内容正文:
宾语从句复习三要点
要点一:宾语从句的引导词
1.当宾语从句是由陈述句变化而来时,该从句通常由that引导。此时that没有具体意义,口语中可以省略。例如:
I’m sure. You have seen that book before.(合并句子)
I’m sure (that) you have seen that book before.
2.当宾语从句是由一般疑问句变化而来时,用连词if或whether引导,意思为“是否”,表示选择。例如:
Could you tell us ? Will he really come here ? (合并句子)
Could you tell us if / whether he will really come here ?
注意: if 和whether在引导宾语从句时,一般可以互换,但下列5种情况中只能用whether ,而不能用if 。
1)当和or not 一起使用时。例如:
We didn’t know whether or not she was ready.
我们不知道她是否已做好准备。
5).用在discuss后面时:
They are discussing whether they should go by bus.
小结:三前二后: 句子前面,or not前面,不定式前;介词之后与 discuss后,要用whether不用if.
3.当宾语从句由特殊疑问句变化而来时,则用该特殊疑问词来引导宾语从句。例如:
Could you tell me ? Where is the nearest post office ? (合并句子)
Could you tell me where the nearest post office is ?
注意:连接词作定语时,和它所修饰的词是不可以分开的。例如:What time , which room , how many people等。例如:
I don’t know how many people t