例208　When a new movement in art attains a certain fashion, it is advisable to find out what its advocates are aiming at, for, however farfetched and unreasonable their principles may seem today, it is possible that in years to come they may be regarded as normal.

【结构分析】When a new movement in art attains a certain fashion是个时间状语从句，主干是it is advisable to find out..., what引导的宾语从句what its advocates are aiming at, for引导的原因状语从句，后面加上插入语however farfetched and unreasonable their principles may seem today，这个状语从句的主干是it is possible that in years to come they may be regarded as normal。

【亮点回放】此句话的亮点在于多个状语从句，前面有时间状语从句，后面是原因状语从句，这种状语从句前后夹击很经典。

【核心词汇】

a new movement in art　艺术领域的一个新运动

attain a certain fashion　发展成某种流行时尚

advisable　合理的

advocate　倡导

aim at　真正意图

farfetched and unreasonable　牵强无理

principle　原则

【参考译文】当艺术领域的一个新运动发展成某种流行时尚时，最好应该弄清这场运动倡导者的真正意图，因为不管他们的原则在今天看来多么牵强无理，很可能多年以后他们的理论会被视为正常。