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agreatdealof后面名词加s还是没s?如果agreatdealof后面动词加s吗?anumberof后面名词加s吗

题目详情
a great deal of 后面名词加s 还是没s?如果a great deal of 后面动词加s吗?
a number of后面名词加s吗
▼优质解答
答案和解析
a great deal of +不可数名词(充当主语时,属于第三人称单数,一般现在时的谓语动词加s或者es):大量
如:
A great deal of money is spent on the books.
a number of+复数可数名词(加s或es)(充当主语时,是复数形式)
A number of students are in the classroom.
A number of students work hard.