英语强调句,the plants are protected from the wind and rain

英语强调句,the plants are protected from the wind and rain
the plants are protected from the wind and rain.
强调后面 的 是用it is the wind and rain that the plants are protected from.
还是 it is fromthe wind^^^
i often help you.
often能进行强调吗？
那换一句：he learnt from farmers
强调宾语，应该是 it is from farmers that...
^^