语法专项复习 —— 宾语从句Object Clauses01什么是宾语从句
在复合句中用作宾语的从句一个句子做另一个句子的宾语Topic one0 2Topic two宾语从句的三大要素语 序时 态连接词0 8Topic three语序:陈述句语序 主 + 谓 + 其他成分时态:注意:若从句说明的是一般真理、客观事实、自然现象、名言,则从句仍用现在时
主句:一般现在 / 将来时从句:任何时态主句:过去时从句:相应的过去时态0 3Topic three 连接词1
that 引导2
whether/if 引导3
连接代词 who,whom, whose,which,what 引导4
连接副词 when,why, where,how 引导0 4Topic four1
陈述句充当宾语从句,从句由 that 引导, that 可省略
He said that he could finish homework by himself
一般疑问句充当宾语从句,从句由 if/whether 引导eg
I don't know if/whether he is at home now
0 6注意:以下情况中,连接词只能用 whether ,不能用 if1 )与 or not 连用,或提出两种选择eg
I'm not sure whether they can come on time or not
2 )介词之后eg
We are worried about whether it will rain tomorrow
0 74 )宾语从句放句首时,只能由 whether 引导eg
Whether the watch is Tom's or not ,I don't know
They asked me whether to go shopping
3 )动词不定式之