1. Human tissue is made up of cells.
    人体的组织是由细胞构成的.

2. Human knowledge is finite.
    人类的认识是有限的.

3. Hanging is an atrociously archaic way of killing a human being
    绞刑是一种不再使用的残忍的杀人方法。

4. Human beings enjoy challenges.
    人类愿意接受挑战。

5. He was a scientist, and he learned a great deal about human anatomy.
    他还是一位科学家，对人体解剖学也颇有研究。

6. He had discovered a great law of human action without knowing it — namely, that in order to make a man or a boy desire a thing, it is only necessary to make the thing difficult to attain.
    他不知不觉发现了人类行为的一个伟大的定律——那就是，若要使人追求一物，只要让它难以到手就行了。

7. Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.
    对人类的研究主要集中在老年人身上，其结果表明，经常锻炼能提高大脑处理信息的速度。

8. Human activities can cause or accelerate permanent changes in natural systems.
    而人类活动能够引起或加速自然体系中的永久性变化。

9. Human population growth is creating food shortages, problems of air quality, and changes in weather patterns.
    人口的增长带来了粮食短缺、空气质量降低、天气状况变化等问题。

10. How would a human clone refer to the donor of its DNA?
    克隆的人将如何称呼其DNA捐赠者？