真实条件状语从句

条件状语从句的定义

条件状语从句就是一个句子充当状语,表示条件。条件状语从句常常由if和unless引导

I'm the type of person,if you ask me a question,and I don't know the the answer,I'm gonna tell you that I don't know. --------- 《当幸福来敲门》

if引导的真实条件状语从句

if引导的真实条件状语从句只有一种时态,那就是将来时。而在从句中,用一般现在时,替代将来时。
eg：If I get my salary,I will buy a new phone for myself.
eg：If you ask me a question,I'm gonna tell you that ...

unless引导的真实条件状语从句

eg：I will go out with you on weekend unless I'm too busy.

其他引导词

• so long as/as long as 只要
  eg：I can finish the work so long as you give me time.
• Supposing/suppose 假设,如果
  eg：Supposing he is absent,what shall we do?
• Providing/provided 如果,假如
  eg：I will go out with you providing the weather is good