表语从句讲解及专项练习 (2011-06-25 22:04:18)转载表语从句讲解及专项练习概念：表语从句就是用一个句子作为表语。说明主语是什么或者怎么样，由名词、形容词或相当于名词或形容词的词或短语充当，和连系动词一起构成谓语。放在系动词之后,一般结构是“主语+系动词+表语从句”可以接表语从句的连系动词有be, look, remain, seem等。 The trouble is that we are short of money.困难是我们资金短缺。 That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 At that time, it seemed as if I couldnt think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。引导表语从句的词：从属连词that、whether、as though、 as if（That引导表语
