1 What is there more of in winter?
2 There is more of snow and ice in winter.
3 There tends to be more snow and ice in winter.
请问老师:
1 以上3个例句表达是否正确?
2 例句2中的单数is对吗?more应该指代snow and ice,是否要用are?
3 例句3中的单数tends不太懂取决于什么?