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5.________ we'll succeed depends on ________ we have enough courage.(  )
A.Whether; whetherB.if; if
C.Whether; ifD.If; whether

分析 我們能否成功取決于我們是否有足夠的勇氣.

解答 答案是A,考查名詞性從句.whether 與if在引導主語從句、表語從句、同位語從句時一般用whether不用if,分析句子可知we'll succeed 是主語從句; we have enough courage是賓語從句,而且是做介詞on的賓語,從句作介詞賓語時只用whether不用if.所以答案選A.

點評 名詞性從句一直是高考考查的熱點,近幾年的高考題主要考察在具體語境中對what和that的辨析,此外,也要求學生對定語從句和名詞性從句有清晰的辨認. 首先我們要判斷它是哪個名詞性從句.名詞性從句是主句的一部分,可以充當主語、賓語、表語、同位語.就是說,如果我們能判斷出某個從句是某個主句的主語、賓語、表語或同位語,

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