1. We are all human beings.
    我们都是人类。

2. While she always criticized the fickleness of human nature,
    她一方面总是批评人的本性朝三暮四，

3. Would it, he wondered, do the same to bacteria in the human body?
    因此，他思索着：这种霉菌是否也能杀灭人体内的细菌呢？

4. What seems to be lacking are the human leadership and management systems to do the job.
    看来所缺少的是做这项工作的领导班子和管理机构。

5. Why would anyone want to clone a human being in the first place?
    首先，为什么有人想克隆人类？

6. Would a cloned human be identical to the original?
    克隆的人会和母本一模一样吗？

7. While human cloning might not offer great benefits to humanity, no one has yet made a convincing case that it would do any real harm, either.
    虽然克隆人类可能不会给人类带来很大的好处，但也没有人能提供有力的例证证明它会带来真正的危害。

8. Why should we think it would be different if human cloning becomes available?
    为什么我们要认为能够克隆人时事情就该不一样？

9. When research into cloning is resumed, human cloning should remain a research activity for an extended period.
    当克隆研究重新开始时，克隆人类应该仍然是一项历时长久的研究活动。

10. While not exactly a top selling book, The History and Geography of Human Genes is a remarkable collection of more than 50 years of research in population genetics.
    尽管不完全是畅销书，《人类基因的发展与地理分布》是一本汇集了50多年来人种遗传学方面的研究成果的好书。