主語同位語從句：
    Evidence that Mr. Huang killed himself came out.
    1）主語必須是一個(gè)概括性名詞，如：evidence， news， believe， 想法，標(biāo)志等。
    2）同位語從句用來解釋說明名詞。Evidence came out that Mr. Huang killed himself.
    同位語從句和定語從句的區(qū)別：
    I knew the news that he killed himself.（同位語從句）
    I knew the news that was written by you.（定語從句）
    1）同位語從句是用來解釋前面的名詞，而定語從句是用來修飾、限制前面的名詞。
    2）同位語從句必須是特殊的概括性的名詞，而定語從句可以是任何名詞。
    3）同位語從句 that 起引導(dǎo)詞的作用（從句主謂賓完整），定語從句 that 起關(guān)系代詞的作用（從句不完整）。
    ［P59-37］There are signs _______ restaurants are becoming more popular with families.
    A） that B） which C） in which D） whose
    ［P53-69］___ evidence that language-acquiring ability must be stimulated.
    A） It being B） It is C） There is D） There being
    注：1. + 名詞，選項(xiàng)中的 there be 結(jié)構(gòu)為首選。2. 作表語是形容詞優(yōu)于名詞。It is evident that.。。 3. evident 明顯的 dentist 牙醫(yī)
    ［P17-53］The mere fact _________ most people believe nuclear war would be madness does not mean that it will not occur.A） that B） which C） whatD） why
    ［P7-63］Evidence came up _________ specific speech sounds are recognized by babies as young as 6 months old.A） what B） which C） that D） whose