1、Cancer will be cured in the near future.

2、Difficulties will be defeated by us eventually.

一般将来时的被动语态构成：肯定句：主语+will+ be + 及物动词的过去分词主语+am/is/are going to+be+过去分词。

否定句：主语+ won't be+ 过去分词主语+am not/isn't/aren't going to+be+过去分词