各类从句讲解与例句..pdf

英语中六大从句用法总结 1.主语从句 1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用 it 作形式主语，而将从句放在句末。 常见的句型有： *It is a fact\a pity\a question\good news that... *It seems\appears\happened\has turned out that... *It is clear\important\likely\possible that... *It is said\reported\estimated\has been proved that... It is said that comic books create a connection between people of the same generation. It seems that the performance is very useful. 2)what 引导的主语从句表示 “...的东西时 ”，一般不用 it 作形式主语。 What we lack is experience. 3)what,who,when,why,whether 等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。 How the plan is to be carried out should be discussed again. I did know why I felt like crying. 2.宾语从句 1）宾语从句可位于及物动词、介词和某些形容词后。连词 that 常可省略。介词后一般接疑问词引导的宾语 从句。 in that( 因为 ),except that( 除了 ),but that(只是）已构成固定搭配，其他介词后一般不接 that 引导的宾语 从句。 *I promised that I would change the situation. *All this is different from what American young people would say about friendship. *He is certain that watching so much television is not good for children. *This article is well-written except that it is a bit too long. 2 ）非谓语动词之后的宾语从句 Reading that it was just a difference in custom, the foreigner smiled and said nothing. 这个外国人知道了这只是 风俗的不同后，就笑了笑，没说什么。 On being asked whether he had any good food in Germany, he answered 一问到他在德国是否吃过什”Terrible ” . 么好菜，他就回答说： “糟糕的很 ”。 3)宾语从句后如有宾补，要用形式宾语 it 来代替，而把宾语从句移至宾补之后。 He has made it clear that he would not change his mind. 4)在 think,believe,suppose,expect 等动词后的宾语从句中， 如果谓语是否定的， 一般将否定词移至主句谓语上， 宾语从句则变成肯定形式。 He didnt think that the money was well spent. 3.表语从句 表语从句出现在结构为 “主语 +系动词 +表语从句 ”的句子中。 表语从句除可用 that,what,when,why,whether,how 等引导外，还可由 because,as if(though)等引导。不缺其他成分时，用 that 引导，且不可省略。如主句主语为 reason,只能用 that 引导表语从句，不可用 be