英語語法名詞性從句知識：表語從句用法詳解

　　一、表語從句的引導詞

　　引導表語從句的詞有連詞that, whether，連接代詞和連接副詞，關系代詞型what，以及as if, as though, because等連詞。

　　1. 由that引導

　　The fact is that he doesnt really try. 事實是他沒有做真正的努力。

　　The trouble is that I have lost his address. 麻煩的是我把他的地址丟了。

　　My suggestion is that we should tell him. 我的建議是我們應該告訴他。

　　His sole requirement was (is) that the system work. 他唯一的要求是這個制度能起作用。

　　My idea is that we should start making preparations right now. 我的意見是我們馬上就開始做準備工作。

　　2. 由whether引導

　　The question is whether the film is worth seeing. 問題是這部電影是否值得看。

　　【注意】whether 可引導表語從句，但與之同義的if卻通常不用于引導表語從句。

　　3. 由連接代詞引導

　　You are not who I thought you were. 你已不是我過去所想像的人。

　　The problem is who we can get to replace her. 問題是我們能找到誰去替換她呢。

　　The question is who (m) we should trust. 問題是我們應當相信誰。

　　What I want to know is which road we should take. 我想知道的是我們應走哪條路。

　　4. 由連接副詞引導

　　The problem is how we can find him. 問題是我們如何找到他。

　　That was when I was fifteen. 這是我15歲時發生的事。

　　Thats where I first met her. 那就是我第一次遇見她的地方。

　　Thats why he didnt come. 這就是他沒有來的緣故。

　　Thats why I object to the plan. 這就是我反對這個計劃的原因。

　　Thats where you are wrong. 這就是你不對的地方。

　　5. 由關系代詞型what引導

　　Thats what I want to stress. 這是我想強調的。

　　Thats what we are here for. 我們來這里就為了這個。

　　Fame and personal gain is what theyre after. 他們追求的是名利。

　　He is no longer what he was. 他已經不是以前的他了。

　　6. 由as if / as though引導

　　It isnt as if you were going away for ever. 又不是你離開不回來了。

　　Now it was as though she had known Millie for years. 現在好像她認識米莉已有好多年了似的。

　　It is not as though we were poor. 又不是我們家里窮。

　　一、表語從句的引導詞

　　引導表語從句的詞有連詞that, whether，連接代詞和連接副詞，關系代詞型what，以及as if, as though, because等連詞。

　　1. 由that引導

　　The fact is that he doesnt really try. 事實是他沒有做真正的努力。

　　The trouble is that I have lost his address. 麻煩的是我把他的地址丟了。

　　My suggestion is that we should tell him. 我的建議是我們應該告訴他。

　　His sole requirement was (is) that the system work. 他唯一的要求是這個制度能起作用。

　　My idea is that we should start making preparations right now. 我的意見是我們馬上就開始做準備工作。

　　2. 由whether引導

　　The question is whether the film is worth seeing. 問題是這部電影是否值得看。

　　【注意】whether 可引導表語從句，但與之同義的if卻通常不用于引導表語從句。

　　3. 由連接代詞引導

　　You are not who I thought you were. 你已不是我過去所想像的人。

　　The problem is who we can get to replace her. 問題是我們能找到誰去替換她呢。

　　The question is who (m) we should trust. 問題是我們應當相信誰。

　　What I want to know is which road we should take. 我想知道的是我們應走哪條路。

　　4. 由連接副詞引導

　　The problem is how we can find him. 問題是我們如何找到他。

　　That was when I was fifteen. 這是我15歲時發生的事。

　　Thats where I first met her. 那就是我第一次遇見她的地方。

　　Thats why he didnt come. 這就是他沒有來的緣故。

　　Thats why I object to the plan. 這就是我反對這個計劃的原因。

　　Thats where you are wrong. 這就是你不對的地方。

　　5. 由關系代詞型what引導

　　Thats what I want to stress. 這是我想強調的。

　　Thats what we are here for. 我們來這里就為了這個。

　　Fame and personal gain is what theyre after. 他們追求的是名利。

　　He is no longer what he was. 他已經不是以前的他了。

　　6. 由as if / as though引導

　　It isnt as if you were going away for ever. 又不是你離開不回來了。

　　Now it was as though she had known Millie for years. 現在好像她認識米莉已有好多年了似的。

　　It is not as though we were poor. 又不是我們家里窮。