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18.Although most of them have no doubt ________he will win the match,I still wonder________  he has been well prepared.(  )
A.if; thatB.that; whetherC.that; thatD.whether; if

分析 虽然他们大多数人毫无疑问地相信他会赢得这场比赛,但是我仍然想知道他是否已经做好了充足的准备.

解答 答案B.
分析句子结构可知,让步状语从句中"Although most of them have no doubt ________he will win the match"有同位语从句"There is no doubt that…..是毫无疑问的","doubt"用于否定句中只能用连词"that"引导,因此排除A和D项;主语中动词"wonder"后为宾语从句,根据语境可知,从句中意思应为"是否",用"whether/if"来引导,排除C项;因此B项符合语境,故选B.

点评 本题考查名词性从句.解答此类题目首先要读懂句意和分析句子结构,其次判断是名词性从句中的哪一种从句,然后再分析从句中的成分,如果从句中缺成分且不指代人时一般用what.

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