[语法篇]名词性从句中的八大易错点

名词性从句相当于名词，按其在句中的成分可分为以下4种：

主语从句宾语从句表语从句同位语从句名词性从句中的连接词：

名词性从句中的8大易错点：

1. if/whether引导从句

eg: I don"t care whether or not he comes.

2. if/whether和that引导从句

eg:______ you are accepted by Tsinghua University is good news.

We offer her the job, but I don"t know ______ she"ll accept it.

3. that和what引导从句

that只起连接作用，不充当任何成分

what引导名词性从句，可在句子中充当主语、宾语

eg:Experts believe _______ people can waste less food by shopping only when it is necessary.

It is by no means clear _______ the president can do to end the strike.

4. it作形式主语、形式宾语

eg:It is certain that you will pass the college entrance exam.

It is a pity that I missed the party held last night.

It is reported that the accident was caused by carelessness.

It had never occurred to him that he might be falling in love with her.

it作形式宾语（常见的谓语：make, think, feel, find, consider等）

Eg:I find it important that we should keep calm in danger.

5. wh-ever引导从句

whoever, whatever, whichever, whomever可作主语、宾语。

6. 表语从句中的固定句式：

eg:The reason why he was absent was that he was ill.

What comforted the young mother was that the baby came to life.

It looks as if it is going to rain.

7. it作形式主语引导主语从句和强调句型的区别

区别：去掉强调句型中的it/this is/was.....that/who,然后还原位置，句子通顺则是强调句型。

判断：It is a rule that he gets up at six o"clock every morning.

It is the little girl that/who I want to see.

8. 同位语从句和定语从句的区别

希望能帮大家解决困惑