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二、neither...nor...等对称结构作主语
neither...nor..., (either)...or..., not only...but also..., not...but...等并列结构作主语时采取就近原则：谓语动词的数由与其最接近的那个主语的数决定。如：
1. Not only I but also Jane and Mary ________ tired of having one examination after another. (全国卷)
A. is B. are
C. am D. be
【分析】答案选B。谓语动词跟与其最接近的主语Jane and Mary一致。
2. Either you or the headmaster ________ the prizes to these gifted students at the meeting. (上海卷)
A. is handing out B. are to hand out
C. are handing out D. is to hand out
【分析】答案选D。谓语动词应与the headmaster一致，排除B和C；是将来时态，排除A。
三、“a / the number of＋复数名词”作主语
表示“…的数量”的“the number of +复数名词”作主语时，谓语动词用单数；表示“一些 / 许多…”的“a number of +复数名词”作主语时，谓语动词用复数。如：
The number of people invited ________ fifty, but a number of them ________ absent for different reasons. (全国卷)
A. were; was B. was; was
C. was; were D. were; were
【分析】答案选C。invited是过去分词作定语修饰people的。
四、one or two...与one / a...or two作主语
“one or two +复数名词”作主语，谓语动词用复数；“a / one +单数名词+or two”作主语，谓语动词用单数。如：
Only one or two students were late today. 今天只有一两个同学迟到。
One student or two was late today. 今天只有一两个同学迟到。
五、neither / either / any / none of...作主语
“neither / either / any / none + of +复数名词或代词”作主语，谓语动词用单数(正式)或复数(非正式)均可。其中any, none后面不跟“of+复数名词或代词”，若指的是复数可数名词，作主语时，谓语动词也是既可用单数也可用复数。如：
None of the guests want(s) to stay. 没有一个客人想留下不走。
Neither of us is / are happy about the situation. 我们俩对这种局面都不满意。
六、some / half / most / all及分数等加of...作主语
“all of / the rest of / half of / most of / part of / plenty of / some of / a lot of / lots of+名词”，以及“分数(如two thirds)或百分数(如thirty percent )＋of＋名词”作主语时，谓语动词的数由of后的名词的数决定。如：
________ of the land in that district ________ with trees and grass. (上海卷)
A. Two fifth; is B. Two fifth; are
C. Two fifths; is D. Two fifths; are
【分析】答案选C。分数的分子是two，分母fifth加s. two fifths，排除A和B；谓语要与分数后面的名词the land一致，所以谓语动词用单数。
七、没接of短语的half, all, the rest等作主语
half, all, the rest等作主语，根据意义一致的原则确定谓语动词的形式：所指为单数意义，动词用单数形式；所指意义为复数意义，动词用复数形式。如：
I need only a glass of beer; the rest is yours. 我只需要一杯啤酒，其余的是你的了。
Three of us will go; the rest are staying at home. 我们有三个人去，其余的人留在家里。
