Question

5．只有相关各方更多地关注青少年，他们才能形成正确的价值观．（Only）Only if parties concerned pay more attention to the younger generation will teenagers form proper values．．

Answer 1

分析 Only if parties concerned pay more attention to the younger generation will teenagers form proper values．

解答 本句描述的是对事情的一种看法，所以用一般现在时即可．
句子为一倒装句型，only+状语或者状语从句位于句首时要用部分倒装．concerned为过去分词作后置定语，修饰parties．
pay attention to意为"注意"，中间加上程度词more或者less表达更加注意或者较少注意；form为动词表示"形成，养成"．

点评 only+状语（从句）+倒装句型中的状语（从句）有三种情形：介词短语、副词（时间或者地点副词）或者状语从句．如Only then did I realize that I was wrong．只是到了那时我才意识到是我错了．或者Only by working hard can you succeed．只有努力工作你才能成功．