underlined word “ascendancy” in the passage means “________” .

A. problemsB. advantagesC. disadvantagesD. situations

Answer 1

【答案】

【1】C

【2】D

【3】B

【解析】

文章大意：文章主要讲述的是一种来源于鸡蛋的药物。英国科学家研制出了一种鸡，这种鸡产的鸡蛋的蛋清中含有一种蛋白药物，可以用来治病。虽然目前实现了药物来源于鸡蛋，但是科学家还需要很多年来优化这种药物，使其发挥更好的作用。

【1】推理判断题。文中首句提到"Drugs come in different forms．However，can you imagine that drugs come in chicken eggs？A team of scientists from England prove that it can come true"药物来源于各种方式，但是还没有药物来源于鸡蛋，近来科学家将其成为现实，下文也主要介绍的是药是如何来源于鸡蛋的，可知，故选C。

【2】细节理解题。根据These special chickens can pass on their drug-producing ability. 这些特殊的鸡可以传递它们的产毒能力。可知，故选D。

【3】词义猜测题。文中提到"First，they are cheaper to raise．Second，they need less room and grow faster"第一，养鸡比较便宜，第二，养鸡不会占用太多空间，这两点是相对于养牛和羊的优点，可知，由此推测词意为优势，选择B。