来源:网络资源 2022-09-13 14:19:11
宾语从句的三种基本形式:
1.从属连词that引导
that无词义,不充当句子成分,可省略。
如:He told me (that) he was ill.他告诉我他生病了。
注意:以下情况that不能省略
①主句的谓语动词连接多个宾语从句时,第一个that可以省略,而其他的that不能省略。
如:I think (that) it will be sunny tomorrow and that we will go shopping.我认为明天是晴天,我们将去购物。
②that 引导的宾语从句作介词宾语时,that不能省略。
如:I know nothing about her except that she is a teacher.我对她一无所知,只知道她是个老师。
③that引导的宾语从句和主句的谓语动词之间有插入语时,that不能省略。
如:I remembered,first of all,that I lost my USB.我记起来了,尤其重要的是,我弄丢了优盘。
④that 从句位于句首时,that不可省略。
如:That he ever did such a thing I simply don't believe.我简直不相信他做了这样的事。
⑤当宾语从句的主语是his,that或有his和that修饰时。
如:Lucy that me that that was why she was late.露西告诉我那就是她迟到的原因。
2.从属连词if/whether引导
一般情况下可以相互替换,在口语中多用if,不充当句子成分,有具体的含义“是否”。
如:I don't know if you can help me.我不知道你能否帮助我。
I doubt whether he will get there on time.我怀疑他能否准时到那儿。
注意:以下情况只能用whether不可用if
①与or not 连用
如:I wonder whether it is true or not.我想知道它是真是假。
②在介词后
如:It depends on whether it is going to rain.它取决于是否天会下雨。
③在不定式前
如:Whether to go there or not hasn't been decided.是否去那儿还没有决定下来。
④if 引导的宾语从句如果会引起歧义,应避免用if而用whether
如:Please let me know if you want to go.
Please let me know whether you want to go.
3.连接代词或连接副词引导
连接代词:who,whom,whose,what,which,whoever,whatever,whichever
连接副词:where,when,how,why
在句中充当句子成分,不可省略。
如:You can do what you want.你可以做你想做的。
I don't know whose box this is.我不知道这是谁的盒子。
欢迎使用手机、平板等移动设备访问中考网,2024中考一路陪伴同行!>>点击查看