16．We can stay young forever．That is the message Dr．Shen Ziyin wants to give the world．And the Chinese doctor claims that he has found an answer to the problems of aging．
His solution is a herbal medicine to slow the process of aging．
Dr．Shen Ziyin has been trained in Western medicine．At the same time he studied traditional Chinese medicine．And，he has been working for the past forty years to put together the best of both and find a cure for aging．He has taken a hint from the ancient Chinese medicine system called"shen"．
According to Shen，it is the kidney which adjusts the functioning of the body as well as its aging process．It is responsible for the level of activity that the human bodies go through．Studies conducted by Dr．Shen show that herbal medicine based on the shen system slow the aging process，says a report in The Telegraph newspaper．
We notice that when people grow old，they have reduced strength，loss of hair，backache，weakness in general，and wrinkles，among others．This happens because when people grow old，their bodies produce T-cells．These T-cells contain a particular substance called Fas．Fas makes the cells in the body destruct themselves．
So the only way to slow down aging is to slow the production of T-cells in the body．This can happen if people eat low calorie food．Then the body is not active enough to produce extra T-cells．But，is going hungry all the time a good price to pay for staying young？
This is where Dr．Shen's herbal medicine comes in．But how effective it will be，only time can tell．
28． How did Dr．Shen find the solution to the problem of aging？D
A．By studying Western medicine．
B．By learning traditional Chinese medicine．
C．By doing research on both Western and Chinese people．
D．By combining both Western and Chinese medicine．
29．What plays the most important role in keeping people young according to Shen？B
A．Medical treatment．
B．People's good kidney．
C．Level of people's activity．
D．Positive life attitude．
30．The reason why people become old is thatB．
A．their bodies are unable to fight diseases
B．their bodies produce T-cells
C．they have reduced strength，loss of hair
D．they become weaker and weaker
31．We can probably learn from the passage thatC．
A．people should try to quicken the production of T-cells in the body
B．the more Chinese herbal medicine people drink，the better for health
C．it remains unknown how effective Dr．Shen's herbal medicine is
D．producing more low calorie food allows people to keep young．
分析 本文介绍了Dr．Shen在几十年中，通过中西医结合的方法，研究并发现了人变老的原因，推出了自己独特的中药来延缓衰老．根据Dr Shen的理论，人变老是由于人体的肾脏器官会随着年龄的增长而产生一种T-cells，如果想延缓衰老就要减少T-cells的产生．但是这种理论还有待于证实．
解答 28．D 细节理解题．从文章第三段And，he has been working for the past forty years to put together the best of both and find a cure for aging．可知他是通过中西医结合研究出了人变老的奥秘．所以D选项正确．
29．B 细节理解题．文中提到 it is the kidney（肾脏）which adjusts the functioning of the body as well as aging process，肾脏调节人体的功能以及变老的过程，由此可知B为正确选项．
30．B 细节理解题．从文章倒数第三段可知This happens because when people grow old，their bodies produce T-cells．因为人变老的时候，他们的身体产生T-cells．所以B选项正确．
31．C 推理判断题．从文章末句 But how effective it will be，only time can tell．可以判断作者不能确定效果，药物如何还需要时间的检验，所以C选项正确．
点评 本篇文章主要是细节理解方面的题型，需要考生通过跳读迅速找到对应的句子进行详细理解，句子的理解可以结合上下文意思，通过逻辑推理得到．
