当从句用过去时 怎么判断主句用什么时态 5
1.主句用一般现在时,从句可用任意时态。可归纳为“主现从不限” 。
2、主句用过去时,从句用过去某个时态。可归纳为“主过从四过”。
3、主句用过去时,从句是科学真理、客观常识、名人格言时用一般现在时。
4、情态动词could/would用于,“请求”,表示委婉、客气的语气时,从句不受主句的约束。
根据从句语法功能的不同可分为:主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。
前四类由于主语从句、表语从句、宾语从句及同位语从句在句子的功用相当于名词,所以通称名词性从句;定语从句功能相当于形容词,称为形容词性从句。
而状语从句功能相当于副词,称为副词性从句。状语从句还可以分为条件状语从句、原因状语从句、地点状语从句、目的状语从句、让步状语从句、比较状语从句、方式状语从句、结果状语从句和时间状语从句。
扩展资料:
主语从句小结:
1、引导主语从句连词有that,whether,who,what,whatever等。
2、连词位于句首不能省略。
3、主语从句大多数情况下视为第三人称单数。
注意:当what引导的名词性分句作主语时,主谓一致问题极为复杂。
用作状语的从句叫作状语从句,其关联词是一些从属连词。修饰主句中的动词、形容词和副词,通常由从属连词引导,按其意义和作用可分为时间、地点、 条件、 原因、让步、目的、结果、 方式、比较状语从句等。
参考资料来源:百度百科--从句
宾语从句 主句是过去时态 从句通常用过去范围的时态,但不尽然。一般情况下宾语从句的时态必须和主句的时态保持一致
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:I don’t know if he arrived yesterday.
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。
i)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: She said that she was working on the Internet.
ii)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: He didn’t know what they had come here for.
iii)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: Jim told me he would spend his holidays in the south.
应注意下列特殊情况:
i)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。
ii)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:Our teacher told us that light travels much faster than sound.
①从句用一般过去时或过去进行时表示与主句谓语动词动作同时发生
I only knew he was studying in a western country,but I didn’t know what country he was in.
我只知道他当时在西方的一个国家读书,可不知道是哪个国家.
He asked me if I was reading the story The Old Man and the Sea when he was in.
他问我他进来的时候我是否正在读.
②从句过去完成时表示该动作发生在主句谓语动作之前
He told me that he had told Mary about the meeting already.
他告诉我他已经把有关会议的事情告诉的了Mary.
③从句谓语用过去将来时表示该动作发生在主句谓语动作之后
The reporter asked if the government would take necessary measures to put down the to-do.
记者问政府是否会采取必要的措施镇压骚乱.
如果从句是一个客观真理,那么从句的时态不根据主句的时态而变化
The teacher said that the moon goes around the earth yesterday.
老师昨天说月亮绕着地球转.
当宾语从句的引导词是who,which,what,when,where,how,why等表疑问时,不能按正常语序安排,经常将这类引导词置于句首
Who do you think the public might choose as their favorite singer this year?
你认为今年公众会选谁为他们最喜欢的歌手.
时态: 1.主句用一般现在时,从句可用任意时态.可归纳为“主现从不限” 2.主句用过去时,从句用过去某个时态.可归纳为“主过从四过” 3.主句用过去时,从句是科学真理、客观常识、名人格言时用一般现在时. 4.情态动词could/would用于,“请求”,表示委婉、客气的语气时,从句不受主句的约束.
追问:
怎么判断你讲的主过从四过啊?拜托大师教下,我分不清主句用过去式从句用过去式那种时态?感觉好难啊......
追答:
就是主句是一种过去时,从句为各种相应过去时态。 He wanted to know what the manager had said at the meeting. He wanted to know who hadn’t passed the exam. He wanted to know when she would leave this building. He wanted to know why she cried last night. He wanted to know where she was going to study. He wanted to know which student was his partner in the short play. He wanted to know if (whether) Tom could play basketball with him that morning. He wanted to know how she managed to solve the problem. 在例子中,当主句是过去时态时(一般过去时,过去进行时,过去将来时,过去完成时),从句根据不同情况必须使用过去时态的一种,(大自然的现象和真理除外)。