---Mum. of the apples gone bad． We'd better eat up the as soon as possible．( )A．one third,haveB．one thirds, haveC．one third,hasD．first three,has 题目和参考答案——青夏教育精英家教网——

题目内容

9．---Mum，_______ of the apples ______ gone bad．
We'd better eat up the as soon as possible．（　　）

	A．	one third；have		B．	one thirds； have
	C．	one third；has		D．	first three；has

分析 ---妈妈，三分之一的苹果已经坏了．---我们最好尽快地吃完．

解答 1，分数的分子用基数词，分母需用序数词，分子不是一时，分母序数词需加-s，分子是一时，则不需要加s；，
2，谓语动词的单复数形式主要看of后面的主语，主语是可数名词单数或不可数名词，则谓语动词为单数形式，主语为可数名词复数，则谓语动词为复数形式．本句主语"三分之一的苹果"one third of apples为复数，谓语动词需用复数have．故选A．

点评分数的分子需用基数词，分母需用序数词；注意主语的单复数形式．

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