if解释为如果时后面加什么时态IF解释为如果时后面加什么时态解释为是否时后面又加什么时态

Question

if解释为如果时后面加什么时态
IF解释为如果时后面加什么时态
解释为是否时后面又加什么时态

Answer 1

1.当“if”作“如果、假如”讲,引导条件状语从句时,常常用一般将来时态与之搭配.如：If it rains tomorrow,we will stay at home.If he doesn't come on time,I'll go myself.2.当“if”作“是否”讲,引导宾语从句时,其具体时态要和主句一致.如：Do you know if we'll have sports-meeting next week?He asked me if I was 15 years old.My mother asked me if I had finished my homework.The teacher asked us if we would have a rest.