paragraph 2: A second kind of medicine is called "natural cures" or "folk medicine" in which less educated people try to cure sicknesses with various herbs.

     paragraph 3: The third kind is called "health spas" or "faith healing"

The main idea of the passage : t

Step 4: Summary the method of the conclusion ( teacher )

找文章的中心句往往出现在每一段的首句或末句，要多加重视。而在回答一篇文章的主旨大意时，可以尝试将每一段的首句或末句连在一起，组成一篇小的类似与缩写的短文，再归纳，这样归纳出来的主旨大意较准确。

Step 5: Analyse ( teacher )

归纳策略对培养学生快速理解文章是很有帮助的。尤其适合于较长的文章，学生能很快地抓住文章的脉络，理清思路，集中注意力于所读的文章。