♦宾语从句的引导词

1. 当宾语从句是陈述句时（包括肯定句和否定句），连词由that引导，因为that在从句中不作任何成分，也没有任何具体意思，因此在口语或非正式文体中常省略。

Lin Tao feels (that) his own team is even better.

She says (that) she won't take part in the sports meeting next Sunday.

Jim thought (that) the train was like a big moving party.

He said (that) he would like to see the headmaster.

在主句为动词be加某些形容词（如sorry, sure, afraid, glad等）作表语时，后面所跟的省略that的从句也可算是宾语从句

I'm sorry (that) I don't know .

We're sure (that) our team will win .

I'm afraid (that) he won't pass the exam .

2. 当宾语从句是一般疑问句时，由连词whether或 if 引导（口语中常用if），因为if/whether翻译成：_____________，具有一定的意义，所以不能省略

Lily wanted to know if /whether her grandma liked the handbag .

Let's see if /whether we can find out some information about that city .

She asked me if /whether she could borrow these books .

【练习】

1). I want to know __________________________________.（他是否跟我们一起去公园）

2). Ask him _____________________. （他是否能来）

3). I don't know ___________________________.（是否要下雨）

★注意：只能用whether 不用if 的四种情况

① 后面有or not

　　I don't know_________ or not you'll go.

② 后面跟不定式

He doesn't know _________ to visit that old man again.

③ 宾从在介词后

I'm interested in _______ he'll go.

④ 当宾语从句置于句首时

________ he lives there, I want to know.