时间状语从句和条件状语从句区别Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导

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时间状语从句和条件状语从句区别Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导

时间状语从句和条件状语从句区别Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导
时间状语从句和条件状语从句区别
Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导条件状语从句.)

时间状语从句和条件状语从句区别Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导
在这里的话if.when 都能引导条件状语从句的,但是if比较普遍,所以可能题目出得混淆了,不过这我们也么得办法,哈哈,按照书上就好啦.

你好。其实这种句子在逻辑上是非常混乱的,因为用if 与用when在语法上并没有什么区别。我感觉,出题人的英语太精深了,或者说他对英语不太了解,反正出题不严谨。其他就没有什么可说了。