‬whether或if引导的名词性从句

• 当一般疑问句变为名词性从句时，用 whether 或 if 引导， whether 较为正式， if 常用于口语。

1. Please tell me whether she will come.
2. Please tell me if she will come.

1. I wonder whether he locks the door.
2. I wonder if he locks the door.

• 在 whether 后或句尾加 or not 将名词性从句变为选择形式。

1. Please tell me whether or not she will come.
2. Please tell me whether she will come or not .
3. Please tell me if she will come or not .

• whether 引导的名词性从句可以做主语。

1. Whether he comes or not is important to me.

‬疑问词后直接跟不定式

• 疑问词后可直接跟不定式，可以表达 should 或 can 含义。

1. Please tell me what I should do .
2. Please tell me what to do .
3. Alex told me whether we could find it .
4. Alex told me whether to find it .

想像盖茨一样有钱

‬练习

• 将下列疑问句变为名词性从句

1. Is the financial reporter ready?

ans :Let me know if the financial reporter is ready .

• 使用不定式更改下列句子

1. Alex told me when I should come.

ans : Alex told me when to do .

烟台养马岛