宾语从句引导词

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

如果从句是陈述句,引导词用that(that在口语或非正式文体中常省略);如果从句是一般疑问句,引导词用if/whether;如果从句是特殊疑问句,引导词用由疑问词转换而来的疑问代词/副词。

一) 以that 引导的宾语从句,主要用来引导陈述句形式的宾语从句,that可以省略。

I know (that) he is a Canadian athlete.

Do you think (that) the children need to write a song

Maria says (that) she doesn’t like the uniforms.

She told me (that) she would like to go with us.

二) 以whether 或 if 引导的宾语从句,主要用来引导一般疑问句意思或选择疑问句意思的宾语从句。

whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用。如:

I wonder if / whether I can get some advice from you.

Ask him whether / if he can come.

但在有些情况下,只能用whether,不能用if:

1. whether引导的从句常可以与连词or或or not直接连用,而if一般不能。如:

正: Let me know whether you can come or not.

误: Let me know if you can come or not.

2. 当宾语从句提到句首时,只能用whether引导,而不能用if。如:

正:Whether it is true or not, I can’t tell.

误:If it is true or not, I can’t tell.

3. whether可以引导带to的不定式,if则不能。如:

正:I don’t know whether to accept or refuse.

误:I don’t know if to accept or refuse.

4. whether及其引导的成分可放于介词之后,作介词的宾语,但if不能。如:

正: I worry about whether I hurt her feelings.

误: I worry about if I hurt her feelings.

5. whether可以引导从句,作主语、表语或同位语,而if不能。如:

正: It was uncertain whether he would come.

误: It was uncertain if he would come.

6.若用if会引起歧义时,则用whether。

Please let me know if you like the book.可理解为:

a.Please let me know whether you like the book.

b.If you like the book,please let me know.

三) 疑问词引导的宾语从句

疑问代词:what、whom、 who、whose、which

疑问副词:when、where、why、how

例句:1、

2、

3、

5、

相关文档
最新文档