Thenounclauseastheappositive1.Thethoughtthattheycouldcrossthewholecontinentwasexciting.2.TheyforgetthefactthatCanadais5,500kilometresfromcoasttocoast.3.ThegirlsweresurprisedatthefactthatoceanshipscansailuptheGreatLakes.同位語從句

在idea,fact,news,hope,belief,thought,doubt等名詞后面,用that或者連接代詞、連接副詞引導的從句。

同位語從句是對前面的名詞的解釋，說明前面的名詞的具體含義。

(一)同位語從句的引導詞：

連詞:

that,whether

連接代詞:

who,what,whose,which

連接副詞:

when,where,why,how(二)同位語從句的種類1.由連詞that,whether引導的同位語從句,連詞在從句中不做成分,只起連接主、從句的作用。(1)Wearesurprisedatthefact

thatthechildrendiditallontheirown.(2)Ihavenoidea

whetherweshouldsendtheequipmenttothem.2.由連接代詞、副詞引導的同位語從句,除連接主從句,它們還在從句中做相應的成分。(1)Thequestion

whomayhelpusisnotclear.(2)Theyarosethequestion

whereweweretogetthemachinesneeded.(三)注意的問題1.如果同位語從句所解釋的名詞是order,advice,suggestion,proposal,demand,request等時,從句中要使用虛擬語氣，從句謂語動詞用(should)do。 Theyreceivedordersthatthework(should)bedoneatonce.2.在同位語從句中,為了避免頭重腳輕，可以把謂語提前,將從句放在句末。

Wordcamethattheirheadmasterwouldvisitourscool.3.同位語從句中的固定句型Thereisnodoubtthat…

毫無疑問Thereisnodenyingthat…

無可否認Thereisachancethat…

有可能Thereisapossibilitythat…

有可能Thereisanopportunitythat…

有可能4.定語從句和同位語從句的區分

Thefact

thattheseawatercannotbeusedfordrinkingisknowntoall.

(that在從句中不充當成分,引導同位語從句)

Thisisthefact(that)youmustknowclearly.(that替代thefact在從句中做know的賓語,引導定語從句)(1)同位語從句解釋說明前面抽象名詞的內容。(2)tha