Question

【题目】There are many ways in which human cloning is expected to benefit mankind. Below is a list that is far from complete.

Dr. Richard Seed, one of the leading proponents (支持者) of human cloning technology, suggests that it may someday be possible to reverse the aging process because of what we learn from cloning. Scientists believe that they may be able to treat heart attack victims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged. Heart disease is the number one killer in the United States and several other industrialized countries.

There has been a breakthrough with human stem cells. Embryonic (胚胎的) stem cells can be grown to produce organs to repair or replace damaged ones. Skin for burn victims, brain cells for the brain damaged, hearts, lungs, livers, and kidneys could be produced. By combining this technology with human cloning technology it may be possible to produce needed organs for suffering people that will be free of rejection by their immune systems. Conditions such as Alzheimer’s disease, Parkinson’s disease, diabetes, heart failure, and other problems may be made curable if human cloning and its technology are not banned.

Despite getting a fair amount of publicity in the news current treatments for infertility (不生育), in terms of percentages, are not very successful. One estimate is that current infertility treatments are less than 10 percent successful. Couples go through physically and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for more infertile couples to have children than ever before.

【1】 The passage mainly deals with _______.

A. the problems with human cloning

B. the disadvantages of human cloning

C. the advantages of human cloning

D. the different ways human cloning is done

【2】According to Dr. Richard Seed we can use cloning technology _______.

A. to make people look younger

B. to make people live longer

C. to cure people of many diseases

D. to produce more animals

【3】 From the passage we can infer that _______.

A. cloning has already been used to treat heart diseases

B. we can treat a man’s heart disease by cloning others’hearts

C. most people in industrialized countries suffer from heart diseases

D. more people die of heart diseases than of other diseases in America

【4】What would be the best headline for the last paragraph?

A. With Cloning, Infertile Couples Could Have Children

B. Treatment of Infertility Is Not Successful

C. Physically and Emotionally Pain of Infertile Couples

D. The News Is Not Telling the Truth

【5】Treated with an organ cloned from his own stem cells, _______.

A. the patient is more likely to develop other diseases

B. the patient’s immune systems don’t reject the new organ

C. the patient will be free of rejection by his immune systems

D. the patient will suffer from Alzheimer’s disease

Answer 1

【答案】【1】C

【2】B

【3】D

【4】A

【5】B

【解析】【1】根据第一段中的“. . . is expected to benefit mankind. ”及下面的内容判断，文章主要谈论的是 human cloning 的优点。

【2】根据“to reverse the aging process”推断，利用学会的克隆技术可以使人们长寿。

【3】心脏病是美国和其他工业化国家的头号杀手，因此死于心脏病的人要比死于其他疾病的人多。

【4】最后一段的主要意思是“利用克隆技术可以使不能生育的夫妇有自己的孩子”，所以用 A 项作小标题。

【5】由第四段中“. . . that will be free of rejection by their immune systems. ”可知，用自己的细胞克隆的器官不会有排斥反应。