用單數(shù)：is going to
family表示“家庭”或“家人”,是集合名詞,若視為整體,具有單數(shù)意義,若逐個(gè)考慮其個(gè)體,則具有復(fù)數(shù)意義.如：
His family are all tall.他家的人都很高.
His family is very large [big].他家是個(gè)大家庭.為什么這句話的意思是：李明的家人要坐飛機(jī)去杭州。family在這里是家人的意思。參考上次回答family視為整體，具有單數(shù)意義