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1、宾语从句用法详解核心提示：宾语从句是主从复合句中最常见的从句之一。它作及物动词、介词或者某些形 容词的宾语。由于宾语从句涉及到引导词、语序、时态等多方面的内容，所以宾语从句的 用法一直是学习的重点难点。本文对宾语从句的用法进行了详尽讲解并附有例句，望对中 学生朋友有所帮助。一. 宾语从句的定义置于动词、介词等词性后面起宾语作用的从句叫宾语从句。宾语从句的语序必须是陈述语序。谓 语动词、介词、动词不定式，v.-ing形式后面都能带宾语从句。有些形容词（afraid,sure,glad等） 之后也可以带宾语从句。二. 宾语从句中引导词的用法在复合句中作主句的宾语，引导词有：连词：that （tha
2、t 常可省略），whether, if代词： who, whose, wha t ,which副词： when ,where, how, why 等。（一）that引导的宾语从句（在非正式场合that可以省略）可跟that从句做宾语的动词有：say, t hink, insis t, wish, hope, demand, imagine, wonder, know, suppose, see, believe, agree, adm it, deny, expec t, explain, order, command, feel, dream, sugges t, hear, mean, n
3、ot ice, prefer, request, require, propose, declare, report 等。例句： The boy believes that he will travel through space to other planets.注意事项：当主句谓语动词是think, believe, suppose, expect等词，而宾语从句的意思是 否定时，常把否定转移至主句表示。例句： I dont think it is right for him to treat you like that.在以下情况中that不能省略当句中的动词后接多于两个由that引导的
4、宾语从句时,第一个that可省， 但后面的that不可省。例句：He said （that） you were too young to understand the matter and that he was asked not to tell you.2当主句的谓语动词与that宾语从句之间有插入语时，that 一般不可省。 例句：Justthen I noticed, for the first time, that ourmaster was wearing his fine green coat and his black silk cap.3当that从句是双宾语中的直接宾语时，
5、that不可省。例句：I cant t ell him that his mot her died.注意事项：许多带复合宾语的句子，that引导的宾语从句经常移到句子后部，而用it作形式宾 语。例句： I find it necessary that we should do the homework on time.（二）由whet her, if引导的宾语从句由whether（if）引导的宾语从句，实际上是一般疑问句演变而来的。意思是“是否”。宾语从句 要用陈述句语序。一般说来,在宾语从句中whether与if可以互换使用，但在特殊情况下if与whether 是不能互换的。例句： I wo
6、nder whether（if） they will come to our party.只能用whether，不能用if引导的宾语从句4在带to的不定式前例句：We decided whether to walk there.5在介词的后面例句：Im t hinking of whe ther we should go to see the film.6在动词后面的宾语从句时例句：We discussed whet her we had a spor ts mee ting nex t week7直接与or not连用时例句：I cant say whe ther or not thet c
7、an come on ti me.只能用if不能用whether引导的宾语从句8 if引导条件状语从句，意为“如果”例句：The students will go on a picnic if it is sunny.9 if引导否定概念的宾语从句时例句：He asked if I didn t come to school yes terday.10引导状语从句even if （即使）和as if （好象）时例句：He talks as if he has known all about it.（三）连接代词和连接副词引导的宾语从句这样的宾语从句实际上是由特殊疑问句变化而来的，宾语从句要用陈
8、述句语序。用于这种结构的 动词常常是：see, say, tell, ask, answer, know, decide, show, find out, imagine, suggest, doubt, wonder, discover, understand, inform, advise 等。英语中的连接代词有：who,whom,whose,which,what,在句中担任主语、宾语、定语或者表语。例句： Can you tell me whom you are waiting for?英语中的连接副词有：when,where,why,how，在句中担任状语的成分。例句： None of
9、 us knows where these new parts can be bought.三宾语从句的语序宾语从句的语序是陈述句语序即：连接代词/副词+主语+谓语+其他成分。例句如下：11 I dont know what they are looking for.12 Could you tell me when the train will leave?13 Can you imagine what kind of man he is?四.宾语从句的时态14主句是一般现在时，从句根据实际情况使用任何时态。例句：The headmas ter hopes every thing goes
10、well.15主句是过去时态，从句须用过去时态的某种形式。例句：She was sorry that she hadn t finished her work on ti me.16当宾语从句表示的是一个客观真理或者事实时，即使主句是过去时，从句 也用一般现在时态。例句：The t eacher told his class that ligh t t ravels fas ter t han sound.五宾语从句的特点17宾语从句可以作及物动词、介词及形容词的宾语。18宾语从句的语序一律用陈述句语序。19连接词that引导宾语从句在句中无词义，不充当句子成份，多数情况下 可以省略。20 whether和if都可引导宾语从句，但whether后可紧跟or not；whether 从句可作介词的宾语。21如果从句太长，可以用形式宾语it.
