中考英语知识点：不定代词all /both

all 指三者或三者以上“全都”，all 做主语时，谓语与all所替代的人或物的单复数保持一致，

All the people are happy.(all the people =all of the people)

All of the money is hers.

all day all night 省略“the”,

both 指两者“都”，we both =both of us ,we all =all of us

both ......and ......两者都……连接两个并列主语时，谓语用复数。