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宾语从句
一 概念
在复合从句中作主句宾语的句子叫宾语从句。
二：判断的条件：
1.连接词：that, if/whether, 特殊疑问词
2.陈述句：看连接词后的第 一个单词是否是三种动词（be动词，助动词，情态动词），是三种动
词则是一般疑问句。如果不是，则 不是。
3时态一致
A: 如果主句是一般现在在时或含有情态动词或祈使句，从句用该用什么时态就用什么时态
B: 如果主句是一般过去时，从句只能使用的相应过去时（一般过去时，过去进行时，过去将
来时 would +动词原开，过去完成时had/hadn’t +过去分词）
特殊：如果从句表示某个客观真理、自然现象时，不管主句是什么时态，从句均用一般现在时
二 连接词
1、宾语从句本身是个陈述句，我们用 that 引导，that无词意。
I hope (that) he will come tomorrow.
2、宾语从句本身是一般疑问句，我们用if和whether引导，其含义为是否。
He asked me if/whether I was a teacher.
I don’t know if/whether he will come this evening.
3、宾语从句本身是特殊疑问句，我们用其疑问词引导，其含义为原有的词意。
Do you know when we shall go?
He tried to find out who is the girl’s father.
Can you tell me how long a person can live without food?
四 宾语从句的语序
1、宾语从句本身是个陈述句时，语序不变，连接词用that，that可以省略。
He is a clever boy.
We all say (that) he is a clever boy.
2、宾语从句本身是一般疑问句时，从句变成陈述句语序，连接词用if或whether。
Do you study English at school? 你们在学校学习英语吗？
I wonder if (whether) he was a student.
3、宾语从句本身是特殊疑问句时，从句变陈述句语序，保留原来的疑问词作为连词。
Where were you born ? 你在哪儿出生？
I wonder where you were born..
When will he leave for China?
They asked me when he would leave for China.
How many books does he have?
I don't know how many books he has。
五 宾语从句的时态
I don’t know if he will come tomorrow
He asked me if he would fly to Beijing the next
Our teacher told us that the earth goes around the sun
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