同位语和同位语从句

同位语和插入语

插入语(位置概念)，插入语可能是定语、状语、同位语

I, when I am in school, love you. (状语)

同位语(内容概念)，核心名词，注意和主句名词相等，并不是修饰（修饰是定语）

Iphone, a famous product that is from Apple, is an electronic device. 核心名词 product = iphone

Iphone, the essential in our life, is an electronic device. 核心名词 the essential = iphone

同位语从句和定语从句

同位语从句（内容：解释说明名词本身）

There is an idea that we could go to school.

定语从句（怎么样：修饰名词）

There is an idea that is good.

常见同位语从句信号词

phenomenon 现象

suggestion 建议

implication 寓意

tendency 趋势

trend 趋势

inclination 倾向

awareness 意识、认知

常见错误用法

1. There is a trend that we could go to school.

   语法上没有问题，但 we could go to school 不是 trend，意思上说不通，应改为：

   There is a trend that a lot of teenagers start to go to school in the afternoon.

2. There is a situation that more people begin to respect our own culture.

   语法上没有问题，但要表达的意思不是情况本身，而是在这个情况下，因此需要用 where （定语从句）而不是 that （同位语从句）：

   There is a situation where(in which) more people begin to respect our own culture.