3.当主句谓语动词是think, suppose, expect等时，后边的宾语从句含有否定词not时，常把not提前，构成否定前移。如：

　We don't think there is anything of interest in your pictures.

　我们认为你的画中没有什么有趣的东西。

　I don't believe she can marry the young lawyer. 我相信她不会嫁给那个律师。

2.有时为了平衡句子结构，常用it作形式主语或宾语，而将真正的主语或宾语从句置后。如：

　It seemed certain that she would win the prize.

　好像可以肯定的是她将赢得这个奖项。

　They think it necessary that everyone should be present at the party.

　他们认为大家都有必要出席这个聚会。

1.what引导主语从句时，主句谓语动词一般用单数，但如果表语是复数名词，主句谓语动词用单复数均可。如：

　What we need is more time. 我们需要的是更多时间。

　What I have now is/are two books. 现在我拥有的是两本书。

3.表示“建议、命令、要求、观点”等意义的名词后接(如：advice, suggestion, order, demand)表语从句、同位语从句中也用“should+动词原形”，其中should可以省略。如：

　The advice that she wait till next week is reasonable.

　让她等到下周的建议是很有道理的。

　His suggestion is that a medical team be sent to the flooded area immediately.

　他的建议是立即派遣医疗队到灾区。

2.主句谓语动词是suggest, insist, demand, advise等动词时，宾语从句谓语用“should +动词原形”，其中should可以省略。如：

　We all insist that we (should) not rest until we finish the work.

　我们都坚持认为不休息直到工作完成。

　It was demanded that we should set off before daybreak. 命令我们黎明前出发。

　一般来说，这些从句的时态要与主句的时态相呼应，但应注意以下几点：

1.宾语从句表示客观事实或真理，从句常用一般现在时。如：

　The teacher told us that light travels faster than sound.

　老师告诉我们光比声音传播得快。

2.wh?连接词

　名词性从句的引导词还有who, whom, whose, which 等连接代词以及when, where, why, how等连接副词。在使用过程中，要注意区分这些词的含义和句法功能。如：

　The trouble is who can solve the problem. 麻烦在于谁能解决这个问题。

　When the power station will be finished is uncertain.

　电站什么时间建成还不能确定。

1.that和what

　二者都可以引导这些从句，主要区别在于：that是连词，不作句子成分而what是连接代词，既起连接作用，又充当句子成分。如：

　What he said at the meeting made us surprised.

　他在会议上说的话使我们惊讶。

　She expressed the hope that they would come to China one day.

　她表达了将来有一天再到中国的愿望。

2.感叹句变为宾语从句，也应用陈述语序。如：

　You don't know how happy they were to see each other.

　你不知道他们彼此见面是多么高兴。

1.名词性从句都应用陈述语序，即把引导词放在从句开头,后边采用“主语+谓语”结构；

　I don't like the idea that money is everything.

　金钱就是一切，这个观点我不喜欢。