直接引语变间接引语 需要注意哪些问题 我觉的我对时态的变化 和 祈使句变成动词不定式那个不是很清楚

解题过程具体如下：
直接引语和间接引语就是互逆的过程.具体如下：
直接引语变间接引语就是写成宾语从句或动词不定式短语,要注意以下几点:人称变化,时态变化,宾语从句
[解题过程]
1,直接引语是陈述句,变成间接引语,由连词that 引导.
例如:She said:" I am very happy to help you."
She said that she was very happy to help you.
2,直接引语是一般,选择或反问疑问句,变成间接引语,由连词whether或if 引导.
例如:He asked me:"Do you come from China "
He asked me if/whether I came from China.
注意:大多数情况下,if ,whether 可以互换,但句中出现or not,或放在介词后作连接词,只用whether.
例如:She asked whether he could do it or not.
They cried out whether he was all right.
1,直接引语是特殊疑问句,变成间接引语,由相应的疑问词who ,whom,whose,how,when,why,where 等引导.
例如:My sister asked me :" What is your friend "
My sister asked me what your friend was.
2,直接引语是祈使句,变成间接引语,把动词原形变成动词不定式,并在动词不定前加tell,ask,order 的宾语.
例如:The solider ordered:" Be quiet."
The solider ordered us to be quiet.
注意:否定句,在动词不定式前加not
My teacher asked me :" Don't laugh ."
My teacher asked me not to laugh.
5.一些注意事项
(!)直接引语是客观事实,永恒真理,变成间接引语时,时态不变.
例如:
They told their son :"The earth goes round the sun."
They told their son that the earth goes round the sun.
(2)直接引语变间接引语时,指示代词,时间,地点状语作相应的变化.
例如:this—that ,these—those,now—then,today—that day,yesterday—the day before,last year---the year before,ago—before,here---there
(3)直接引语是复合句,以since,when,while 引导的状语从句,变成间接引语时,只改变主句的时态,不改变从句的时态.
例如:He said :"Jim is doing his homework when his father came in."
He said that Jim was doing his homework when his father came in.
(4)间接引语一定要用陈述句的语序,即主,谓,宾的顺序.
例如:They asked:" where are you from "
They asked where you were from.
就是如上所述的这样转化的,感谢猪猪飘过这位知友提供详细的回答,