1、宾语从句中主句是过去时态,宾语从句必须是一种过去的时态。例如:
She asked me if I knew whose pen it was.她问我是否知道这是谁的钢笔。
He said that he could finish his work before supper.他说他会在晚饭前完成工作。
2、当表示客观事实或普遍真理的句子做宾语从句时,任何时候都用一般现在时。例如:
The teacher said that the earth goes round the sun.老师说过地球绕着太阳转。
3、当主句是现在时态时,宾语从句可以根据需要使用任何时态。例如:
I don't know when he will come back.我不知道他将何时回来。
He tells me that his sister came back yesterday.他告诉我他姐姐昨天回来了。
扩展资料:
需要注意的是,任何从句都使用陈述句语序,宾语从句当然也不例外。宾语从句的分类:
1、动词宾语从句:顾名思义,它是位于动词后面的宾语从句。例如:He asked whose handwriting was the best in our class.他问我们班上谁的书法最好。
2、介词宾语从句:顾名思义,它是位于介词后面的宾语从句。例如:I agree with what you said just now.我同意你刚才说的话。
3、形容词宾语从句:顾名思义,它是位于形容词后面的宾语从句。例如:I am afraid that I will be late. 恐怕我要迟到了。
一般情况下宾语从句的时态必须和主句的时态保持一致:
一、如果主句的谓语动词是一般现在时或一般将来时,宾语从句中的谓语动词可根据意义的需要,使用任何一种时态。如:
1) Could you tell me when you will come again? 你能告诉我你什么时候再来吗?
2) I don't know if he arrived yesterday. 我不知道他是否昨天到了。
3) Could you tell me what you were doing at eight last night? 你能告诉我你昨晚八点在干什么?
二、如果主句的谓语动词为一般过去时,从句应用相应的过去时态。
1. 如果主句中的谓语动词所表示的动作与从句的动作同时发生,则从句应用过去进行时或一般过去时。如:
1) She said that she was working on the Internet. 她说她在上网。
2) He told me that he knew the computer technology very well. 他对我说他精通电脑技术。
2. 如果从句的动作发生在主句的动作之前,则从句应用过去完成时。如:
1) He didn't know what they had come here for. 他不知道他们到这里来的目的。
3. 如果从句的动作发生在主句的动作之后,则从句应用过去将来时。如:
1) Jim told me he would spend his holidays in the south. 吉姆告诉我他将到南方度假。
使用宾语从句的时态还应注意下列特殊情况:
一、如果宾语从句中有明确表示过去的时间状语,不论主句用什么时态,从句一律用过去时。如:
1) She said she came to work here in 1998. 她说她是1998年来这里工作的。
2) The teacher told us that the war broke out in the winter of 1923. 老师告诉我们那场战争爆发于1923年的冬天。
二、如果宾语从句表示客观真理、科学原理、自然现象、现阶段存在的客观事实、现在经常性或习惯性的动作、谚语、格言等,不论主句用何种时态,从句一律用一般现在时。如:
1) Our teacher told us that light travels much faster than sound. 我们老师对我们说光比声音传播要快得多。
2) The mother told his son that two and three is five. 母亲告诉孩子二加三等于五。
3) We all knew that a friend in need is a friend indeed. 我们都知道,患难之交才是真朋友。
4) He told me that his father is an English teacher. 他告诉我他父亲是名英语老师。
主句是一般过去时态 从句要用过去的某时态,包括:一般过去时,过去完成,过去将来时,过去完成进行时等。如:
He said he was happy. He told me he had done his homework.
但是,如果从句表达的客观事实、普遍真理,从句仍然使用一般现在时。如:
The teacher said the earth goes around the sun.
基于过去式的时态,除非从句是一个客观的真理,此时则用一般现在时。
宾语从句 主句是过去时态 从句中一般也要要用相应的过去时态。但是客观真理除外。
he said that he didn't
know anything about it.
he said the sun comes out from the east.