名词性从句一、主语从句1.It+系动词+形容词(necessary,right,likely,unlikely,wrong,important,certain,clear,obvious,strange,normal 等)+that 从句It is certain that most of the farmers have brought in more money by all means.2.It+be+名词(短语)(a pity,a shame,good news,a fact,an honour,a wonder,no wonder 等)+that 从句It’s no wonder that you’ve achieved so much success.3.It+be+过去分词(said,told,heard,reported,decided,suggested,advised,ordered,remembered,thought,considered,wellknown,announced 等)+that 从句It is said that the professor has already succeeded in carrying out the experiment.4.It+特殊动词(seem,appear,happen,matter)+that 从句It happened to me that I had been away when he called.二、宾语从句1.动词的宾语从句有 些 动 词 带 宾 语 从 句 时 习 惯 上 需 要 在 宾 语 从 句 前 加 it 。 这 类 动 词 ( 词 组 ) 有hate ,enjoy,like ,love,dislike,see to 等。I hate it when they talk with their mouths full.2.一般情况下介词后只能用 wh类连接词引导宾语从句。We are talking about whether we admit students into our club.注意:(1)where 引导的从句有时也可用作介词的宾语。We could see the temple quite clearly from where we lived.(2)that 引导的从句作介词的宾语是很少有的,只有在 except,in,but 等介词后偶尔可能用到。Your composition is quite good except that the organization is a bit loose.3.sure,certain,glad,pleased,happy,surprised 等表示“情感”的形容词后也可带宾语从句。I’m sure that they will make it in spite of the terrible weather.三、表语从句1.主句的主语是 idea,advice,suggestion,order,request,requirement 等名词时,表语从句的谓语应用虚拟语气,即“(should+)动词原形”的形式。His suggestion is that we (should) change our course.2.主语为名词 reason 时,表语从句中的连接词要用 that,而不用 why 或 because。The reason for such a serious accident is ...