畅游学海敢搏风浪誓教金榜题名。决战高考，改变命运。凌风破浪击长空，擎天揽日跃龙门。
名词性从句用法与专练
主语从句、表语从句、宾语从句和同位语从句在复合句中的作用相当于名词，统称为名词性从句。
i.主语从句。
主语从句是在复合句中作主语的从句。引导主语从句的连词有that, whether；连接代词有who, what, which；连接副词有when, where, how, why 等。例如：
whether she will come or not is still a question. 他是否来还是个问题。
that she was chosen made us very happy. 他被选中了使我们非常高兴。
whether we will visit the great wall tomorrow has not been decided.我们明天是否参观长城还未决定。
whoever guesses what i h**e in my hand may h**e it.
谁猜对了我手里是什么东西，这东西就给谁。
注意：主语从句中的一些固定句式。
it is a pity (名词) that-clause
it is a pity that you h**en’t passed the exam.真遗憾你没有考及格。
it is clear / possible (形容词) that-clause
it is clear that he didn’t come to the meeting yesterday.很明显他昨天就没有来开会。
it seems/appears that...似乎……
it happened that...碰巧……
it is known to all that-clause众所周知……
it is said that …据说……
it is hoped that …希望… …
it is supposed that …据推测说… …
it must be admitted that …必须承认… …
it must be pointed out that … 必须指出的是……
it is well known that …众所周知… …
it will be said that …有人会说… …
it is generally considered that …大家认为… …
it is believed that …有人相信… …
it is suggested that …有人建议……
it is said that tom has been to china three times.据说汤姆来中国已经三次了。
ii. 宾语从句。
宾语从句是在复合句中作宾语的从句。引导宾语从句的连词有that，whether，if 连接代词有what， which，who，whose连接副词有how，when， why， where等。that 在口语中通常可以省略；主句是一般现在时，宾语从句可以用任何时态；主句是一般过去时，主句和从句的时态一般要呼应；但从句表示的是客观事实、真理时不必呼应，仍用一般现在时。
例如：i think that he is a good student.我认为他是一位好学生。
i think that he was ill yesterday. 我认为他昨天病了。
he said that she was right. 他说她是对的
he said that he would go to shanghai.他说她要去上海。
i doubt whether he is a spy.我怀疑他是不是个奸细。
do you know which topic they’re discussing? 你知道他们在讨论什么题目吗？
would you tell me who you want to see? 你能告诉我你要见谁吗？
can you tell me where they are? 你能告诉我他们在哪儿吗？
the doctor ordered that he(should) stay in bed for a few days.医生命令他在床上呆几天。
注意。一、在“一坚持（insist），二命令（ order ，command ），三建议（suggest，propose，advise），四要求（ask，demand，require，request ）”等后面的宾语从句中用（should）+动词原形，不用would。
在现代英语中，suggest后跟的宾语从句在口语中可用陈述语气。例如：
i suggest that you don't ask him home for the vacation.我建议你不要邀请他到你家度假。
suggest作“暗示”、“表明”讲，它后跟的宾语从句用陈述语气。 例如：
the expression on her face suggested that she was angry.她脸上的表情表明他生气了。
如果宾语从句的动作或状态在insist之前发生或存在用陈述语气；在insist之后发生用虚拟语气。例如：
he insisted that he had never stolen anything and that he should be set free.他坚持他从未偷过任何东西应该把他释放。
mr. li said,“ i wish that i were a woman.” 李先生说：“我要是女人该多好啊。”
注意二、 “wish+宾语从句”表示不能实现的愿望，汉语可译为“可惜……”就好了”，“悔不该……”但愿……”等。表示现在不能实现的愿望，从句中的谓语动词用过去式；表示将来不能实现的愿望用“would/could+动词原形”，表示过去未能实现的愿望时用“had+过去分词”或“could/would + h**e+过去分词。”例如：
i wish it were spring all the year round.但愿一年到头是春天。
i wish you could go with me.你能跟我一起去就好了。
i wish i had arrived there yesterday.= i wish i could h**e arrived there yesterday.昨天到就好了。
he asked me if (whether) i could help him. 他问我是否能帮他一个忙。
31. —where are the children? the dinner’s going to be completely ruined.
i wish they __always late.(2011 北京) b
a. weren’t b. hadn’t been
c. wouldn’t be d. wouldn’t h**e been
注意三、 whether和if的用法。
i don’t know if /whether he will come or not. 我不知道他是否愿意来。
i wonder whether or not he is honest. 我想知道他是否诚实。(or not紧接着连词不用if引导)
it depends on whether we h**e enough time. 这取决于我们是否有足够的时间。(做介词的宾语不用if引导)
注意四、 it作形式宾语的用法。
it常可以放在动词think, find, consider, believe, feel, make等后作为形式宾语。
i think it my duty that i help you with your english.我认为帮助你学习英语是我的责任。
he makes it a rule that he gets up at 6:00.他经常六点钟起床。
在某些表示“喜、怒、哀、乐”的动词。如：like, enjoy, love, hate等，往往不能直接接宾语从句，先接it,将宾语从句放在后面。例如：
i don’t like it that he is so lazy. 我不喜欢他那么懒惰。
i like it in the autumn when the weather is clear and bright. 我喜欢秋天天气晴朗的时候。
除except 和 but外，that引导的从句不能直接在介词后面，先接it,将that从句放在后面。例如：
he insisted on it that he was innocent.他坚持说他是无辜的。
would you see to it that she gets home early? 你负责他早到家，好吗？
在有及物动词与介词组成的固定结构中，从句若作该及物动词宾语时，须借用it。例如：
i le**e it to your own judgment whether you should do it.我让你自己判断这是你是否该做。
we owe it to you that there wasn’t serious accident.多亏了你才没有发生严重事故。
iii. 表语从句。
表语从句在复合句中作表语的从句。引导表语从句的连词有that, whether，as if；连接代词有who, what, which；连接副词有when, where, how, why等。例如：
this is how he solved the problem.这就是他怎样解决问题的。
the question is why we must do it.问题就是我们为什么必须做这件事。
it looks as if it is going to rain. 看来要下雨了。
the question is whether it is worth doing. 问题就是这件事是否值得做。
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