than ever before possible.

　　语篇解读：本文作者从几个方面介绍了克隆人技术给人类带来了益处。

　　1．According to Dr Richard Seed, we can use cloning technology to ________.

　　A．produce more animals

　　B．make people live happily

　　C．make people look younger

　　D．cure people of many diseases

　　解析：选C　推理判断题。根据第二段中的"to completely change the aging process"可知，Richard Seed认为克隆技术可以彻底改变变老的进程。因此推知，克隆技术可以使人们看上去更年轻。

　　2．We can learn from the passage that ________.

　　A．cloning has already been used to treat heart disease

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

　　C．most people in industrial countries suffer from heart

　　 disease

　　D．more people die of heart disease than of other diseases in the US

　　解析：选D　细节理解题。根据第三段最后一句可知，心脏病是美国和其他工业化国家的头号杀手，因此在美国死于心脏病的人要比死于其他疾病的人多。

　　3．What is the main idea of the last paragraph?

　　A．With cloning infertile couples could have children.

　　B．Treatment of infertility is not successful.

　　C．Infertile couples suffer a lot physically and mentally.

　　D．It is difficult for couples to have more children now.

　　解析：选A　段落大意题。联系全文可知，本文的主题是人类克隆技术。最后一段点明了现在治疗不孕的成功率很低，许多夫妇饱受煎熬，最后说明了利用人类克隆技术可以使不孕的夫妇有自己的孩子，因此A项正确。

4．What is the author's attitude towards human cloning?