that leaves turn color and fall to the ground is a sign of winter.分析句子语法.
问题描述：
that leaves turn color and fall to the ground is a sign of winter.分析句子语法.
答
这是一个主语从句
主语是that leaves turn color and fall to the ground,因为主语从句里不缺少成分,因此用that 连词
is 是谓语
a sign 是宾语
of winter 是sign 的定语
要是说is a sign 是系表结构也无所谓,这个无关紧要