宾语从句三要素一次理清——引导词、语序、时态，初三同学收藏
引言
宾语从句是初三上学期的核心语法，也是中考单选和完形的高频考点。很多同学一看到长句子就慌，其实宾语从句就考三件事：引导词、语序、时态。
抖音上一条"九上 Unit3 宾语从句中考核心考点"视频把这三要素整理得很清楚。这篇文章帮你一次理清。
核心概念：什么是宾语从句
宾语从句就是用一个句子来作宾语，相当于把一个完整句子塞进主句里。
```text
I know. + He lives in Beijing.
合并：I know that he lives in Beijing.
（我知道他住在北京。）
```
要素一：引导词怎么选
陈述句变宾语从句 → that
that 只起连接作用，没有实际意思，口语中常省略。
```text
I think (that) he is right.
She said (that) she would come.
```
一般疑问句变宾语从句 → if / whether
if / whether 意为"是否"，不能省略。
```text
Do you know if she will come?
I wonder whether he is honest.
```
特殊疑问句变宾语从句 → 保留疑问词
what / who / where / when / why / how 直接作引导词。
```text
I don't know where he lives.
Can you tell me what your name is?
```
要素二：语序——永远用陈述语序
这是最容易错的点。不管原句是不是疑问句，进入宾语从句后一律改成"主语 + 谓语"的陈述语序。
```text
错：Do you know where is he?
对：Do you know where he is?
错：Can you tell me how can I get there?
对：Can you tell me how I can get there?
```
记忆口诀：从句语序要记清，主语谓语按顺序，千万莫用疑问句。
要素三：时态呼应
主句是现在时 → 从句任意时态
```text
I know that he is busy now.（现在）
I know that he was busy yesterday.（过去）
I know that he will be busy tomorrow.（将来）
```
主句是过去时 → 从句用过去的某种时态
```text
He said that he was busy.（一般现在 → 一般过去）
He said that he was reading.（现在进行 → 过去进行）
He said that he would come.（一般将来 → 过去将来）
He said that he had finished.（现在完成 → 过去完成）
```
客观真理 → 永远用一般现在时
即使主句是过去时，从句如果说的是客观真理，时态不变。
```text
The teacher told us that the earth goes around the sun.
（老师告诉我们地球绕着太阳转。）
```
做题三步法
```text
- 看引导词：陈述句用 that，一般疑问用 if/whether，特殊疑问用疑问词
- 看语序：改成主语+谓语的陈述语序
- 看时态：主现从任意，主过从倒退，真理永一现
```
总结
宾语从句三要素：
```text
引导词：that（陈述）/ if·whether（是否）/ 疑问词（特殊疑问）
语 序：永远用陈述语序（主语+谓语）
时 态：主现从任意，主过从倒退，真理永一现
```
```text
今日小抄：
I think (that) he is right. that 可省
Do you know if he will come? if = 是否
where he lives 陈述语序，不是 where does he live
the earth goes around the sun 真理用一般现在时
```