题目内容
【题目】根据短文内容的理解,选择正确答案。
Research on embryonic stem cells (胚胎干细胞) is debatable because it requires the destruction of live human embryos.
Supporters find it easy to minimize the significance of this fact because the embryos are only a few days old—nothing more than "blastocysts (胚泡)".
But if it's OK to destroy 5-day-old embryos to further scientific inquiry, is it OK to destroy embryos that are five weeks old? Five months? Eight months? Science can't answer that question.
You don't have to be part of the pro-life group to have concerns about this kind of scientific research. James Thomson, the University of Wisconsin biologist has said, "If human embryonic stem cell research does not make you at least a little bit uncomfortable, you have not thought about it enough." However, the president's new order suggests we should not think too much.
Recently, supporters of embryonic stem cell research called on president to allow experiments using "surplus (多余的)" fifty frozen embryos in fertility clinics, arguing that they would be disposed of anyway. But Obama didn't limit his new policy to these fertilized eggs.
On the contrary, he left open the possibility of funding studies using embryos created specifically so their cells can be harvested. He did, however, reject another option. "We will ensure," he said, "that our government never open the door to the use of cloning for human reproduction. It is dangerous, profoundly wrong and has no place in our society, or any society."
But this position is hard to square with his claimed approach. On one hand, the president says his policy is "about letting scientists do their jobs, free from pressure". On the other, he will use pressure to keep them from doing reproductive cloning.
What this policy means is simple: It may be permissible for scientists to create cloned embryos and kill them. It's not permissible to create cloned embryos and let them live. Their cells may be used for our benefit, but not for their own.
It's the policy that is risky not just to days-old human embryos. The rest of us are sure to receive important medical benefits from this research one day. But we may lose something even more important in a moral sense.
(1)It's implied in the fourth paragraph that pro-life group ________.
A.support the research on embryonic stem cells
B.don't agree with any kind of scientific research
C.agree with James Thomson's opinion
D.rarely think of the consequences of embryonic stem cell research
(2)The underlined phrase "square with" in the passage is closest in meaning to ________.
A.find a square tool for
B.be in line with
C.quarrel with
D.pay off
(3)Which of the following statement is TRUE according to the passage?
A.The author thinks there's a big difference between a 5-day embryo and a 8-month embryo.
B.In Obama's policy, embryonic researchers can only use surplus embryos in fertility clinics.
C.President Obama hasn't expressed his attitude toward human reproductive cloning.
D.The research on embryonic stem cells may bring people medical benefits in the future.
(4)The author thinks the policy is worrying because ______.
A.the research is against the law
B.we may suffer morally for the research
C.scientists are not really working without pressure
D.ban on human cloning is in the long run harmful to human development
【答案】
(1)C
(2)B
(3)D
(4)B
【解析】文章论述了人们对胚胎干细胞实验不同的看法以及总统奥巴马的观点,说明了实验的利和弊。
(1) 推理判断题。根据第四段内容可知,James Thomson不赞成胚胎干细胞实验,根据You don't have to be part of the pro-life group to have concerns about this kind of scientific research.可知,pro-life group赞成James Thomson的观点,故选C。
(2) 猜测词义题。此处指他的这种立场很难和他宣称的方法一致,square with"与……协调或一致"和B项同义,故选B。
(3) 细节理解题。根据is it OK to destroy embryos that are five weeks old? Five months? Eight months?可知,作者认为实验和胚胎发育时间长短没关系,A错误;根据What this policy means is simple: It may be permissible for scientists to create cloned embryos and kill them. It's not permissible to create cloned embryos and let them live.是奥巴马对此项研究的观点,B、C错误;根据Their cells may be used for our benefit和The rest of us are sure to receive important medical benefits from this research one day.可知,此项研究将来会给人们带来重要的医疗价值,D正确。故选D。
(4) 推理判断题。根据最后一段But we may lose something even more important in a moral sense.可知,研究有利有弊,在道德观念上会失去某些东西。故选B。