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来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/25 05:26:38
在直接引语与间接引语中 if 和 whether 的区别!谢谢老师
解题思路: 名词性从句中基本原则:whether大于等于if,两个都出现的时候,选择whether。
解题过程:
whether与if的区别:
1、whether和if在宾语从句中可以互换,但是作介词宾语时连接词一般用whether。如:
It all depends on whether they will come back.

2、后面直接跟or not 时用 whether。如:
I didn’t know whether or not he had arrived in Wuhan.
3、主语从句和表语从句中只能用whether。如:
Whether the meeting will be put off has not been decided yet.
The question is whether they have so much money.
4、whether可以引导同位语从句,用以说明前面的名词的内容,if不能。如:
We ought to discuss carefully the question whether we can do it or not.
5、whether常与or连用表示一种选择,if不能这样用;whether也可与动词不定式连用但if不能。如:
The question of whether they are male or female is not important.
I have not decided whether to go or not.
6、whether可引导一个让步状语从句表示“不管”、“无论”,而if不能,但可以引导一个条件状语从句表示“如果”如:
Whether he comes or not, we will begin our party on time.
If I have time tomorrow, I’ll go to visit Tom.

总之,除了第6条,其余情况都是whether比较宽。


最终答案:略