(2) There have been a number ofincidents over the years involving foreigners that have drawn a strong reaction from an offended government and people - for example, the family of tourists who foolishly clambered all over a revered Buddha statue.
(3) When buying an object, it is important to distinguish between the object's aestheitc appeal and its religious significance.
(4) Representations of the Buddha, for example, must be placed at ....
句(1)当中的needs to be taken 表示“需要、应该”，显然是作者的态度和观点，当表示态度或观点的句子出现在段首，通常是topic sentence , 重点信息。
句(2)There be 句型表事实，事实跟在观点后，毫无疑问是充当论据的角色。句子中的核心名词incidents 是复数，表示这个句子对下文具有结构性功能，下文会就论据进行细节性列举。
句(3)it is important to do 表示作者对某个事情的认知和判断，出现在两个 for example 中间，是一个细分的判断。