好 咱就用一个简单的说法来解答你的问题。 宾语，你应该知道，就是句子中 动作施加的对象。比如。i play football. football 就是宾语。但是当有时候宾语的内容比较多，用一个两个单词不够时，就会用一个句子来充当，这时候，宾语从句就出现了。宾语从句例如 i believe that he is honest. 我相信他是诚实的。这种情况下，一个两个单词已经无法表达他的诚实，这么一个概念，故而出现了一个句子，来扮演宾语的角***。接下来是关于宾语从句的一些用法。供参考一、宾语从句的引导词宾语从句通常由连词that和whether (if)、连接代词或连接副词以及关系代词型what引导：1. that引导We believe that he is honest. 我们相信他是诚实的。The doctor insists that I give up smoking医生坚持要我戒烟。I suggest that we should go tomorrow. 我建议我们明天走。I suggested that we should go the next day. 我建议我们第二天走。We learnt from his letter that he was in Spain. 从他的信里我们了解到他在西班牙。The seller demanded that payment should be made within five days. 卖方要求5日内付款。2. whether / if引导I don’t know whether he’ll arrive in time. 我不知道他是否能及时到。I didn’t know whether they liked the place. 我不知道他们是否喜欢这个地方。I’ll see whether I can ince him to accept it. 我要看看我是否能劝他接受。I asked her whether she agreed. 我问她是否同意。He enquired if her parents spoke Spanish. 他问她父母是否讲西班牙语。I wonder if it’s large enough. 我不知道它是否够大。She didn’t say if he was still alive. 她没说他是否还活着。3. 连接代词引导I don’t know who [whom] you mean. 我不知道你指谁。Please tell me which you like. 告诉我你喜欢哪一个。I’Il do whatever I can do. 我将做我所能做的事。You can take whichever you like. 你爱拿哪个就拿哪个吧。We’ll do whatever we can to save him. 我们将尽我们所能来挽救他。Take whichever seat you like. 你要坐哪个座就坐哪个座位。Give it to whoever you like. 你把它爱给谁就给谁。You don’t know what you are talking about. 你在说什么，你自己也不知道。Tomorrow at this time we’ll know who is elected. 明天这时候我们就会知道谁当选了。4. 连接副词引导He asked why he had to go alone. 他问他为什么必须一个人去。You don’t know when you are lucky. 你身在福中不知福。I asked how he was getting on. 我问他情况怎样。He knows where they live. 他知道他们住哪里。Have you found out how wide the ditch Was? 你了解到那条沟有多宽吗?I’d like to know when they will let him out. 我很想知道他们什么时候会放他出来。We didn’t know why he had answered in that fashion. 我们不明白他为什么这样回答。 这里提到一部分，希望来可以帮助到你，当然以后有问题，可以继续切磋。
1,什么是宾语？I know him.Do you have the time?I think (that) she is beautiful.Why don’t you pay attention to me?宾语位于谓语动词或者介词后2,宾语从句的概念在复合句中作宾语的名词性从句，通常放在主句谓语动词（及物动词）或介词之后。 e.g. We know Mr. Green teaches English. She asked if these answers were right.3,宾语从句三要素引导词（连接词）语 序时态 （一）引导词 [1]由从属连词 that 引导的宾语从句注：that 在句中无词汇意义，在从句中不能充当成分，在口语当中往往省略e.g. I hear (that) he will be back in an hour.that——不能省略的2种情况:1）当that作介词except, in 宾语时They believe in that she must still be single. I know nothing about him except that he is living in Beijing. 2）用it做形式宾语的宾语从句时 （ it常可以放在动词think, find, consider, believe, feel, make等后作为形式宾语，而真正的宾语——that从句则放在句尾） I think it necessary that you should read English aloud.We heard it that she would get married next month.[2]由从属连词 whether, if 引导的宾语从句if/ whether “是否”，说明对陈述的事物不明确或不清楚。常用在ask, wonder, can(could) you tell me 等后。I want to knowif (whether) he will go to the park with us .只能用 whether不能用 if 的情况1. 在介词后面：I’m thinking of whether we should go fishing.We are worried about whether it will rain tomorrow. 2. 在动词不定式前(whether to do sth.) ：They asked me whether to go skating.3.当与or not连用，或提出两种选择时:I don’t know whether he’s free or not.Mary asked whether I was doing my homework or not.Tell me whether you’d like to go shopping or tidy the room. 4. 宾语从句提前时：Whether this is true or not, I can’t say.[3]由连接代词 who, whom, whose, which, what和连接副词 where,how,why,when引导的宾语从句.代词或副词连接主句和从句，并在从句中担任句子成分，具有一定的意义，不可省略。He asked who could answer the question.(二)语序宾语从句的语序用陈述语序：连接词+主语+谓语+其他成分1. When will he go to the library? His brother asks when he will go to the library . His brother asks when will he go to the library . 2. What did he want to buy ? I don’t know what did he want to buy . I don’t know what he wanted to buy .注：当从句的原句为以下句子以及what, who作主语时，语序不变： What’s wrong? What’s the matter? What’s happening? What happened?eg: I don’t know what’s the matter。。 Can you tell me who is over there?Can you tell me who he is ? 否定的转移：若主句谓语动词为think, consider, suppose, believe, expect, guess, imagine等，其后的宾语从句若含有否定意义，一般要把否定词转移到主句谓语上，从句谓语用肯定式。 I don’t think this dress fits you well. I don’t think you are right.（三）、时态1，主句用现在时或将来时，从句可用任何时态， 根据实际情况而定。 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（一般过去时，过去进行时）， 从句的时态一定要用相对应的过去的某种时态（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 asked whether his father would come back tomorrow. He said that he had seen it .3. 从句说明的是一般真理、客观事实、自然现象时， 仍用一般现在时。Dad told us that it is better to do than to say.He told the boy that three and three is six.He told me the earth moves around the sun.4. 从句中有具体时间状语，即使从句动作发生 在主句动作前，仍用一般过去时。 The teacher told me she was born in 1960.I heard that he went to Paris last night.Practice1. The young man asked _____ it's summer or winter. A. either B. that C. weather D. whether2. We don't know ______ they did it . A. how B. who C. what D. which 3. The teacher asks us ____ Jim can come back on time . A. that B. if C. when D. what time 4. Does anybody know ______ we will have a sports meeting this weekend or not . A. if B. where C. whether D. thatkey：D A B C
充当宾语的是一个句子就是宾语从句了
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