1. 单数主语即使后面带有with, along with, together with, like,but,except, besides, as well as, no less than, rather than,including, in addition to引导的短语,谓语动词仍用单数。
如:Air as well as water is matter. 空气和水都是物质。
No one except two servants was late for the dinner. 除了两个仆人外,没有一个人迟来用餐。
2. 用and连接的并列主语,如果主语是同一个人、同一事、同一概念,谓语动词用单数,否则用复数。如:
The poet and writer has come. 那位诗人兼作家来了。
A hammer and a saw are useful tools. 锤子和锯都是有用的工具。
3. 用and连接的成对名词习惯上被看成是一个整体,如:bread and butter,knife and fork等作主语时,谓语动词用单数。
4. 不定式,动名词,或从句作主语时,谓语动词用单数。如:
Serving the people is my great happiness.
为人民服务是我最大的幸福。
When well go out for an outing has been decided.
我们什么时候出去郊游已决定了。
5. 当连接的并列主语被each, every或no修饰时,谓语动词用单数。
Every boy and every girl likes to go swimming. 每个男孩和每个女孩都喜欢去游泳。
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