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Unit3 单元语法详解宾语从句和表语从句宾语从句宾语从句在复合句中起宾语的作用，可以放在动词、介词及少数形容词之后。
宾语从句应用陈述句语序。
l. that引导的宾语从句(1)that引导宾语从句时本身无词义，在从句中也不充当句子成分,在非正式文体中that可以省略。
I think( that) you are right. 我认为你是对的。
(2)由并列连词and和but所连接的两个或两个以上的由that引导的宾语从句，第一个从句的that可以省略，第二个及其后的从句中的that不可省略。
He said ( that) he had eaten nothing but that he was not hungry.他说他没有吃东西，但不饿。
(3)在含有复合宾语的句子中，that引导的宾语从句必须后置，用it作形式宾语。
可这样使用的动词有think, find, feel, consider, make等。
We think it possible that you can finish the job today.我们认为你今天可能完成这项工作。
(4)that引导的从句一般不能作介词的宾语（but, except, in除外），有时可借助it来表示。
I know nothing about him except that he is a writer.除了知道他是个作家，别的我一无所知。
We depend on it that you help us with the work.我们要靠你们来帮助我们完成工作。
例1 The teacher informed us we would have a test the next day.解析：考查宾语从句。
句意：老师告知我们第二天进行测试。
从句部分不缺少句子成分，句意完整，所以填that即可。
答案that2. whether/if引导的宾语从句(1) whether和if表示“是否”，在宾语从句中不充当句子成分。
名词性从句的作用相当于名词，因此主语从句、表语从句、宾语从句和同位语从句分别作主句的主语、表语、宾语和同位语。
本单元主要学习宾语从句和表语从句。
5种基本句型The weather is very cold.主语+谓语（连系动词）+表语He laughed.主语+谓语（vi.）I like Chinese food.主语+谓语(vt.)+宾语She taught them physics.主语+谓语(vt.)+间接宾语+直接宾语We must keep the room warm.主语+谓语(vt.) +宾语+宾语补足语表语从句是在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语+系动词+表语从句”。
可以接表语从句的系动词有be, look, remain, seemThis is his job.（表语）They are my friends.(表语）The fact is that we have lost the game. （that 引导的表语从句）引导名词性从句的关联词：从属连词that, whether,as if/as though(不作成分）连接代词what, who, whom, whose, which, wh+ever（作成分）连接副词when, where, how, why.because（作状语）1）The question is _ weather____we can rely on him.2）That’s _because____we were in need of money at that time .3）He looked __as if__he was going to cry .4）That’s _why____I was late .注意：在表语从句中，表“是否”时，只能用“whether”不能用“if”。
引导表语从句的that通常不省略，但在口语或非正式文体中有时也可省略：My idea is (that) we should do it right away. 我的意见是我们应该马上干。
引导名词性从句的连接词可分为三类：连接词：that, whether, if （不充当从句的任何成分）连接代词：what, whatever, who, whoever, whom, whose, which.连接副词：when, where, how, why一、宾语从句宾语从句在复合句中作主句的宾语。
句子结构：主句 +连词（引导词）+ 宾语从句1. 由连接词that引导的宾语从句由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如从句是并列句时,第二个分句前的that不可省。
例如：I realize( that )I'm in charge and that everybody accepts my leadershi p.We must never think (that) we are good in everything while others are good in nothing.注意：在demand、order、suggest、decide、insist, desire, demand, request, command 等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。
例如：I insist that she (should) do her work alone. 我坚持要她自己工作。
The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。
2. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whi chever,等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。
I want to know what he has told you. 我想知道他告诉了你什么。
必修三unit3 Grammar —宾语从句和表语从句一、宾语从句(在复合句中作宾语的从句叫宾语从句。
)1．连接词that 引导的宾语从句that在句中不充当任何句子成分，在口语或非正式文体中常被省去。
①We heard that one more person died in the conflicts of that country.我们听说又有一人在该国的冲突中死亡。
2．连接词whether/if 引导的宾语从句连接词whether/if 作“是否”讲时，常用在ask, care, find out, know, wonder 等动词后常跟带有疑问意义的宾语从句。
从句中仍保持陈述语序，whether或if 不担当句子成分。
②Do you know whether/if any decision has been arrived at?你知道是否已经做出决定了吗？3．连接代词和连接副词引导的宾语从句连接代词who, whom, whose, what, which, whatever, whoever, whomever, whichever连接副词when, where, how, why。
这些连接词都有词义，除引导从句外，还在从句中充当一定的成分，可作主语、宾语、表语、定语、状语等。
这种宾语从句有疑问意义，但不是疑问句，不能用疑问语序，而要用陈述语序。
③She always thinks of how she can work well. 她总是在想怎样把工作做好。
即学即练1 (1－1.根据句意填入适当的连接词)①我们决不能认为自己什么都好，别人什么都不好。
We must never think ______ we are good in everything while others are good in nothing.②我不知道他是否会出席会议。
I don't know _________ he will attend the meeting.③我想知道她去了哪里。
