An electric coil worn in a cap or attached to the head with a band which delivers magnetic pulses to the brain has been shown to relieve the symptoms of severe depression in patients and boost mental performance in young adults.

 

 

主语 An electric coil

 

谓语 has been shown

 

普通 to relieve the symptoms

 

 

单词

 

symptom

 

音标

 

[ˈsɪmtəm]

 

中文词意

 

n.症状；征兆

 

 

这句话的主语"An electric coil"，"worn in a cap"以及"attached to the head with a band"都是过去分词做后置定语，表达一个被动的关系，---“被装在帽子里”和“通过带子被连到了头部”，"which"引导定语从句修饰"a band"，"which"在定语从句中做主语的位置，谓语"delivers"，宾语"magnetic pulses"，"to the brain"可当成状语，句子主干的谓语"has been shown"，语态是被动态；不定式"to relieve..."更像是主语的定语后置，注意"to relieve the symptoms"和"to boost mental performance"是并列关系。

 

 

研究发现，把一个通电线圈装在帽子里戴上，或是通过一条带子把线圈与头部相连，从而把磁脉冲传导给大脑，可以减轻严重抑郁症患者的症状，还能提升年轻人的智力表现。

 

 

见语法分析