2011年12月大学英语四级语法精讲（9）

　　主语同位语从句：

　　Evidence that Mr. Huang killed himself came out.

　　1）主语必须是一个概括性名词，如：evidence, news, believe, 想法，标志等。

　　2）同位语从句用来解释说明名词。Evidence came out that Mr. Huang killed himself.

　　同位语从句和定语从句的区别：

　　I knew the news that he killed himself.（同位语从句）

　　I knew the news that was written by you.（定语从句）

　　1）同位语从句是用来解释前面的名词，而定语从句是用来修饰、限制前面的名词。

　　2）同位语从句必须是特殊的概括性的名词，而定语从句可以是任何名词。

　　3）同位语从句 that 起引导词的作用（从句主谓宾完整），定语从句 that 起关系代词的作用（从句不完整）。

　　[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. + 名词，选项中的 there be 结构为首选。2. 作表语是形容词优于名词。It is evident that... 3. evident 明显的 dentist 牙医

　　[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