每道题有提问，答案和讲解在最后面1. A day or two is enought. ...or...，谓语动词邻近原则。

为什么还是is?不是are? 2. Nine plus three ___ twelve. a. make b. makes 什么原则选b 3.Very few ___ his address in the town. a. know b .knows 为什么是a? 4.The students in our school each ___ an English dictionary. a.has b. have 每个人都有不应该是has吗？为什么是复数呢？ 5.The pair of shoes ____ worn out. a.was b.was 为什么是单数？ 6.Over 80% of the population ___ workers. a. are b is 前面不应该看成整体么？为什么选a? 7.The whole class ____ greatly moved at his words. a.were b.was 可以把他们看成整体或个人，但是选项里都有怎么判断？这题为何只能选a? 8.The gas works ____ near the city. a. is b.are 为何选a? 9.The surroundings of his house ____ clean now. ***.is b.are 环境不该是单数吗？为什么选b? 10.Her politics ____ neither conservative nor liberal. a. is b are 为什么选b? neither...nor...不是邻近原则吗？ 还有这句话怎么翻译？ 11.No one except two students ____ the meeting. a.was late for b. were late for 为何选a? 12.All but him and me ____ to the exhibition. a. are going b. is going 选a 为什么？主语是指什么 13.Four-fifths of the crop ____. a. was ruined b. were ruined crop是可数的吧 选a,why? 14.Three-fourths of the buildings ___ a.were destoryed b.was destoryed 是看前面的Three-fourths整体还是后面的buildings 选a,why? 15.Mathematics _____ the language of science. a.have been b.is c.are d. has been 这题为什么选a?? 16.In the country, the rich ___ richer,the poor,pooer. a.become b. becomes the rich不该看做整体吗？为什么还选a? 17.The project requires more labor than ____ because it is extremely difficult. a.has been put in b.have neen put in 为什么选a??怎么翻译？ 18.Not one in 100 children exposed to the disease ____ likely to develop it. a. is b.are 为什么选a? 怎么翻译？答案1.应视为一个整体 2.在数学公式中用单数 3.表示很少的 4.主语是the students 5.the pair of 是主语 在这里应该看正是一双鞋 6.主语你看对了 但你还要顾虑宾语阿 宾语是复数说明他就把80%的人口看成了复数了 7.8.9.同上 要分析主语 10.neither...nor...邻近原则指的是在它连接两个主语的时候，此处不是连接的主语 11. no one 是主语应看成单数 12.but him and me是主语 用复数 13.crop应该看成不可数名词 14．四分之三的楼房当然是复数了。

楼房是可数名词 15.我觉得选b 学科应该看成单数的，虽然是复数的形式 16.the rich 表示一类人 看为复数 17.than连接两个并列的成分表示比较前面用的单数requires工程需要更多的人因为很难 18.Not one是主语八分之一的儿童面临疾病，疾病并将恶化。