引導(dǎo)名詞性從句的連接詞
1、連接代詞：who[主語 ],whose [定語],whom[賓語],what [主語,賓語,表語],
which[定語].有詞義,在從句中擔(dān)任成分.
2、連接副詞：when[時(shí)間狀語],where[地點(diǎn)狀語],why[原因狀語],how[其他狀語].
有詞義,在從句中擔(dān)任成分.
3、連接詞：that,whether,if[是否],在從句中不擔(dān)任成分
表語從句
1、表語從句在復(fù)合句中作表語,位于系動詞之后.
The question was who could go there.
2、引導(dǎo)表語從句的連接詞that有時(shí)可省去.
My idea is (that) we can get more comrades to help in the work.
（四）賓語從句
1、賓語從句在復(fù)合句中作賓語.引導(dǎo)賓語從句的連詞that一般可省略.
I hope (that) everything is all right.
2、介詞之后的賓語從句,不可用which或if連接,要分別用what或 whether.
I’m interested in what you’ve said.
3、whether與if?？苫Q.但下面情況不能互換.
①賓語從句是否定句時(shí),只用if,不用whether.
I wonder if it doesn’t rain.
②賓語從句中的whether 與or not直接連用,就不能換成if；不直接連用,可換.
I don’t know whether or not the report is true.
I don’t know whether/ if the report is true or not.