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4.宾语从句的时态变化
教学难点
1. if与whether的区别
2. when与if 引导的宾语从句和状语从句
3. 宾语从句与简单句的互换
Do you know who is the first Chinese astronaut(宇航员)?
Our teacher told us that the earth goes around the sun.
I was sleeping when Mary called me.
I don’t know if he will come tonight.
Let’s find out what’s on tonight .
Find out the Object Clauses
We’ll play soccer if it doesn’t rain tomorrow.
She hopes she can pass the exam.
The teacher told us Tom didn’t tell a lie.
I hear he will be back in an hour.
二 .宾语从句的引导词
1.陈述句作宾语从句,由 来充当引导词连接主从句。
that
that
that
that
that可省略。
1)Do you know book it is （这是谁的书） ?
2)Could you tell me the train is late（火车为什么迟到）？
3)He asked us we left （我们什么时候离开 ）.
2.特殊疑问句作宾语从句, 由 充当引导词来连接主从句。由连接代词who,whom,whose,which,what和连接副词 where,how,why,when引导的宾语从句，这些连词既有词义又充当句子成份。
二 .宾语从句的引导词
whose