问题 多项选择题

秋水仙碱的作用机制是()

A.抑制局部组织的中性粒细胞、单核细胞释放LTB4、IL-1等炎症因

B.抑制炎症细胞的变形和趋化(抑制微管),缓解炎症反应

C.抑制花生四烯酸代谢中的环氧酶活性,进而抑制前列腺素的合成

D.抑制近端肾小管对尿酸盐的重吸收,增加尿酸的排泄

答案

参考答案:A, B, C

阅读理解

A new report said scientists may not be far from giving apes the ability to think and talk like humans. The report is about experiments which transplant human cells into animals for medical purposes.

It claimed that concerns about the creation of talking apes should be taken seriously. It should also draw people’s attention to the possibility that the medical research about creating “humanised” animals is going to generate monsters.

A regulatory(监管的)body is needed to closely monitor any experiments that many risk creating animals with human-like consciousness or giving them any appearance or behavioural traits that too closely resemble humans, the report said.

Scientists would, for example, be prevented from replacing a large number of an ape’s brain cells with human brain cells until more is known about the potential risks. This has already been done in simpler animals like mice, which is judged to be less risky.

Under the new UK guidelines, the power to regulate tests on animals containing human material would be transferred to a body with wider responsibility for animal testing in the Home Office.

While there is no risk from experiments currently being carried out in Britain, it is possible that ethical (道德的) boundaries could be crossed within the next few years if scientists are not careful, the experts said.

Professor Thomas Baldwin, a member of the Academy of Medical Sciences working group that produced the report, said the possibility of humanised apes should be taken seriously.

He said, “The fear is that if you start putting very large numbers of human brain cells into the brains of primates(灵长类动物)you might transform the primates into something that has some of the abilities that we regard as distinctly human, such as speech, or other ways of being able to manipulate or relate to us.”

Professor Martin Bobrow, chair of the academy working group that produced the report, said, “The very great majority of experiments present no issues beyond the general use of animals in research and these should continue to proceed under the current regulations.”

Lord Willis, chair of the Association of Medical Research Charities, said, “AMRC only supports research that is absolutely necessary and where no suitable alternative methods are available.”

小题1:What is the passage mainly about?

A.Ethical rules to limit humanised animals.

B.The potential results of humanised apes.

C.The possibility of humanised animals.

D.The danger of human-like animals.小题2:The underlined word “manipulate” in the passage probably means “_______”.

A.appeal

B.possess

C.control

D.associate小题3:Which of the following statements might Professor Thomas Baldwin agree with?

A.It is necessary to do some experiments about humanised animals.

B.Experiments about humanised animals should be done within the law.

C.It would be dangerous to do experiments about humanised animals.

D.It is urgent to ban experiment about humanised animals.小题4:It can be inferred that _______.

A.people should be careful when creating talking apes

B.Thomas Baldwin and Lord Willis are from the same organization

C.creating humanised animals is difficult in Britain now

D.scientists must be cautious not to cross ethical boundaries

单项选择题