适用于：人教课标高一英语下学期必修3 Unit5 Grammar新授课课件

1. 同位语从句含义
同位语从句在句中充当同位语从句成分, 其一般跟在一些抽象名词(idea; belief ; fact; truth; problem; news 等)后面, 对名词作进一步解释说明。                
结构: n.+ 连接词 + 从句
同位语从句常用 that 引导或用连接副词when / where/why / how / whether 
1) The idea that computers can recognize human voices surprises many people.
2) Sydney kept his promise that he would always do anything he could for Lucie to make sure of her happiness.
注: 1. 同位语从句多用that 引导;
2. 在 have no idea 之后常用wh-引导同位语从句。
I have no idea where he has gone.
I have no idea when he did it.
I have no idea what he did.