主謂賓,定狀補(bǔ).表語從句就是修飾名詞的一個(gè)句子,一般THAT引導(dǎo).
1． 定義：用作主語的從句叫做主語從句.
2． 構(gòu)成：關(guān)聯(lián)詞+簡單句
3． 引導(dǎo)主語從句的關(guān)聯(lián)詞有三類：
(1) 從屬連詞that.如：That they were in truth sisters was clear from the facial resemblance between them.
很明顯,她們確是親姐妹,她們的臉型很相似.
(2) 從屬連詞whether.如：
Whether he’ll come here isn’t clear.他是否會來這里還不清楚.
(3) 連接代詞who,whom,whose,what,which,whoever,whatever,whichever
連接副詞 where,when,how,why.如：
What she did is not yet known.她干了什么尚不清楚.
How this happened is not clear to anyone.這事怎樣發(fā)生的,誰也不清楚.
Whoever comes is welcome.不論誰來都?xì)g迎.
Wherever you are is my home ---- my only home.你所在的任何地方就是我的家----我唯一的家.