帮忙回答一下谓语动词既可用单数有可用复数的情况.（不要把可用单数的给我,可用复数的给我,不是一个概念）.所以我给的悬赏不

帮忙回答一下谓语动词既可用单数有可用复数的情况.（不要把可用单数的给我,可用复数的给我,不是一个概念）.所以我给的悬赏不低所以希望不要糊弄我,我是要交作业的.应该至少五点.

1.集体名词
如果集体名词指的是整个集体,它的谓语动词用单数；如果它指集体的成员,其谓语动词就用复数形式.这些词有family,class,crowd,committee,population,audience等.如：Class Four is on the third floor./ Class Four are unable to agree upon a monitor.
2.由连接词and或both …… and连接起来的合成主语
（1）一般要用复数形式的谓语动词,但是若and所连接的两个词是指同一个人或物时,它后面的谓语动词就应用单数形式.如：The writer and artist has come.
（2）由and连接的并列单数主语前如果分别有no,each,every more than a （an） ,many a （an）修饰时,其谓语动词要用单数形式.如：Every student and every teacher was in the room./ No boy and no girl likes it.
3.由“a lot of,lots of,plenty of,the rest of,the majority of + 名词”构成的短语以及由“分数或百分数+名词”构成的短语作主语,其谓语动词的数要根据短语中后面名词的数而定.如：There are a lot of people in the classroom./ The rest of the lecture is wonderful./ 50% of the students in our class are girls.
4.表数量的短语“one and a half”后接复数名词作主语时,其谓语动词可用单数形式（也可用复数.如：One and a half apples is （are） left on the table.
5.就近一致原则
(1) 当两个主语由either …… or,neither …… nor,whether …… or ……,not only …… but also连接时,谓语动词和邻近的主语一致.如：Either the teacher or the students are our friends./ Neither they nor he is wholly right./ Is neither he nor they wholly right?
(2) there be句型be动词单复数取决于其后的主语.如果其后是由and连接的两个主语,则应与靠近的那个主语保持一致.如：There are two chairs and a desk in the room.
注意：Here引导的句子用法同上.
给你举了几个常用的例子,不懂欢迎追问,