The English teacher and Chinese teacher are both young.The singer and dancer is popular withyoung people.为什么第一个句子be动词用are,第二个句子be动词用is,

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The English teacher and Chinese teacher are both young.The singer and dancer is popular withyoung people.为什么第一个句子be动词用are,第二个句子be动词用is,

The English teacher and Chinese teacher are both young.The singer and dancer is popular withyoung people.为什么第一个句子be动词用are,第二个句子be动词用is,
The English teacher and Chinese teacher are both young.The singer and dancer is popular with
young people.
为什么第一个句子be动词用are,第二个句子be动词用is,

The English teacher and Chinese teacher are both young.The singer and dancer is popular withyoung people.为什么第一个句子be动词用are,第二个句子be动词用is,
第一个用are是说英语和语文老师是2个人
第二个用is表示那是一个人他既会唱歌又会跳舞

这两个句子是哪里的?感觉确实有问题啊……

因为第一个be动词之前的主语是分别是English teacher和Chinese teacher ,但是不用就近原则,所以用复数,而第二个be动词的主语是the singer and dancer 指一个唱跳型艺人,故用单数。关键看主语另外要看连词The English teacher and Chinese teacher are both young.如果这个句子是说英语和语文老师是2个人,...

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因为第一个be动词之前的主语是分别是English teacher和Chinese teacher ,但是不用就近原则,所以用复数,而第二个be动词的主语是the singer and dancer 指一个唱跳型艺人,故用单数。关键看主语另外要看连词

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第一个句子的主语是两个人:一个英语老师和一个汉语老师。第二个句子的主语是一个人:一个歌手兼舞者