半倒装高二英语课件

将were， had 或should时， had或should提到主语前， I would expect his help If it should rain tomorrow，构成半倒装形式 Were/Should/Had+主语+(not)其他成分 =If+主语+were/should/had+(not)其他成分 If he were my friend， I should stay indoors If you hadn’t told me about it，用于省略if的虚拟条件状语从句：If的省略:当从句中有were，可省略if， I should never have，