1.主谓一致有个三原则:语法一致,意义一致和就近原则,无论哪一种,重要的是分清一个句子中,哪是主语,主语是单数还是复数,分清题目属于哪种一致的情况,然后确定谓语形式。这里我们简单总结一下主谓一致中常见的原则:
(1)and连接两个名词,但表同一事物,谓语用单数。
eg.The writer and singer is my
best friend.
(2)each、 either、
one、 the other及不定代词等作主语时,谓语常用复数。
eg.Everybody is here.
(3)由连词or、either…or、neither…nor、not
only…but also等连接并列主语时及there be句式,There
be句式中谓语动词应用就近原则。
her you nor I am to
blame.
(4)国名、人名、报纸名、书名等专有名词虽以-s结尾,形式上是复数,但谓语动词常用单数。
eg.The United States is a
developed country.但以-s结尾的山脉、岛、瀑布等作主语时,谓语一般用复数。
eg.The philippines lie to the
southeast of China.
(5)由each修饰的名词作主语,谓语用单数。
eg.Each student has an
English-Chinese dictionary.
They each have an
English-Chinese dictionary.
(6)表示时间、距离、钱、重量的名词作主语,若表示整体谓语用单数,但如强调具体数量,谓语则用复数。
eg.Five hundred miles is a
long distance.
Twenty years have passed since
he began to work here.
(7)表示数量的one and a half后面要用复数名词作主语时,其谓语要用单数形式。
(8)定冠词the+形容词/分词表示一类人,谓语动词用复数。
(9)表示成双成套的名词,如trousers,shoes,glasses, compasses等用作主语时谓语用复数。
eg.His black trousers are too
long.