專門替中國人寫的英語語法11-1：問題型式的名詞子句

　　11-1 問題型式的名詞子句

　　假如我們說〝我不知道他住在哪里〞，或者〝他究竟住在哪里仍是個謎〞，我們就可以用這種問題型式的名詞子句，每一個名詞子句都要用who, where, whether, which等來開始。以下是典型的例子：

　　I don't know where he came from.(我不知道他來自何處。)

　　Whether or not he is an American is still a secret.(他是否是個美國人仍然是個秘密。)

　　I will find out where he is living.(我要找出他住在哪里。)

　　I can not remember whether he smokes or not.(我不記得他是否吸煙。)

　　Please let me know how old he is.(請讓我知道他多大年紀。)

　　Kindly tell me what you really need.(請讓我知道你需要什么。)

　　You have to decide which book you want to buy.(你應該決定買哪一本書。)

　　Do you know where he is from?(你知道他是從哪里來的?)

　　Do you know who he is?(你知道他是誰嗎?)

　　Please ask your brother whether he is coming or not.(請問你的兄弟他會不會來。)

　　When she is coming remains a puzzle.(她何時來仍然是個謎。)

　　I don't know what he is interested in.(我不知道他的興趣何在。)

　　I don't understand what he is talking about.(我不知道他在談什么。)

　　Do you know whose bicycle this is?(你知道這輛腳踏車是誰的嗎?)

　　Do you know which country Hawaii belongs to?(你知道夏威夷屬于哪一個國家嗎?)

　　You should ask your mother where you were born.(你應該問你的母親你在哪里生的。)

　　雖然每一個名詞都有問題的意義，我們卻不能在名詞子句中用問句的型式，因為畢竟這個名詞子句僅僅是一個子句而已，它的結尾并不是〝?〞。

　　因此以下的句子都是錯的：

　　*I don't know where did he come from.

　　*I will find out how old is he.

　　*Kindly tell me what do you need.

　　*You have to decide which book do you want to buy.

　　*When is he coming remains a puzzle.