新东方在线中考网整理了《2019中考英语复习资料：whether引导主语从句》，供同学们参考。

　　whether引导主语从句，意为“是否”，只起连接作用，不充当任何成分。(置于句首时必须用whether引导，置于句尾时，间或可用if。)

　　Whether he will win the game is not clear.

　　Whether he will come is uncertain.

　　Whether she comes or not doesn't concern me.

　　It is not clear whether/if he will come.

　　It was uncertain whether he would come.

　　相关链接

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