1)and 连接的两个名词表达一个共同的概念时的主谓一致
看见一套马车向我们走来。
误:A cart and horse are seen coming to us.
正:A cart and horse is seen coming to us.
解:当and所连接的两个单数名词作主语是指同一件事或指一个概念时,其谓语要用单数。本题中a cart and horse是指一个共同的概念,意为“一套马车”,其谓语采用单数。下列名词短语通常看作单数:
a needle and thread 一套针线
a knife and fork 一副刀叉 WWw.edUZHaI.NEt中 国 教育文摘
a cup and saucer 一套碟子茶杯
bread and butter 奶油面包
aim and end 目的
truth and honesty 真诚
capacity and efficiency 效能
ignorance and negligence 玩忽无知
love and affection 感情
trial and error 试验摸索
law and order 治安
2)当一个人或一件事兼两种身份而作主语时的主谓一致
那位空军中将参谋长在那次空难中丧生了。
误:The Air-marshal and chief-of-staff were killed in the air crash.
正:The Air-marshal and chief-of-staff was killed in the air crash.
解:由and连接的两个单数名词作主语时,通常谓语用复数;但当and所连接的两个词是指同一个人时,谓语用单数。本题中“空军中将”和“参谋长”指的是同一个人,故其谓语用单数。试比较下列句子:
a.A journalist and a novelist have come to see you.一个新闻记者和一个小说家来看你。(指两个人)
b.A journalist and novelist has come to see you.一个新闻记者兼小说家来看你。(指一个人)
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