229. 今年应邀出席教师节庆祝活动的教师人数比去年多。

[误] The number of teachers invited to the Teachers\' Day celebrations this year were larger than that of last
year.

[正] The number of teachers invited to the Teachers\' Day celebrations this year was larger than that of last
year.

注：a number of 是“若干，许多”的意思，后面应该用动词的复数形式；第二个句子内 the number of 中的 number 是“数目”的意思，尽管后面接了复数 teachers，但主语是单数的 number，所以动词须用单数。