求初中英语中宾语从句的用法

一、宾语从句是复合句的一种,在句子中主要用来作动词或介词的宾语

宾语从句三注意,时态语序引导词;

主句一般现在时,从句不需受限制;

主句一般过去时,从句须用相应时;

陈述句转化that引,一般疑问句用if/whether,

特殊问句疑问词,引导词后陈述式。

.当主句是一般现在时,一般将来时或祈使句时,从句不受主句的限制,根据自身的需要选用相应的时态。例如:

I know that he'll come back in an hour.

当主句是一般过去时,从句要用过去时的相应时态。例如:

He said that he would go to Beijing.

当主句是一般过去时,而从句表示的是客观真理,自然现象,科学原理,格言等,从句仍然要用一般现在时。例如:

He said that the earth moves round the sun.

陈述句转化成宾语从句时,引导词用that,口语中常常省略;一般疑问句转化成宾语从句时,引导词用if/whether;

特殊疑问句转化成宾语从句时,引导词用特殊疑问词;引导词后要用陈述句语序。例如:

He'll leave a message on the desk. He says...

→He says that he'll leave a message on the desk.

特殊性:

A:当do you think后接特殊疑问句转化成宾语从句时,句式结构应为引导词+do you think+陈述句语序。例如:

When do you think he'll come back?

当主句的谓语动词是think, believe, suppose, guess等时,而且主句的主语是第一人称时,反意疑问句要和从句保持一致,并且要注意否定的转移。例如:

I think he'll come back soon, won't he?

宾语从句的转化

1.当主句的谓语动词是hope, wish, agree, choose, decide等带宾语从句时,而且主从句的主语一致时,这时从句可以简化成不定式结构。例如:

We hope that we shall see you soon.

→We hope to see you soon.

当主句的谓语动词是know, learn, forget, remember, decide等后面带特殊疑问句转化的宾语时,主从句的主语也须一致这时从句可以简化成“疑问词+不定式结构”。例如:

I don't know which sweater I should buy.

→I don't know which sweater to buy

当主句的谓语动词是ask,tell, show, teach等后面带双宾语时,从句的主语和间接宾语一致,且从句是由特殊疑问句转化来时,从句可以转化成“疑问词+不定式结构”。例如:

Could you tell me how I can get to the park?

→Could you tell me how to get to the park?