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宾语从句（Object Clause） 宾语从句就是置于动词、介词等词后面起宾语作用的句子。 I know him. I know (that) he is a good man. 1、当宾语从句是陈述句时，由连词that引导，因为that在从句中不作任何成分，也没有任何具体意思，因此在口语或非正式文体中常省略。 Jacky feels (that) his own ability is better. Jim thought (that) the train was like a big moving matchbox. 2、当宾语从句是一般疑问句时，由连词whether或if引导（口语中常用if），因为 if/whether翻译成：“是否”，具有一定的意义，所以不能省略。 She asked me if she could borrow these books. Let's see whether we can find out some information about the city. 3、当宾语从句是特殊疑问句时，由连接代词（what, who, whom, which, whose）或连接副词（when, where, how, why）引导，因为连接代词或连接副词在从句中担任一定的句子成分，具有一定的意义，所以不能省略。 Do you know what he said just now？ I asked him where I could get so much money？ 4、带how的词组也都可以引导宾语从句 Could you tell us how much it costs to fly to Hainan？ Could you tell us how long the meeting will last？ I don't know how far it is to the cinema？ Please tell us how soon you will be ready？ Can you tell us how old his brother is？ Could you tell us how often you go abroad for a holiday？ 5、在主句为动词be加某些形容词（如sorry, sure, afraid, glad等）作表语时，后面所跟的可以省略that的从句，也可算是宾语从句。 I'm sorry (that) I don't know We're sure (that) our team will win. I'm afraid (that) he won't pass the exam. We're happy (that) you can come. 宾语从句的语序用陈述语序 His brother asks when he will go to the library？ I don't know what he wants to buy. Can you tell me who we are going to meet？ 1、如果主句是现在的时态（包括一般现在时，现在进行时，现在完成时），从句的时态可根据实际情况而定（包括一般现在时，一般过去时，一般将来时，现在完成时等）。 I know he lives here. I know he lived here ten years ago. I have heard that he will come tomorrow. 2、如果主句是过去的时态（包括一般过去时，过去进行时），那么从句的时态一定要用相对应的过去的某种时态（包括一般过去时，过去进行时，过去将来时，过去完成时）。 I knew who lived here. I saw she was talking with her mother. He said that he had seen the movie. 3、当从句是客观真理，定义，公理，定理时用一般现在时。 The teacher said that the earth travels around the sun. |
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