Question

关于英语句子成分All the ducks lying quietly upon the water ,or stand

Answer 1

lying quietly upon the water ,or standing on their heads in it 是两个并列的现在分词短语，作状语。两者用or连接起来了。

for they could do that （因为它们可以这样做）是原因状语从句，修饰standing on their heads in it 。for相当于because，但语气更轻。因为它与前面的短语...