关于主谓一致的问题,另外还有几点需要注意:
l 、当中心词为度量、距离、价格等复数名词的时候,谓语动词则采用单数形式。如: Two miles is a short distance .
2 、在如 many a+ 单数名词; each and each 组后面,谓语动词仍然用单数形式。如: Many a student makes the same mistake .
3 、当主语后面跟由 with , together with , but , along with , like . in addition to , as well as , as much as , rather than , except 等连接的词组时,其谓语动词的形式依主语的单复数形式而定。如: Statistics as well as physics always causes me a lot of headaches .在这里,谓语 cause 的形式就要依据主语 statistics ,而不用考虑 as well as 后面加的另外一个名词。学科的名词都要用单数谓语动词,所以应该是 causes. 相关例题:
Every policeman and fireman _______on the alert .
A . have been B . was C . are D . were
这道题目的知识点正是上文中提到过的第二点,在 each and each , every and every , no and no 之后的谓语动词应该采取单数的形式,所以正确答案应该是 B ,每一个警察和火警人员都保持警戒状态。
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