Many a parent has had to go through this same painful process.

　　很多父母都被迫经历了这一段痛苦的过程。

　　Every boy and every girl wishes to attend the party held on Sunday.

　　每个男生和女生都希望参加周日的聚会。

　　2．意义一致原则

　　意义一致原则是指不管主语的形式是单数还是复数，主语的意义决定了谓语动词的单复数。

　　(1)集体名词作主语时，若被看作一个整体，谓语动词用单数形式；若被看作是构成集体的一个个成员，谓语动词用复数形式。常见的集体名词有：family, class, team, group, public, committee, government, audience等。

　　The class consists of 25 boys and 20 girls.

　　这个班由25个男生和20个女生组成。

　　The class are doing experiment.

　　全班学生都在做实验。

　　(2)"分数/百分数/the majority＋of＋名词"作主语时，谓语动词的单复数取决于of后名词的数以及其表示的意义；all, some, half, most, the rest等作主语时，谓语动词的单复数取决于主语实际表达的意义。

　　About one third of the books are worth reading.

　　这些书中大约有1/3值得一读。

　　Only 60 percent of the work was done yesterday.

　　昨天只做了60% 的工作。

　　All of this is wonderful, but the best part of this film is the acting.

　　所有这些都很精彩，但电影最精彩的部分是表演。

　　(3)"the＋形容词"表示一类人在句中作主语时，谓语动词用复数形式。

　　The old are taken good care of here.

　　在这儿老年人被照顾得很好。

　　(4)a quantity of后既可接不可数名词，也可接可数名词复数，谓语动词的单复数取决于of后名词的数以及其表示的意义；quantities of后无论是可数名词还是不可数名词，谓语动词均用复数形式。

　　A quantity of time has been wasted on the project.

　　＝Quantities of time have been wasted on the project.

　　大量的时间被浪费在这个项目上。

　　(5)"a number of＋复数名词"作主语时，谓语动词用复数形式；"the number of＋复数名词"作主语时，谓语动词用单数形式。

A number of students have gone for an outing.